Apache HTTP Server / CHANGES

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
6111
6112
6113
6114
6115
6116
6117
6118
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
6135
6136
6137
6138
6139
6140
6141
6142
6143
6144
6145
6146
6147
6148
6149
6150
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6248
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
6265
6266
6267
6268
6269
6270
6271
6272
6273
6274
6275
6276
6277
6278
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
6292
6293
6294
6295
6296
6297
6298
6299
6300
6301
6302
6303
6304
6305
6306
6307
6308
6309
6310
6311
6312
6313
6314
6315
6316
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
6327
6328
6329
6330
6331
6332
6333
6334
6335
6336
6337
6338
6339
6340
6341
6342
6343
6344
6345
6346
6347
6348
6349
6350
6351
6352
6353
6354
6355
6356
6357
6358
6359
6360
6361
6362
6363
6364
6365
6366
6367
6368
6369
6370
6371
6372
6373
6374
6375
6376
6377
6378
6379
6380
6381
6382
6383
6384
6385
6386
6387
6388
6389
6390
6391
6392
6393
6394
6395
6396
6397
6398
6399
6400
6401
6402
6403
6404
6405
6406
6407
6408
6409
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
6423
6424
6425
6426
6427
6428
6429
6430
6431
6432
6433
6434
6435
6436
6437
6438
6439
6440
6441
6442
6443
6444
6445
6446
6447
6448
6449
6450
6451
6452
6453
6454
6455
6456
6457
6458
6459
6460
6461
6462
6463
6464
6465
6466
6467
6468
6469
6470
6471
6472
6473
6474
6475
6476
6477
6478
6479
6480
6481
6482
6483
6484
6485
6486
6487
6488
6489
6490
6491
6492
6493
6494
6495
6496
6497
6498
6499
6500
6501
6502
6503
6504
6505
6506
6507
6508
6509
6510
6511
6512
6513
6514
6515
6516
6517
6518
6519
6520
6521
6522
6523
6524
6525
6526
6527
6528
6529
6530
6531
6532
6533
6534
6535
6536
6537
6538
6539
6540
6541
6542
6543
6544
6545
6546
6547
6548
6549
6550
6551
6552
6553
6554
6555
6556
6557
6558
6559
6560
6561
6562
6563
6564
6565
6566
6567
6568
6569
6570
6571
6572
6573
6574
6575
6576
6577
6578
6579
6580
6581
6582
6583
6584
6585
6586
6587
6588
6589
6590
6591
6592
6593
6594
6595
6596
6597
6598
6599
6600
6601
6602
6603
6604
6605
6606
6607
6608
6609
6610
6611
6612
6613
6614
6615
6616
6617
6618
6619
6620
6621
6622
6623
6624
6625
6626
6627
6628
6629
6630
6631
6632
6633
6634
6635
6636
6637
6638
6639
6640
6641
6642
6643
6644
6645
6646
6647
6648
6649
6650
6651
6652
6653
6654
6655
6656
6657
6658
6659
6660
6661
6662
6663
6664
6665
6666
6667
6668
6669
6670
6671
6672
6673
6674
6675
6676
6677
6678
6679
6680
6681
6682
6683
6684
6685
6686
6687
6688
6689
6690
6691
6692
6693
6694
6695
6696
6697
6698
6699
6700
6701
6702
6703
6704
6705
6706
6707
6708
6709
6710
6711
6712
6713
6714
6715
6716
6717
6718
6719
6720
6721
6722
6723
6724
6725
6726
6727
6728
6729
6730
6731
6732
6733
6734
6735
6736
6737
6738
6739
6740
6741
6742
6743
6744
6745
6746
6747
6748
6749
6750
6751
6752
6753
6754
6755
6756
6757
6758
6759
6760
6761
6762
6763
6764
6765
6766
6767
6768
6769
6770
6771
6772
6773
6774
6775
6776
6777
6778
6779
6780
6781
6782
6783
6784
6785
6786
6787
6788
6789
6790
6791
6792
6793
6794
6795
6796
6797
6798
6799
6800
6801
6802
6803
6804
6805
6806
6807
6808
6809
6810
6811
6812
6813
6814
6815
6816
6817
6818
6819
6820
6821
6822
6823
6824
6825
6826
6827
6828
6829
6830
6831
6832
6833
6834
6835
6836
6837
6838
6839
6840
6841
6842
6843
6844
6845
6846
6847
6848
6849
6850
6851
6852
6853
6854
6855
6856
6857
6858
6859
6860
6861
6862
6863
6864
6865
6866
6867
6868
6869
6870
6871
6872
6873
6874
6875
6876
6877
6878
6879
6880
6881
6882
6883
6884
6885
6886
6887
6888
6889
6890
6891
6892
6893
6894
6895
6896
6897
6898
6899
6900
6901
6902
6903
6904
6905
6906
6907
6908
6909
6910
6911
6912
6913
6914
6915
6916
6917
6918
6919
6920
6921
6922
6923
6924
6925
6926
6927
6928
6929
6930
6931
6932
6933
6934
6935
6936
6937
6938
6939
6940
6941
6942
6943
6944
6945
6946
6947
6948
6949
6950
6951
6952
6953
6954
6955
6956
6957
6958
6959
6960
6961
6962
6963
6964
6965
6966
6967
6968
6969
6970
6971
6972
6973
6974
6975
6976
6977
6978
6979
6980
6981
6982
6983
6984
6985
6986
6987
6988
6989
6990
6991
6992
6993
6994
6995
6996
6997
6998
6999
7000
7001
7002
7003
7004
7005
7006
7007
7008
7009
7010
7011
7012
7013
7014
7015
7016
7017
7018
7019
7020
7021
7022
7023
7024
7025
7026
7027
7028
7029
7030
7031
7032
7033
7034
7035
7036
7037
7038
7039
7040
7041
7042
7043
7044
7045
7046
7047
7048
7049
7050
7051
7052
7053
7054
7055
7056
7057
7058
7059
7060
7061
7062
7063
7064
7065
7066
7067
7068
7069
7070
7071
7072
7073
7074
7075
7076
7077
7078
7079
7080
7081
7082
7083
7084
7085
7086
7087
7088
7089
7090
7091
7092
7093
7094
7095
7096
7097
7098
7099
7100
7101
7102
7103
7104
7105
7106
7107
7108
7109
7110
7111
7112
7113
7114
7115
7116
7117
7118
7119
7120
7121
7122
7123
7124
7125
7126
7127
7128
7129
7130
7131
7132
7133
7134
7135
7136
7137
7138
7139
7140
7141
7142
7143
7144
7145
7146
7147
7148
7149
7150
7151
7152
7153
7154
7155
7156
7157
7158
7159
7160
7161
7162
7163
7164
7165
7166
7167
7168
7169
7170
7171
7172
7173
7174
7175
7176
7177
7178
7179
7180
7181
7182
7183
7184
7185
7186
7187
7188
7189
7190
7191
7192
7193
7194
7195
7196
7197
7198
7199
7200
7201
7202
7203
7204
7205
7206
7207
7208
7209
7210
7211
7212
7213
7214
7215
7216
7217
7218
7219
7220
7221
7222
7223
7224
7225
7226
7227
7228
7229
7230
7231
7232
7233
7234
7235
7236
7237
7238
7239
7240
7241
7242
7243
7244
7245
7246
7247
7248
7249
7250
7251
7252
7253
7254
7255
7256
7257
7258
7259
7260
7261
7262
7263
7264
7265
7266
7267
7268
7269
7270
7271
7272
7273
7274
7275
7276
7277
7278
7279
7280
7281
7282
7283
7284
7285
7286
7287
7288
7289
7290
7291
7292
7293
7294
7295
7296
7297
7298
7299
7300
7301
7302
7303
7304
7305
7306
7307
7308
7309
7310
7311
7312
7313
7314
7315
7316
7317
7318
7319
7320
7321
7322
7323
7324
7325
7326
7327
7328
7329
7330
7331
7332
7333
7334
7335
7336
7337
7338
7339
7340
7341
7342
7343
7344
7345
7346
7347
7348
7349
7350
7351
7352
7353
7354
7355
7356
7357
7358
7359
7360
7361
7362
7363
7364
7365
7366
7367
7368
7369
7370
7371
7372
7373
7374
7375
7376
7377
7378
7379
7380
7381
7382
7383
7384
7385
7386
7387
7388
7389
7390
7391
7392
7393
7394
7395
7396
7397
7398
7399
7400
7401
7402
7403
7404
7405
7406
7407
7408
7409
7410
7411
7412
7413
7414
7415
7416
7417
7418
7419
7420
7421
7422
7423
7424
7425
7426
7427
7428
7429
7430
7431
7432
7433
7434
7435
7436
7437
7438
7439
7440
7441
7442
7443
7444
7445
7446
7447
7448
7449
7450
7451
7452
7453
7454
7455
7456
7457
7458
7459
7460
7461
7462
7463
7464
7465
7466
7467
7468
7469
7470
7471
7472
7473
7474
7475
7476
7477
7478
7479
7480
7481
7482
7483
7484
7485
7486
7487
7488
7489
7490
7491
7492
7493
7494
7495
7496
7497
7498
7499
7500
7501
7502
7503
7504
7505
7506
7507
7508
7509
7510
7511
7512
7513
7514
7515
7516
7517
7518
7519
7520
7521
7522
7523
7524
7525
7526
7527
7528
7529
7530
7531
7532
7533
7534
7535
7536
7537
7538
7539
7540
7541
7542
7543
7544
7545
7546
7547
7548
7549
7550
7551
7552
7553
7554
7555
7556
7557
7558
7559
7560
7561
7562
7563
7564
7565
7566
7567
7568
7569
7570
7571
7572
7573
7574
7575
7576
7577
7578
7579
7580
7581
7582
7583
7584
7585
7586
7587
7588
7589
7590
7591
7592
7593
7594
7595
7596
7597
7598
7599
7600
7601
7602
7603
7604
7605
7606
7607
7608
7609
7610
7611
7612
7613
7614
7615
7616
7617
7618
7619
7620
7621
7622
7623
7624
7625
7626
7627
7628
7629
7630
7631
7632
7633
7634
7635
7636
7637
7638
7639
7640
7641
7642
7643
7644
7645
7646
7647
7648
7649
7650
7651
7652
7653
7654
7655
7656
7657
7658
7659
7660
7661
7662
7663
7664
7665
7666
7667
7668
7669
7670
7671
7672
7673
7674
7675
7676
7677
7678
7679
7680
7681
7682
7683
7684
7685
7686
7687
7688
7689
7690
7691
7692
7693
7694
7695
7696
7697
7698
7699
7700
7701
7702
7703
7704
7705
7706
7707
7708
7709
7710
7711
7712
7713
7714
7715
7716
7717
7718
7719
7720
7721
7722
7723
7724
7725
7726
7727
7728
7729
7730
7731
7732
7733
7734
7735
7736
7737
7738
7739
7740
7741
7742
7743
7744
7745
7746
7747
7748
7749
7750
7751
7752
7753
7754
7755
7756
7757
7758
7759
7760
7761
7762
7763
7764
7765
7766
7767
7768
7769
7770
7771
7772
7773
7774
7775
7776
7777
7778
7779
7780
7781
7782
7783
7784
7785
7786
7787
7788
7789
7790
7791
7792
7793
7794
7795
7796
7797
7798
7799
7800
7801
7802
7803
7804
7805
7806
7807
7808
7809
7810
7811
7812
7813
7814
7815
7816
7817
7818
7819
7820
7821
7822
7823
7824
7825
7826
7827
7828
7829
7830
7831
7832
7833
7834
7835
7836
7837
7838
7839
7840
7841
7842
7843
7844
7845
7846
7847
7848
7849
7850
7851
7852
7853
7854
7855
7856
7857
7858
7859
7860
7861
7862
7863
7864
7865
7866
7867
7868
7869
7870
7871
7872
7873
7874
7875
7876
7877
7878
7879
7880
7881
7882
7883
7884
7885
7886
7887
7888
7889
7890
7891
7892
7893
7894
7895
7896
7897
7898
7899
7900
7901
7902
7903
7904
7905
7906
7907
7908
7909
7910
7911
7912
7913
7914
7915
7916
7917
7918
7919
7920
7921
7922
7923
7924
7925
7926
7927
7928
7929
7930
7931
7932
7933
7934
7935
7936
7937
7938
7939
7940
7941
7942
7943
7944
7945
7946
7947
7948
7949
7950
7951
7952
7953
7954
7955
7956
7957
7958
7959
7960
7961
7962
7963
7964
7965
7966
7967
7968
7969
7970
7971
7972
7973
7974
7975
7976
7977
7978
7979
7980
7981
7982
7983
7984
7985
7986
7987
7988
7989
7990
7991
7992
7993
7994
7995
7996
7997
7998
7999
8000
8001
8002
8003
8004
8005
8006
8007
8008
8009
8010
8011
8012
8013
8014
8015
8016
8017
8018
8019
8020
8021
8022
8023
8024
8025
8026
8027
8028
8029
8030
8031
8032
8033
8034
8035
8036
8037
8038
8039
8040
8041
8042
8043
8044
8045
8046
8047
8048
8049
8050
8051
8052
8053
8054
8055
8056
8057
8058
8059
8060
8061
8062
8063
8064
8065
8066
8067
8068
8069
8070
8071
8072
8073
8074
8075
8076
8077
8078
8079
8080
8081
8082
8083
8084
8085
8086
8087
8088
8089
8090
8091
8092
8093
8094
8095
8096
8097
8098
8099
8100
8101
8102
8103
8104
8105
8106
8107
8108
8109
8110
8111
8112
8113
8114
8115
8116
8117
8118
8119
8120
8121
8122
8123
8124
8125
8126
8127
8128
8129
8130
8131
8132
8133
8134
8135
8136
8137
8138
8139
8140
8141
8142
8143
8144
8145
8146
8147
8148
8149
8150
8151
8152
8153
8154
8155
8156
8157
8158
8159
8160
8161
8162
8163
8164
8165
8166
8167
8168
8169
8170
8171
8172
8173
8174
8175
8176
8177
8178
8179
8180
8181
8182
8183
8184
8185
8186
8187
8188
8189
8190
8191
8192
8193
8194
8195
8196
8197
8198
8199
8200
8201
8202
8203
8204
8205
8206
8207
8208
8209
8210
8211
8212
8213
8214
8215
8216
8217
8218
8219
8220
8221
8222
8223
8224
8225
8226
8227
8228
8229
8230
8231
8232
8233
8234
8235
8236
8237
8238
8239
8240
8241
8242
8243
8244
8245
8246
8247
8248
8249
8250
8251
8252
8253
8254
8255
8256
8257
8258
8259
8260
8261
8262
8263
8264
8265
8266
8267
8268
8269
8270
8271
8272
8273
8274
8275
8276
8277
8278
8279
8280
8281
8282
8283
8284
8285
8286
8287
8288
8289
8290
8291
8292
8293
8294
8295
8296
8297
8298
8299
8300
8301
8302
8303
8304
8305
8306
8307
8308
8309
8310
8311
8312
8313
8314
8315
8316
8317
8318
8319
8320
8321
8322
8323
8324
8325
8326
8327
8328
8329
8330
8331
8332
8333
8334
8335
8336
8337
8338
8339
8340
8341
8342
8343
8344
8345
8346
8347
8348
8349
8350
8351
8352
8353
8354
8355
8356
8357
8358
8359
8360
8361
8362
8363
8364
8365
8366
8367
8368
8369
8370
8371
8372
8373
8374
8375
8376
8377
8378
8379
8380
8381
8382
8383
8384
8385
8386
8387
8388
8389
8390
8391
8392
8393
8394
8395
8396
8397
8398
8399
8400
8401
8402
8403
8404
8405
8406
8407
8408
8409
8410
8411
8412
8413
8414
8415
8416
8417
8418
8419
8420
8421
8422
8423
8424
8425
8426
8427
8428
8429
8430
8431
8432
8433
8434
8435
8436
8437
8438
8439
8440
8441
8442
8443
8444
8445
8446
8447
8448
8449
8450
8451
8452
8453
8454
8455
8456
8457
8458
8459
8460
8461
8462
8463
8464
8465
8466
8467
8468
8469
8470
8471
8472
8473
8474
8475
8476
8477
8478
8479
8480
8481
8482
8483
8484
8485
8486
8487
8488
8489
8490
8491
8492
8493
8494
8495
8496
8497
8498
8499
8500
8501
8502
8503
8504
8505
8506
8507
8508
8509
8510
8511
8512
8513
8514
8515
8516
8517
8518
8519
8520
8521
8522
8523
8524
8525
8526
8527
8528
8529
8530
8531
8532
8533
8534
8535
8536
8537
8538
8539
8540
8541
8542
8543
8544
8545
8546
8547
8548
8549
8550
8551
8552
8553
8554
8555
8556
8557
8558
8559
8560
8561
8562
8563
8564
8565
8566
8567
8568
8569
8570
8571
8572
8573
8574
8575
8576
8577
8578
8579
8580
8581
8582
8583
8584
8585
8586
8587
8588
8589
8590
8591
8592
8593
8594
8595
8596
8597
8598
8599
8600
8601
8602
8603
8604
8605
8606
8607
8608
8609
8610
8611
8612
8613
8614
8615
8616
8617
8618
8619
8620
8621
8622
8623
8624
8625
8626
8627
8628
8629
8630
8631
8632
8633
8634
8635
8636
8637
8638
8639
8640
8641
8642
8643
8644
8645
8646
8647
8648
8649
8650
8651
8652
8653
8654
8655
8656
8657
8658
8659
8660
8661
8662
8663
8664
8665
8666
8667
8668
8669
8670
8671
8672
8673
8674
8675
8676
8677
8678
8679
8680
8681
8682
8683
8684
8685
8686
8687
8688
8689
8690
8691
8692
8693
8694
8695
8696
8697
8698
8699
8700
8701
8702
8703
8704
8705
8706
8707
8708
8709
8710
8711
8712
8713
8714
8715
8716
8717
8718
8719
8720
8721
8722
8723
8724
8725
8726
8727
8728
8729
8730
8731
8732
8733
8734
8735
8736
8737
8738
8739
8740
8741
8742
8743
8744
8745
8746
8747
8748
8749
8750
8751
8752
8753
8754
8755
8756
8757
8758
8759
8760
8761
8762
8763
8764
8765
8766
8767
8768
8769
8770
8771
8772
8773
8774
8775
8776
8777
8778
8779
8780
8781
8782
8783
8784
8785
8786
8787
8788
8789
8790
8791
8792
8793
8794
8795
8796
8797
8798
8799
8800
8801
8802
8803
8804
8805
8806
8807
8808
8809
8810
8811
8812
8813
8814
8815
8816
8817
8818
8819
8820
8821
8822
8823
8824
8825
8826
8827
8828
8829
8830
8831
8832
8833
8834
8835
8836
8837
8838
8839
8840
8841
8842
8843
8844
8845
8846
8847
8848
8849
8850
8851
8852
8853
8854
8855
8856
8857
8858
8859
8860
8861
8862
8863
8864
8865
8866
8867
8868
8869
8870
8871
8872
8873
8874
8875
8876
8877
8878
8879
8880
8881
8882
8883
8884
8885
8886
8887
8888
8889
8890
8891
8892
8893
8894
8895
8896
8897
8898
8899
8900
8901
8902
8903
8904
8905
8906
8907
8908
8909
8910
8911
8912
8913
8914
8915
8916
8917
8918
8919
8920
8921
8922
8923
8924
8925
8926
8927
8928
8929
8930
8931
8932
8933
8934
8935
8936
8937
8938
8939
8940
8941
8942
8943
8944
8945
8946
8947
8948
8949
8950
8951
8952
8953
8954
8955
8956
8957
8958
8959
8960
8961
8962
8963
8964
8965
8966
8967
8968
8969
8970
8971
8972
8973
8974
8975
8976
8977
8978
8979
8980
8981
8982
8983
8984
8985
8986
8987
8988
8989
8990
8991
8992
8993
8994
8995
8996
8997
8998
8999
9000
9001
9002
9003
9004
9005
9006
9007
9008
9009
9010
9011
9012
9013
9014
9015
9016
9017
9018
9019
9020
9021
9022
9023
9024
9025
9026
9027
9028
9029
9030
9031
9032
9033
9034
9035
9036
9037
9038
9039
9040
9041
9042
9043
9044
9045
9046
9047
9048
9049
9050
9051
9052
9053
9054
9055
9056
9057
9058
9059
9060
9061
9062
9063
9064
9065
9066
9067
9068
9069
9070
9071
9072
9073
9074
9075
9076
9077
9078
9079
9080
9081
9082
9083
9084
9085
9086
9087
9088
9089
9090
9091
9092
9093
9094
9095
9096
9097
9098
9099
9100
9101
9102
9103
9104
9105
9106
9107
9108
9109
9110
9111
9112
9113
9114
9115
9116
9117
9118
9119
9120
9121
9122
9123
9124
9125
9126
9127
9128
9129
9130
9131
9132
9133
9134
9135
9136
9137
9138
9139
9140
9141
9142
9143
9144
9145
9146
9147
9148
9149
9150
9151
9152
9153
9154
9155
9156
9157
9158
9159
9160
9161
9162
9163
9164
9165
9166
9167
9168
9169
9170
9171
9172
9173
9174
9175
9176
9177
9178
9179
9180
9181
9182
9183
9184
9185
9186
9187
9188
9189
9190
9191
9192
9193
9194
9195
9196
9197
9198
9199
9200
9201
9202
9203
9204
9205
9206
9207
9208
9209
9210
9211
9212
9213
9214
9215
9216
9217
9218
9219
9220
9221
9222
9223
9224
9225
9226
9227
9228
9229
9230
9231
9232
9233
9234
9235
9236
9237
9238
9239
9240
9241
9242
9243
9244
9245
9246
9247
9248
9249
9250
9251
9252
9253
9254
9255
9256
9257
9258
9259
9260
9261
9262
9263
9264
9265
9266
9267
9268
9269
9270
9271
9272
9273
9274
9275
9276
9277
9278
9279
9280
9281
9282
9283
9284
9285
9286
9287
9288
9289
9290
9291
9292
9293
9294
9295
9296
9297
9298
9299
9300
9301
9302
9303
9304
9305
9306
9307
9308
9309
9310
9311
9312
9313
9314
9315
9316
9317
9318
9319
9320
9321
9322
9323
9324
9325
9326
9327
9328
9329
9330
9331
9332
9333
9334
9335
9336
9337
9338
9339
9340
9341
9342
9343
9344
9345
9346
9347
9348
9349
9350
9351
9352
9353
9354
9355
9356
9357
9358
9359
9360
9361
9362
9363
9364
9365
9366
9367
9368
9369
9370
9371
9372
9373
9374
9375
9376
9377
9378
9379
9380
9381
9382
9383
9384
9385
9386
9387
9388
9389
9390
9391
9392
9393
9394
9395
9396
9397
9398
9399
9400
9401
9402
9403
9404
9405
9406
9407
9408
9409
9410
9411
9412
9413
9414
9415
9416
9417
9418
9419
9420
9421
9422
9423
9424
9425
9426
9427
9428
9429
9430
9431
9432
9433
9434
9435
9436
9437
9438
9439
9440
9441
9442
9443
9444
9445
9446
9447
9448
9449
9450
9451
9452
9453
9454
9455
9456
9457
9458
9459
9460
9461
9462
9463
9464
9465
9466
9467
9468
9469
9470
9471
9472
9473
9474
9475
9476
9477
9478
9479
9480
9481
9482
9483
9484
9485
9486
9487
9488
9489
9490
9491
9492
9493
9494
9495
9496
9497
9498
9499
9500
9501
9502
9503
9504
9505
9506
9507
9508
9509
9510
9511
9512
9513
9514
9515
9516
9517
9518
9519
9520
9521
9522
9523
9524
9525
9526
9527
9528
9529
9530
9531
9532
9533
9534
9535
9536
9537
9538
9539
9540
9541
9542
9543
9544
9545
9546
9547
9548
9549
9550
9551
9552
9553
9554
9555
9556
9557
9558
9559
9560
9561
9562
9563
9564
9565
9566
9567
9568
9569
9570
9571
9572
9573
9574
9575
9576
9577
9578
9579
9580
9581
9582
9583
9584
9585
9586
9587
9588
9589
9590
9591
9592
9593
9594
9595
9596
9597
9598
9599
9600
9601
9602
9603
9604
9605
9606
9607
9608
9609
9610
9611
9612
9613
9614
9615
9616
9617
9618
9619
9620
9621
9622
9623
9624
9625
9626
9627
9628
9629
9630
9631
9632
9633
9634
9635
9636
9637
9638
9639
9640
9641
9642
9643
9644
9645
9646
9647
9648
9649
9650
9651
9652
9653
9654
9655
9656
9657
9658
9659
9660
9661
9662
9663
9664
9665
9666
9667
9668
9669
9670
9671
9672
9673
9674
9675
9676
9677
9678
9679
9680
9681
9682
9683
9684
9685
9686
9687
9688
9689
9690
9691
9692
9693
9694
9695
9696
9697
9698
9699
9700
9701
9702
9703
9704
9705
9706
9707
9708
9709
9710
9711
9712
9713
9714
9715
9716
9717
9718
9719
9720
9721
9722
9723
9724
9725
9726
9727
9728
9729
9730
9731
9732
9733
9734
9735
9736
9737
9738
9739
9740
9741
9742
9743
9744
9745
9746
9747
9748
9749
9750
9751
9752
9753
9754
9755
9756
9757
9758
9759
9760
9761
9762
9763
9764
9765
9766
9767
9768
9769
9770
9771
9772
9773
9774
9775
9776
9777
9778
9779
9780
9781
9782
9783
9784
9785
9786
9787
9788
9789
9790
9791
9792
9793
9794
9795
9796
9797
9798
9799
9800
9801
9802
9803
9804
9805
9806
9807
9808
9809
9810
9811
9812
9813
9814
9815
9816
9817
9818
9819
9820
9821
9822
9823
9824
9825
9826
9827
9828
9829
9830
9831
9832
9833
9834
9835
9836
9837
9838
9839
9840
9841
9842
9843
9844
9845
9846
9847
9848
9849
9850
9851
9852
9853
9854
9855
9856
9857
9858
9859
9860
9861
9862
9863
9864
9865
9866
9867
9868
9869
9870
9871
9872
9873
9874
9875
9876
9877
9878
9879
9880
9881
9882
9883
9884
9885
9886
9887
9888
9889
9890
9891
9892
9893
9894
9895
9896
9897
9898
9899
9900
9901
9902
9903
9904
9905
9906
9907
9908
9909
9910
9911
9912
9913
9914
9915
9916
9917
9918
9919
9920
9921
9922
9923
9924
9925
9926
9927
9928
9929
9930
9931
9932
9933
9934
9935
9936
9937
9938
9939
9940
9941
9942
9943
9944
9945
9946
9947
9948
9949
9950
9951
9952
9953
9954
9955
9956
9957
9958
9959
9960
9961
9962
9963
9964
9965
9966
9967
9968
9969
9970
9971
9972
9973
9974
9975
9976
9977
9978
9979
9980
9981
9982
9983
9984
9985
9986
9987
9988
9989
9990
9991
9992
9993
9994
9995
9996
9997
9998
9999
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
10013
10014
10015
10016
10017
10018
10019
10020
10021
10022
10023
10024
10025
10026
10027
10028
10029
10030
10031
10032
10033
10034
10035
10036
10037
10038
10039
10040
10041
10042
10043
10044
10045
10046
10047
10048
10049
10050
10051
10052
10053
10054
10055
10056
10057
10058
10059
10060
10061
10062
10063
10064
10065
10066
10067
10068
10069
10070
10071
10072
10073
10074
10075
10076
10077
10078
10079
10080
10081
10082
10083
10084
10085
10086
10087
10088
10089
10090
10091
10092
10093
10094
10095
10096
10097
10098
10099
10100
10101
10102
10103
10104
10105
10106
10107
10108
10109
10110
10111
10112
10113
10114
10115
10116
10117
10118
10119
10120
10121
10122
10123
10124
10125
10126
10127
10128
10129
10130
10131
10132
10133
10134
10135
10136
10137
10138
10139
10140
10141
10142
10143
10144
10145
10146
10147
10148
10149
10150
10151
10152
10153
10154
10155
10156
10157
10158
10159
10160
10161
10162
10163
10164
10165
10166
10167
10168
10169
10170
10171
10172
10173
10174
10175
10176
10177
10178
10179
10180
10181
10182
10183
10184
10185
10186
10187
10188
10189
10190
10191
10192
10193
10194
10195
10196
10197
10198
10199
10200
10201
10202
10203
10204
10205
10206
10207
10208
10209
10210
10211
10212
10213
10214
10215
10216
10217
10218
10219
10220
10221
10222
10223
10224
10225
10226
10227
10228
10229
10230
10231
10232
10233
10234
10235
10236
10237
10238
10239
10240
10241
10242
10243
10244
10245
10246
10247
10248
10249
10250
10251
10252
10253
10254
10255
10256
10257
10258
10259
10260
10261
10262
10263
10264
10265
10266
10267
10268
10269
10270
10271
10272
10273
10274
10275
10276
10277
10278
10279
10280
10281
10282
10283
10284
10285
10286
10287
10288
10289
10290
10291
10292
10293
10294
10295
10296
10297
10298
10299
10300
10301
10302
10303
10304
10305
10306
10307
10308
10309
10310
10311
10312
10313
10314
10315
10316
10317
10318
10319
10320
10321
10322
10323
10324
10325
10326
10327
10328
10329
10330
10331
10332
10333
10334
10335
10336
10337
10338
10339
10340
10341
10342
10343
10344
10345
10346
10347
10348
10349
10350
10351
10352
10353
10354
10355
10356
10357
10358
10359
10360
10361
10362
10363
10364
10365
10366
10367
10368
10369
10370
10371
10372
10373
10374
10375
10376
10377
10378
10379
10380
10381
10382
10383
10384
10385
10386
10387
10388
10389
10390
10391
10392
10393
10394
10395
10396
10397
10398
10399
10400
10401
10402
10403
10404
10405
10406
10407
10408
10409
10410
10411
10412
10413
10414
10415
10416
10417
10418
10419
10420
10421
10422
10423
10424
10425
10426
10427
10428
10429
10430
10431
10432
10433
10434
10435
10436
10437
10438
10439
10440
10441
10442
10443
10444
10445
10446
10447
10448
10449
10450
10451
10452
10453
10454
10455
10456
10457
10458
10459
10460
10461
10462
10463
10464
10465
10466
10467
10468
10469
10470
10471
10472
10473
10474
10475
10476
10477
10478
10479
10480
10481
10482
10483
10484
10485
10486
10487
10488
10489
10490
10491
10492
10493
10494
10495
10496
10497
10498
10499
10500
10501
10502
10503
10504
10505
10506
10507
10508
10509
10510
10511
10512
10513
10514
10515
10516
10517
10518
10519
10520
10521
10522
10523
10524
10525
10526
10527
10528
10529
10530
10531
10532
10533
10534
10535
10536
10537
10538
10539
10540
10541
10542
10543
10544
10545
10546
10547
10548
10549
10550
10551
10552
10553
10554
10555
10556
10557
10558
10559
10560
10561
10562
10563
10564
10565
10566
10567
10568
10569
10570
10571
10572
10573
10574
10575
10576
10577
10578
10579
10580
10581
10582
10583
10584
10585
10586
10587
10588
10589
10590
10591
10592
10593
10594
10595
10596
10597
10598
10599
10600
10601
10602
10603
10604
10605
10606
10607
10608
10609
10610
10611
10612
10613
10614
10615
10616
10617
10618
10619
10620
10621
10622
10623
10624
10625
10626
10627
10628
10629
10630
10631
10632
10633
10634
10635
10636
10637
10638
10639
10640
10641
10642
10643
10644
10645
10646
10647
10648
10649
10650
10651
10652
10653
10654
10655
10656
10657
10658
10659
10660
10661
10662
10663
10664
10665
10666
10667
10668
10669
10670
10671
10672
10673
10674
10675
10676
10677
10678
10679
10680
10681
10682
10683
10684
10685
10686
10687
10688
10689
10690
10691
10692
10693
10694
10695
10696
10697
10698
10699
10700
10701
10702
10703
10704
10705
10706
10707
10708
10709
10710
10711
10712
10713
10714
10715
10716
10717
10718
10719
10720
10721
10722
10723
10724
10725
10726
10727
10728
10729
10730
10731
10732
10733
10734
10735
10736
10737
10738
10739
10740
10741
10742
10743
10744
10745
10746
10747
10748
10749
10750
10751
10752
10753
10754
10755
10756
10757
10758
10759
10760
10761
10762
10763
10764
10765
10766
10767
10768
10769
10770
10771
10772
10773
10774
10775
10776
10777
10778
10779
10780
10781
10782
10783
10784
10785
10786
10787
10788
10789
10790
10791
10792
10793
10794
10795
10796
10797
10798
10799
10800
10801
10802
10803
10804
10805
10806
10807
10808
10809
10810
10811
10812
10813
10814
10815
10816
10817
10818
10819
10820
10821
10822
10823
10824
10825
10826
10827
10828
10829
10830
10831
10832
10833
10834
10835
10836
10837
10838
10839
10840
10841
10842
10843
10844
10845
10846
10847
10848
10849
10850
10851
10852
10853
10854
10855
10856
10857
10858
10859
10860
10861
10862
10863
10864
10865
10866
10867
10868
10869
10870
10871
10872
10873
10874
10875
10876
10877
10878
10879
10880
10881
10882
10883
10884
10885
10886
10887
10888
10889
10890
10891
10892
10893
10894
10895
10896
10897
10898
10899
10900
10901
10902
10903
10904
10905
10906
10907
10908
10909
10910
10911
10912
10913
10914
10915
10916
10917
10918
10919
10920
10921
10922
10923
10924
10925
10926
10927
10928
10929
10930
10931
10932
10933
10934
10935
10936
10937
10938
10939
10940
10941
10942
10943
10944
10945
10946
10947
10948
10949
10950
10951
10952
10953
10954
10955
10956
10957
10958
10959
10960
10961
10962
10963
10964
10965
10966
10967
10968
10969
10970
10971
10972
10973
10974
10975
10976
10977
10978
10979
10980
10981
10982
10983
10984
10985
10986
10987
10988
10989
10990
10991
10992
10993
10994
10995
10996
10997
10998
10999
11000
11001
11002
11003
11004
11005
11006
11007
11008
11009
11010
11011
11012
11013
11014
11015
11016
11017
11018
11019
11020
11021
11022
11023
11024
11025
11026
11027
11028
11029
11030
11031
11032
11033
11034
11035
11036
11037
11038
11039
11040
11041
11042
11043
11044
11045
11046
11047
11048
11049
11050
11051
11052
11053
11054
11055
11056
11057
11058
11059
11060
11061
11062
11063
11064
11065
11066
11067
11068
11069
11070
11071
11072
11073
11074
11075
11076
11077
11078
11079
11080
11081
11082
11083
11084
11085
11086
11087
11088
11089
11090
11091
11092
11093
11094
11095
11096
11097
11098
11099
11100
11101
11102
11103
11104
11105
11106
11107
11108
11109
11110
11111
11112
11113
11114
11115
11116
11117
11118
11119
11120
11121
11122
11123
11124
11125
11126
11127
11128
11129
11130
11131
11132
11133
11134
11135
11136
11137
11138
11139
11140
11141
11142
11143
11144
11145
11146
11147
11148
11149
11150
11151
11152
11153
11154
11155
11156
11157
11158
11159
11160
11161
11162
11163
11164
11165
11166
11167
11168
11169
11170
11171
11172
11173
11174
11175
11176
11177
11178
11179
11180
11181
11182
11183
11184
11185
11186
11187
11188
11189
11190
11191
11192
11193
11194
11195
11196
11197
11198
11199
11200
11201
11202
11203
11204
11205
11206
11207
11208
11209
11210
11211
11212
11213
11214
11215
11216
11217
11218
11219
11220
11221
11222
11223
11224
11225
11226
11227
11228
11229
11230
11231
11232
11233
11234
11235
11236
11237
11238
11239
11240
11241
11242
11243
11244
11245
11246
11247
11248
11249
11250
11251
11252
11253
11254
11255
11256
11257
11258
11259
11260
11261
11262
11263
11264
11265
11266
11267
11268
11269
11270
11271
11272
11273
11274
11275
11276
11277
11278
11279
11280
11281
11282
11283
11284
11285
11286
11287
11288
11289
11290
11291
11292
11293
11294
11295
11296
11297
11298
11299
11300
11301
11302
11303
11304
11305
11306
11307
11308
11309
11310
11311
11312
11313
11314
11315
11316
11317
11318
11319
11320
11321
11322
11323
11324
11325
11326
11327
11328
11329
11330
11331
11332
11333
11334
11335
11336
11337
11338
11339
11340
11341
11342
11343
11344
11345
11346
11347
11348
11349
11350
11351
11352
11353
11354
11355
11356
11357
11358
11359
11360
11361
11362
11363
11364
11365
11366
11367
11368
11369
11370
11371
11372
11373
11374
11375
11376
11377
11378
11379
11380
11381
11382
11383
11384
11385
11386
11387
11388
11389
11390
11391
11392
11393
11394
11395
11396
11397
11398
11399
11400
11401
11402
11403
11404
11405
11406
11407
11408
11409
11410
11411
11412
11413
11414
11415
11416
11417
11418
11419
11420
11421
11422
11423
11424
11425
11426
11427
11428
11429
11430
11431
11432
11433
11434
11435
11436
11437
11438
11439
11440
11441
11442
11443
11444
11445
11446
11447
11448
11449
11450
11451
11452
11453
11454
11455
11456
11457
11458
11459
11460
11461
11462
11463
11464
11465
11466
11467
11468
11469
11470
11471
11472
11473
11474
11475
11476
11477
11478
11479
11480
11481
11482
11483
11484
11485
11486
11487
11488
11489
11490
11491
11492
11493
11494
11495
11496
11497
11498
11499
11500
11501
11502
11503
11504
11505
11506
11507
11508
11509
11510
11511
11512
11513
11514
11515
11516
11517
11518
11519
11520
11521
11522
11523
11524
11525
11526
11527
11528
11529
11530
11531
11532
11533
11534
11535
11536
11537
11538
11539
11540
11541
11542
11543
11544
11545
11546
11547
11548
11549
11550
11551
11552
11553
11554
11555
11556
11557
11558
11559
11560
11561
11562
11563
11564
11565
11566
11567
11568
11569
11570
11571
11572
11573
11574
11575
11576
11577
11578
11579
11580
11581
11582
11583
11584
11585
11586
11587
11588
11589
11590
11591
11592
11593
11594
11595
11596
11597
11598
11599
11600
11601
11602
11603
11604
11605
11606
11607
11608
11609
11610
11611
11612
11613
11614
11615
11616
11617
11618
11619
11620
11621
11622
11623
11624
11625
11626
11627
11628
11629
11630
11631
11632
11633
11634
11635
11636
11637
11638
11639
11640
11641
11642
11643
11644
11645
11646
11647
11648
11649
11650
11651
11652
11653
11654
11655
11656
11657
11658
11659
11660
11661
11662
11663
11664
11665
11666
11667
11668
11669
11670
11671
11672
11673
11674
11675
11676
11677
11678
11679
11680
11681
11682
11683
11684
11685
11686
11687
11688
11689
11690
11691
11692
11693
11694
11695
11696
11697
11698
11699
11700
11701
11702
11703
11704
11705
11706
11707
11708
11709
11710
11711
11712
11713
11714
11715
11716
11717
11718
11719
11720
11721
11722
11723
11724
11725
11726
11727
11728
11729
11730
11731
11732
11733
11734
11735
11736
11737
11738
11739
11740
11741
11742
11743
11744
11745
11746
11747
11748
11749
11750
11751
11752
11753
11754
11755
11756
11757
11758
11759
11760
11761
11762
11763
11764
11765
11766
11767
11768
11769
11770
11771
11772
11773
11774
11775
11776
11777
11778
11779
11780
11781
11782
11783
11784
11785
11786
11787
11788
11789
11790
11791
11792
11793
11794
11795
11796
11797
11798
11799
11800
11801
11802
11803
11804
11805
11806
11807
11808
11809
11810
11811
11812
11813
11814
11815
11816
11817
11818
11819
11820
11821
11822
11823
11824
11825
11826
11827
11828
11829
11830
11831
11832
11833
11834
11835
11836
11837
11838
11839
11840
11841
11842
11843
11844
11845
11846
11847
11848
11849
11850
11851
11852
11853
11854
11855
11856
11857
11858
11859
11860
11861
11862
11863
11864
11865
11866
11867
11868
11869
11870
11871
11872
11873
11874
11875
11876
11877
11878
11879
11880
11881
11882
11883
11884
11885
11886
11887
11888
11889
11890
11891
11892
11893
11894
11895
11896
11897
11898
11899
11900
11901
11902
11903
11904
11905
11906
11907
11908
11909
11910
11911
11912
11913
11914
11915
11916
11917
11918
11919
11920
11921
11922
11923
11924
11925
11926
11927
11928
11929
11930
11931
11932
11933
11934
11935
11936
11937
11938
11939
11940
11941
11942
11943
11944
11945
11946
11947
11948
11949
11950
11951
11952
11953
11954
11955
11956
11957
11958
11959
11960
11961
11962
11963
11964
11965
11966
11967
11968
11969
11970
11971
11972
11973
11974
11975
11976
11977
11978
11979
11980
11981
11982
11983
11984
11985
11986
11987
11988
11989
11990
11991
11992
11993
11994
11995
11996
11997
11998
11999
12000
12001
12002
12003
12004
12005
12006
12007
12008
12009
12010
12011
12012
12013
12014
12015
12016
12017
12018
12019
12020
12021
12022
12023
12024
12025
12026
12027
12028
12029
12030
12031
12032
12033
12034
12035
12036
12037
12038
12039
12040
12041
12042
12043
12044
12045
12046
12047
12048
12049
12050
12051
12052
12053
12054
12055
12056
12057
12058
12059
12060
12061
12062
12063
12064
12065
12066
12067
12068
12069
12070
12071
12072
12073
12074
12075
12076
12077
12078
12079
12080
12081
12082
12083
12084
12085
12086
12087
12088
12089
12090
12091
12092
12093
12094
12095
12096
12097
12098
12099
12100
12101
12102
12103
12104
12105
12106
12107
12108
12109
12110
12111
12112
12113
12114
12115
12116
12117
12118
12119
12120
12121
12122
12123
12124
12125
12126
12127
12128
12129
12130
12131
12132
12133
12134
12135
12136
12137
12138
12139
12140
12141
12142
12143
12144
12145
12146
12147
12148
12149
12150
12151
12152
12153
12154
12155
12156
12157
12158
12159
12160
12161
12162
12163
12164
12165
12166
12167
12168
12169
12170
12171
12172
12173
12174
12175
12176
12177
12178
12179
12180
12181
12182
12183
12184
12185
12186
12187
12188
12189
12190
12191
12192
12193
12194
12195
12196
12197
12198
12199
12200
12201
12202
12203
12204
12205
12206
12207
12208
12209
12210
12211
12212
12213
12214
12215
12216
12217
12218
12219
12220
12221
12222
12223
12224
12225
12226
12227
12228
12229
12230
12231
12232
12233
12234
12235
12236
12237
12238
12239
12240
12241
12242
12243
12244
12245
12246
12247
12248
12249
12250
12251
12252
12253
12254
12255
12256
12257
12258
12259
12260
12261
12262
12263
12264
12265
12266
12267
12268
12269
12270
12271
12272
12273
12274
12275
12276
12277
12278
12279
12280
12281
12282
12283
12284
12285
12286
12287
12288
12289
12290
12291
12292
12293
12294
12295
12296
12297
12298
12299
12300
12301
12302
12303
12304
12305
12306
12307
12308
12309
12310
12311
12312
12313
12314
12315
12316
12317
12318
12319
12320
12321
12322
12323
12324
12325
12326
12327
12328
12329
12330
12331
12332
12333
12334
12335
12336
12337
12338
12339
12340
12341
12342
12343
12344
12345
12346
12347
12348
12349
12350
12351
12352
12353
12354
12355
12356
12357
12358
12359
12360
12361
12362
12363
12364
12365
12366
12367
12368
12369
12370
12371
12372
12373
12374
12375
12376
12377
12378
12379
12380
12381
12382
12383
12384
12385
12386
12387
12388
12389
12390
12391
12392
12393
12394
12395
12396
12397
12398
12399
12400
12401
12402
12403
12404
12405
12406
12407
12408
12409
12410
12411
12412
12413
12414
12415
12416
12417
12418
12419
12420
12421
12422
12423
12424
12425
12426
12427
12428
12429
12430
12431
12432
12433
12434
12435
12436
12437
12438
12439
12440
12441
12442
12443
12444
12445
12446
12447
12448
12449
12450
12451
12452
12453
12454
12455
12456
12457
12458
12459
12460
12461
12462
12463
12464
12465
12466
12467
12468
12469
12470
12471
12472
12473
12474
12475
12476
12477
12478
12479
12480
12481
12482
12483
12484
12485
12486
12487
12488
12489
12490
12491
12492
12493
12494
12495
12496
12497
12498
12499
12500
12501
12502
12503
12504
12505
12506
12507
12508
12509
12510
12511
12512
12513
12514
12515
12516
12517
12518
12519
12520
12521
12522
12523
12524
12525
12526
12527
12528
12529
12530
12531
12532
12533
12534
12535
12536
12537
12538
Changes with Apache 2.0.44

  *) mod_autoindex: Bring forward the IndexOptions IgnoreCase option
     from Apache 1.3.  PR 14276
     [David Shane Holden <dpejesh@yahoo.com>, William Rowe]

  *) mod_mime: Workaround to prevent a segfault if r->filename=NULL
     [Brian Pane]
 
  *) Reorder the definitions for mod_ldap and mod_auth_ldap within
     config.m4 to make sure the parent mod_ldap is defined first.
     This ensures that mod_ldap comes before mod_auth_ldap in the
     httpd.conf file, which is necessary for mod_auth_ldap to load.
     PR 14256  [Graham Leggett]

  *) Fix the building of cgi command lines when the query string
     contains '='.  PR 13914  [Ville Skyttä <ville.skytta@iki.fi>,
     Jeff Trawick]

  *) Rename CacheMaxStreamingBuffer to MCacheMaxStreamingBuffer. Move
     implementation of MCacheMaxStreamingBuffer from mod_cache to
     mod_mem_cache. MCacheMaxStreamingBuffer now defaults to the
     lesser of 100,000 bytes or MCacheMaxCacheObjectSize. This should 
     eliminate the need for explicitly coding MCacheMaxStreamingBuffer
     in most configurations. [Bill Stoddard]

  *) Replace APU_HAS_LDAPSSL_CLIENT_INIT with APU_HAS_LDAP_NETSCAPE_SSL
     as set by apr-util in util_ldap.c. This should allow mod_ldap
     to work with the Netscape/Mozilla LDAP library. [Řyvin Sřmme
     <somme@oslo.westerngeco.slb.com>, Graham Leggett]

  *) Fix critical bug in new --enable-v4-mapped configure option
     implementation which broke IPv4 listening sockets on some
     systems.  [hiroyuki hanai <hanai@imgsrc.co.jp>]

  *) mod_setenvif: Fix BrowserMatchNoCase support for non-regex
     patterns [André Malo <nd@perlig.de>]

  *) Add version string to provider API.  [Justin Erenkrantz]
 
  *) mod_negotiation: Set the appropriate mime response headers
     (Content-Type, charset, Content-Language and Content-Encoding)
     for negotated type-map "Body:" responses (such as the error
     pages.)  [André Malo <nd@perlig.de>]

  *) mod_log_config: Allow '%%' escaping in CustomLog format
     strings to insert a literal, single '%'.
     [André Malo <nd@perlig.de>]

  *) mod_autoindex: AddDescription directives for directories
     now work as in Apache 1.3, where no trailing '/' is
     specified on the directory name.  Previously, the trailing
     '/' *had* to be specified, which was incompatible with
     Apache 1.3.  PR 7990  [Jeff Trawick]

  *) Fix for PR 14556. The expiry calculations in mod_cache were
     trying to perform "now + ((date - lastmod) * factor)" where
     date == lastmod resulting in "now + 0". The code now follows
     the else path (using the default expiration) if date is
     equal to lastmod. [rx@armstrike.com (Sergey), Paul J. Reder]

  *) Use AP_DECLARE in the debug versions of ap_strXXX in case the
     default calling convention is not the same as the one used by
     AP_DECLARE.  [Juan Rivera <Juan.Rivera@citrix.com>]

  *) mod_cache: Don't cache response header fields designated
     as hop-by-hop headers in HTTP/1.1 (RFC 2616 Section 13.5.1).
     [Estrade Matthieu <estrade-m@ifrance.com>, Brian Pane]

  *) mod_cgid: Handle environment variables containing newlines.
     PR 14550  [Piotr Czejkowski <apache@czarny.eu.org>, Jeff
     Trawick]

  *) Move mod_ext_filter out of experimental and into filters.
     [Jeff Trawick]

  *) Fixed a memory leak in mod_deflate with dynamic content.
     PR 14321  [Ken Franken <kfranken@decisionmark.com>]

  *) Add --[enable|disable]-v4-mapped configure option to control
     whether or not Apache expects to handle IPv4 connections
     on IPv6 listening sockets.  Either setting will work on 
     systems with the IPV6_V6ONLY socket option.  --enable-v4-mapped
     must be used on systems that always allow IPv4 connections on
     IPv6 listening sockets.  PR 14037 (Bugzilla), PR 7492 (Gnats)
     [Jeff Trawick]

  *) This fixes a problem where the underlying cache code
     indicated that there was one more element on the cache
     than there actually was. This happened since element 0
     exists but is not used. This code allocates the correct
     number of useable elements and reports the number of
     actually used elements. The previous code only allowed
     MCacheMaxObjectCount-1 objects to be stored in the
     cache. [Paul J. Reder]

  *) mod_setenvif: Add SERVER_ADDR special keyword to allow
     envariable setting according to the server IP address
     which received the request.  [Ken Coar]

  *) mod_cgid: Terminate CGI scripts when the client connection 
     drops.  PR 8388  [Jeff Trawick]

  *) Rearrange OpenSSL engine initialization to support RAND 
     redirection on crypto accelerator. 
     [Frederic DONNAT <frederic.donnat@zencod.com>]

  *) Always emit Vary header if mod_deflate is involved in the
     request.  [Andre Malo <nd@perlig.de>]

  *) mod_isapi: Stop unsetting the 'empty' query string result with
     a NULL argument in ecb->lpszQueryString, eliminating segfaults
     for some ISAPI modules.  PR 14399
     [Detlev Vendt <detlev.vendt@brillit.de>]

  *) mod_isapi: Fix an issue where the HSE_REQ_DONE_WITH_SESSION
     notification is received before the HttpExtensionProc() returns 
     HSE_STATUS_PENDING.  This only affected isapi .dll's configured 
     with the ISAPIFakeAsync on directive.  PR 11918
     [John DeSetto <jdesetto@radiantsystems.com>, William Rowe]

  *) mod_isapi: Fix the issue where all results from mod_isapi would
     run through the core die handler resulting in invalid responses
     or access log entries.  PR 10216 [William Rowe]

  *) Improves the user friendliness of the CacheRoot processing
     over my last pass. This version avoids the pool allocations
     but doesn't avoid all of the runtime checks. It no longer
     terminates during post-config processing. An error is logged
     once per worker, indicating that the CacheRoot needs to be set.
     [Paul J. Reder]

  *) Fix a bug where we keep files open until the end of a 
     keepalive connection, which can result in:
     (24)Too many open files: file permissions deny server access
     especially on threaded servers.  [Greg Ames, Jeff Trawick]

  *) Fix a bug in which mod_proxy sent an invalid Content-Length
     when a proxied URL was invoked as a server-side include within
     a page generated in response to a form POST.  [Brian Pane]

  *) Added code to process min and max file size directives and to
     init the expirychk flag in mod_disk_cache. Added a clarifying
     comment to cache_util.   [Paul J. Reder]

  *) The value emitted by ServerSignature now mimics the Server HTTP
     header as controlled by ServerTokens.  [Francis Daly <deva@daoine.org>]

  *) Gracefully handly retry situations in the SSL input filter,
     by following the SSL libraries' retry semantics.
     [William Rowe]

  *) Terminate CGI scripts when the client connection drops.  This
     fix only applies to some normal paths in mod_cgi.  mod_cgid
     is still busted.  PR 8388  [Jeff Trawick]

  *) Fix a bug where 416 "Range not satisfiable" was being
     returned for content that should have been redirected.
     [Greg Ames]

  *) Fix memory leak in mod_ssl from internal SSL library allocations
     within SSL_get_peer_certificate and X509_get_pubkey.
     [Zvi Har'El <rl@math.technion.ac.il>
      Madhusudan Mathihalli <madhusudan_mathihalli@hp.com>].

  *) mod_ssl uses free() inappropriately in several places, to free
     memory which has been previously allocated inside OpenSSL.
     Such memory should be freed with OPENSSL_free(), not with free().
     [Nadav Har'El <nyh@math.technion.ac.il>,
      Madhusudan Mathihalli <madhusudan_mathihalli@hp.com>].

  *) Emit a message to the error log when we return 404 because
     the URI contained '%2f'.  (This was previously nastily silent
     and difficult to debug.)  [Ken Coar]

  *) Fix streaming output from an nph- CGI script.  CGI:IRC now
     works.  PR 8482  [Jeff Trawick]

  *) More accurate logging of bytes sent in mod_logio when
     the client terminates the connection before the response
     is completely sent  [Bojan Smojver <bojan@rexursive.com>]

  *) Fix some problems in the perchild MPM.  
     [Jonas Eriksson <jonas@webkonsulterna.com>]

  *) Change the CacheRoot processing to check for a required
     value at config time. This saves a lot of wasted processing
     if the mod_disk_cache module is loaded but no CacheRoot
     was provided. This fix also adds code to log an error
     and avoid useless pallocs and procesing when the computed
     cache file name cannot be opened. This also updates the
     docs accordingly.  [Paul J. Reder]

  *) Introduce the EnableSendfile directive, allowing users of NFS 
     shares to disable sendfile mechanics when they either fail
     outright or provide intermitantly corrupted data.  PR 
     [William Rowe]

  *) Resolve the error "An operation was attempted on something 
     that is not a socket.  : winnt_accept: AcceptEx failed. 
     Attempting to recover." for users of various firewall and
     anti-virus software on Windows.  PR 8325  [William Rowe]

  *) Add the ProxyBadHeader directive, which gives the admin some
     control on how mod_proxy should handle bogus HTTP headers from
     proxied servers. This allows 2.0 to "emulate" 1.3's behavior if
     desired. [Jim Jagielski]

  *) Change the LDAP modules to export their symbols correctly
     during a Windows build. Add dsp files for Windows. Update
     README.ldap file for Windows build instructions.
     [Andre Schild <A.Schild@aarboard.ch>]

  *) Performance improvements for the code that generates HTTP
     response headers  [Brian Pane]

  *) Add -S as a synonym for -t -DDUMP_VHOSTS.
     [Thom May <thom@planetarytramp.net>]

  *) Fix a bug with dbm rewrite maps which caused the wrong value to
     be used when the key was not found in the dbm.  PR 13204
     [Jeff Trawick]

  *) Fix a problem with streaming script output and mod_cgid.
     [Jeff Trawick]

  *) Add ap_register_provider/ap_lookup_provider API.
     [John K. Sterling <john@sterls.com>, Justin Erenkrantz]

Changes with Apache 2.0.43

  *) SECURITY: [CAN-2002-0840] HTML-escape the address produced by 
     ap_server_signature() against this cross-site scripting 
     vulnerability exposed by the directive 'UseCanonicalName Off'.  
     Also HTML-escape the SERVER_NAME environment variable for CGI 
     and SSI requests.  It's safe to escape as only the '<', '>', 
     and '&' characters are affected, which won't appear in a valid 
     hostname.  Reported by Matthew Murphy <mattmurphy@kc.rr.com>.
     [Brian Pane]

  *) Fix a core dump in mod_cache when it attemtped to store uncopyable
     buckets. This happened, for instance, when a file to be cached
     contained SSI tags to execute a CGI script (passed as a pipe
     bucket). [Paul J. Reder]

  *) Ensure that output already available is flushed to the network
     when the content-length filter realizes that no new output will
     be available for a while.  This helps some streaming CGIs as
     well as some other dynamically-generated content.  [Jeff Trawick]

  *) Fix a mutex problem in mod_ssl session cache support which
     could lead to an infinite loop.  PR 12705  
     [amund.elstad@ergo.no (Amund Elstad), Jeff Trawick]

  *) SECURITY: CAN-2002-1156 (cve.mitre.org)
      Fix the exposure of CGI source when a POST request is sent to 
      a location where both DAV and CGI are enabled. [Ryan Bloom]

  *) Allow the UserDir directive to accept a list of directories.
     This matches what Apache 1.3 does.  Also add documentation for
     this feature. [Jay Ball <jay@veggiespam.com>]

  *) New Module: mod_logio. adds the ability to log bytes sent and
     received. [Bojan Smojver <bojan@rexursive.com>]

  *) SuExec needs to use the same default directory as the rest of
     server, namely /usr/local/apache2.  
     [SangBeom han <sbhan@os.korea.ac.kr>]

  *) Get mod_auth_ldap to retry connections on LDAP_SERVER_DOWN.
     [Thomas Bennett <thomas.bennett@eds.com>, Graham Leggett]

  *) Make sure the contents of the WWW-Authenticate header is
     passed on a 4xx error by proxy. Previously all headers
     were dropped, resulting in the browser being unable to
     authenticate. [Dr Richard Reiner <rreiner@fscinternet.com>,
     Richard Danielli <rdanielli@fscinternet.com>, Graham Wiseman
     <gwiseman@fscinternet.com>, David Henderson
     <dhenderson@fscinternet.com>]

  *) Make mod_cache's CacheMaxStreamingBuffer directive work
     properly for virtual hosts that override server-wide mod_cache
     setttings.  [Matthieu Estrade <estrade-m@ifrance.com>]

  *) Add -p option to apxs to allow programs to be compiled with apxs.
     [Justin Erenkrantz]

Changes with Apache 2.0.42

  *) mod_dav: Check for versioning hooks before using them.
     [Greg Stein]

Changes with Apache 2.0.41

  *) The protocol version (eg: HTTP/1.1) in the request line parsing
     is now case insensitive. [Jim Jagielski]

  *) Allow AddOutputFilterByType to add multiple filters per directive.
     [Justin Erenkrantz]

  *) Remove warnings with Sun's Forte compiler.  [Justin Erenkrantz]

  *) Fixed mod_disk_cache's generation of 304s
     [Kris Verbeeck <Kris.Verbeeck@ubizen.com>]

  *) Add support for using fnmatch patterns in the final path
     segment of an Include statement (eg.. include /foo/bar/*.conf).
     and remove the noise on stderr during config dir processing.
     [Joe Orton <jorton@redhat.com>]

  *) mod_cache: cache_storage.c. Add the hostname and any request
     args to the key generated for caching. This provides a unique
     key for each virtual host and for each request with unique
     args. [Paul J. Reder, args code provided by Kris Verbeeck]

  *) mod_cache: Do not cache responses to GET requests with query
     URLs if the origin server does not explicitly provide an
     Expires header on the response (RFC 2616 Section 13.9)
     [Kris Verbeeck krisv@be.ubizen.com]

  *) Fix memory leak in core_output_filter.  [Justin Erenkrantz]

  *) Update OpenSSL detection to work on Darwin.
     [Sander Temme <sctemme@covalent.net>]

  *) Update the xslt and css to give the documentation a more
     modern style.
     [André Malo <nd@perlig.de>, Gernot Winkler <greh@o3media.de>]

  *) Fix some bucket memory leaks in the chunking code
     [Joe Schaefer <joe+apache@sunstarsys.com>]

  *) Add ModMimeUsePathInfo directive.  [Justin Erenkrantz]

  *) mod_cache: added support for caching streamed responses (proxy,
     CGI, etc) with optional CacheMaxStreamingBuffer setting [Brian Pane]

  *) Add image/x-icon to httpd.conf PR 10993.
     [Ian Holsman, Peter Bieringer <pb@bieringer.de>]

  *) Fix FileETags none operation.  PR 12207.
     [Justin Erenkrantz, Andrew Ho <andrew@tellme.com>]

  *) Restored the experimental leader/followers MPM to working
     condition and converted its thread synchronization from
     mutexes to atomic CAS.  [Brian Pane]

  *) Fix Logic on non-html file removal in mod_deflate
     [Kris Verbeeck <Kris.Verbeeck@ubizen.com>]

  *) Fix "ab -g"'s truncated year: the last digit was cut off.
     [Leon Brocard <acme@astray.com>]

  *) mod_rewrite can now sets cookies in err_headers, uses the correct
     expiry date, and can now set the path as well
     PR 12132,12181,12172.
     [Ian Holsman / Rob Cromwell <apachechangelog@robcromwell.com>]

  *) The content-length filter no longer tries to buffer up
     the entire output of a long-running request before sending
     anything to the client.  [Brian Pane]

  *) Win32: Lower the default stack size from 1MB to 256K. This will
     allow around 8000 threads to be started per child process. 
     'EDITBIN /STACK:size apache.exe' can be used to change this 
     value directly in the apache.exe executable.
     [Bill Stoddard]

  *) Win32: Implement ThreadLimit directive in the Windows MPM.
     [Bill Stoddard]

  *) Remove CacheOn config directive since it is set but never checked.
     No sense wasting cycles on unused code. Besides, the only truly
     bug free code is deleted code. :)   [Paul J. Reder]

  *) BufferLogs are now run-time enabled, and the log_config now has 2 new
     callbacks to allow a 3rd party module to actually do the writing of the
     log file [Ian Holsman]

  *) Correct ISAPIReadAheadBuffer to default to 49152, per mod_isapi docs.
     [André Malo, Astrid Keßler <kess@kess-net.de>]

  *) Fix Segfault in mod_cache. [Kris Verbeeck <Kris.Verbeeck@ubizen.com>]

  *) Fix a null pointer dereference in the merge_env_dir_configs
     function of the mod_env module. PR 11791
     [Paul J. Reder]

  *) New option to ServerTokens 'maj[or]'. Only show the major version
     Also Surfaced this directive in the standard config (default FULL)
     [Ian Holsman]

  *) Change mod_rewrite to use apr-util's dbm support for dbm rewrite
     maps.  The dbm type (e.g., ndbm, gdbm) can be specified on the
     RewriteMap directive.  PR 10644  [Jeff Trawick]

  *) Fixed mod_rewrite's RewriteMap prg: support so that request/response
     pairs will no longer get out of sync with each other.  PR 9534
     [Cliff Woolley]

  *) Fixes required to get quoted and escaped command args working in
     mod_ext_filter. PR 11793 [Paul J. Reder]

  *) mod-proxy: handle proxied responses with no status lines
     [JD Silvester <jsilves@uwo.ca>, Brett Huttley <brett@huttley.net>]

  *) Fix bug where environment or command line arguments containing 
     non-ASCII-7 characters would cause the Win32 child process creation
     to fail.  PR 11854  [William Rowe]

  *) Bug #11213.. make module loading error messages more informative 
     [Ian Darwin <Ian779@darwinsys.com>]

  *) thread safety & proxy-ftp [Alexey Panchenko alexey@liwest.ru, Ian Holsman]

  *) mod_disk_cache works much better. This module should still
     be considered experimental. [Eric Prud'hommeaux]

  *) Performance improvement for keepalive requests: when setting
     aside a small file for potential concatenation with the next
     response on the connection, set aside the file descriptor rather
     than copying the file into the heap.  [Brian Pane]

  *) Modified version check on openssl so that it finds the executable
     first and then performs a check of the version, only warning the
     user if they chose, or we selected, an old version of OpenSSL.
     This change also allows the code to work for non-openssl libraries
     selected via the --with-ssl=dir option, which can override the
     automated library check in any case.  [Roy Fielding]

Changes with Apache 2.0.40

  *) SECURITY: [CAN-2002-0661] Close a very significant security hole that 
     applies only to the Win32, OS2 and Netware platforms.  Unix was not 
     affected, Cygwin may be affected.  Certain URIs will bypass security
     and allow users to invoke or access any file depending on the system 
     configuration.  Without upgrading, a single .conf change will close 
     the vulnerability.  Add the following directive in the global server
     httpd.conf context before any other Alias or Redirect directives;
         RedirectMatch 400 "\\\.\."
     Reported by Auriemma Luigi <bugtest@sitoverde.com>.
     [Brad Nicholes]

  *) SECURITY:  Close a path-revealing exposure in multiview type
     map negotiation (such as the default error documents) where the
     module would report the full path of the typemapped .var file when
     multiple documents or no documents could be served based on the mime
     negotiation.  Reported by Auriemma Luigi <bugtest@sitoverde.com>.
     [CAN-2002-0654]  [William Rowe]

  *) SECURITY:  Close a path-revealing exposure in cgi/cgid when we 
     fail to invoke a script.  The modules would report "couldn't create 
     child process /path-to-script/script.pl" revealing the full path
     of the script.  Reported by Jim Race <jrace@qualys.com>.
     [CAN-2002-0654]  [Bill Stoddard]

  *) Set aside the apr-iconv and apr_xlate() features for the Win32
     build of 2.0.40 so development can be completed.  A patch, from
     <http://www.apache.org/dist/httpd/patches/apply_to_2.0.40/>
     will be available for those that wish to work with apr-iconv.
     [William Rowe]

  *) Fix proxy so that it is possible to access ftp: URLs via a proxy
     chain. [Peter Van Biesen <peter.vanbiesen@vlafo.be>]

  *) mod-deflate now checks to make sure that 'gzip-only-text/html' is
     set to 1, so we can exclude things from the general case with
     browsermatch. [Ian Holsman, Andre Schild <A.Schild@aarboard.ch>]
  
  *) Accept multiple leading /'s for requests within the DocumentRoot.
     PR 10946  [William Rowe, David Shane Holden <dpejesh@yahoo.com>]

  *) Solved the reports of .pdf byterange failures on Win32 alone.
     APR's sendfile for the win32 platform collapses header and trailer
     buffers into a single buffer.  However, we destroyed the pointers
     to the header buffer if a trailer buffer was present.  PR 10781
     [William Rowe]

  *) mod_ext_filter: Add the ability to enable or disable a filter via
     an environment variable.  Add the ability to register a filter of
     type other than AP_FTYPE_RESOURCE.  [Jeff Trawick]

  *) Restore the ability to specify host names on Listen directives.
     PR 11030.  [Jeff Trawick, David Shane Holden <dpejesh@yahoo.com>]

  *) When deciding on the default address family for listening sockets, 
     make sure we can actually bind to an AF_INET6 socket before
     deciding that we should default to AF_INET6.  This fixes a startup
     problem on certain levels of OpenUNIX.  PR 10235.  [Jeff Trawick]

  *) Replace usage of atol() to parse strings when we might want a
     larger-than-long value with apr_atoll(), which returns long long.
     This allows HTTPD to deal with larger files correctly.
     [Shantonu Sen <ssen@apple.com>]

  *) mod_ext_filter: Ignore any content-type parameters when checking if
     the response should be filtered.  Previously, "intype=text/html"
     wouldn't match something like "text/html;charset=8859_1".
     [Jeff Trawick]

  *) mod_ext_filter: Set up environment variables for external programs.
     [Craig Sebenik <craig@netapp.com>]

  *) Modified the HTTP_IN filter to immediately append the EOS (end of
     stream) bucket for C-L POST bodies, saving a roundtrip and allowing
     the caller to determine that no content remains without prefetching
     additional POST body.  [William Rowe]

  *) Get proxy ftp to work over IPv6.  [Shoichi Sakane <sakane@kame.net>]

  *) Look for OpenSSL libraries in /usr/lib64.  [Peter Poeml <poeml@suse.de>]

  *) Update SuSE layout.  [Peter Poeml <poeml@suse.de>]

  *) Changes to the internationalized error documents:
     Comment them out in the default config file to make the default
     install as simple as possible; Correct the english 500 error to
     be more understandable; Add a Swedish translation.
     [Thomas Sjogren <thomas@northernsecurity.net>, 
      Erik Abele <erik@codefaktor.de>, Rich Bowen, Joshua Slive]
     
  *) Increase the limit on file descriptors per process in apachectl.
     [Brian Pane]

  *) Fix a dependency error when building ApacheMonitor, so that Win32
     and MSVC now trust that the project is current (when it is).
     [James Cox <imajes@php.net>]

  *) mod_ext_filter: don't segfault if content-type is not set.  PR 10617.
     [Arthur P. Smith <apsmith@aps.org>, Jeff Trawick]

  *) APR-Util Renames pending have been completed [Thom May]

  *) Performance improvements for the code that reads request
     headers (ap_rgetline_core() and related functions)  [Brian Pane]

  *) Add a new directive: MaxMemFree.  MaxMemFree makes it possible
     to configure the maximum amount of memory the allocators will
     hold on to for reuse.  Anything over the MaxMemFree threshold
     will be free()d.  This directive is useful when uncommon large
     peaks occur in memory usage.  It should _not_ be used to mask
     defective modules' memory use.  [Sander Striker]

  *) Fixed the Content-Length filter so that HTTP/1.0 requests to CGI
     scripts would not result in a truncated response.
     [Ryan Bloom, Justin Erenkrantz, Cliff Woolley]

  *) Add a filter_init parameter to the filter registration functions
     so that a filter can execute arbitrary code before the handlers
     are invoked.  This resolves a problem where mod_include requests
     would incorrectly return a 304.  [Justin Erenkrantz]

  *) Fix a long-standing bug in 2.0, CGI scripts were being called
     with relative paths instead of absolute paths.  Apache 1.3 used
     absolute paths for everything except for SuExec, this brings back
     that standard.  [Ryan Bloom]

  *) Fix infinite loop due to two HTTP_IN filters being present for
     internally redirected requests.  PR 10146.  [Justin Erenkrantz]

  *) Switch conn_rec->keepalive to an enumeration rather than a bitfield.
     [Justin Erenkrantz]

  *) Fix mod_ext_filter to look in the main server for filter definitions
     when running in a vhost if the filter definition is not found in
     the vhost.  PR 10147  [Jeff Trawick]

  *) Support WinNT CGI invocation through ScriptInterpreterSource 
     'registry' for script interpreter paths and names with non-ascii
     characters in the executable filepath.  [William Rowe]

  *) Support the -w flag on to keep the Win32 console open on error.
     [William Rowe]

  *) Normalize the hostname value in the request_rec to all-lowercase
     [Perry Harrington <pedward@webcom.com>]

  *) Fix WinNT cgi 500 errors when QUERY_ARGS or other strings include
     extended characters (non US-ASCII) in non-utf8 format.  This brings
     Win32 back into CGI/1.1 compliance, and leaves charset decoding up
     to the cgi application itself.  [William Rowe]

  *) Major overhaul of mod_dav, mod_dav_fs and the experimental/cache
     modules to bring them up to the current apr/apr-util APIs.
     [William Rowe]

  *) Fix segfault in mod_mem_cache most frequently observed when
     serving the same file to multiple clients on an MP machine.
     [Bill Stoddard]

  *) mod_rewrite can now set cookies  (RewriteRule (.*) - [CO=name:$1:.domain])
     [Brian Degenhardt <bmd@mp3.com>, Ian Holsman]

  *) Fix perchild to work with apachectl by adding -k support to perchild.
     PR 10074  [Jeff Trawick]

  *) Fix a silly htpasswd.c logic error that incorrectly reported that
     both -c and -n had been used.  PR 9989  [Cliff Woolley]

  *) Fixed a mod_include error case in which no HTTP response was sent
     to the client if an shtml document contained an unterminated SSI
     directive [Brian Pane]

  *) Improve ap_get_client_block implementation by using APR-util brigade
     helper functions and relying on current filter assumptions.
     [Justin Erenkrantz]

Changes with Apache 2.0.39

  *) Fixed a build problem in htpasswd.c on Win32.
     [Guenter Knauf <eflash@gmx.net>, Cliff Woolley]

Changes with Apache 2.0.38

  *) Rewrite htpasswd to use APR.  The removes the annoying warning about
     tmpnam being unsafe.   [Ryan Bloom]

  *) We must set the MIME-type for .shtml files to text/html if we want them
     to be parsed for SSI tags.  Add the config for that to the default 
     config file so that it is easier to enable .shtml parsing.
     [Dave Dyer <ddyer@real-me.net>]

  *) Fixed a problem with 'make install' on ReliantUnix.
     [Jean-frederic Clere <jfrederic.clere@fujitsu-siemens.com>]

  *) Make the default_handler catch all requests that aren't served by
     another handler.  This also gets us to return a 404 if a directory
     is requested, there is no DirectoryIndex, and mod_autoindex isn't
     loaded.  [Justin Erenkrantz]

  *) Fixed the handling of nested if-statements in shtml files.
     PR 9866  [Brian Pane]

  *) Allow 'make install DESTDIR=/path'.  This allows packagers to install
     into a directory different from the one that was configured.  This 
     also mirrors the root= feature from 1.3.  We cannot use prefix=,
     because both APR and APR-util resolve their installation paths at 
     configuration time.  This means that there is no variable prefix 
     to replace.  [Andreas Hasenack <andreas@netbank.com.br>]

  *) AIX 4.3.2 and above: Define SINGLE_LISTEN_UNSERIALIZED_ACCEPT.
     These levels of AIX don't have a thundering herd problem with
     accept().  [Jeff Trawick]

  *) prefork MPM: Ignore mutex errors during graceful restart.  For
     certain types of mutexes (particularly SysV semaphores), we
     should expect to occasionally fail to obtain or release the
     mutex during restart processing.  [Jeff Trawick]

  *) Fix install-bindist.sh so that it finds any perl instead of just
     early perl 5.x versions.  This is consistent with a build/install
     from source, and it allows the perl scripts installed by a bindist 
     to work on systems with perl 5.6.  [Jeff Trawick]

  *) Fix apxs so that the makefile created by "apxs -g" works on AIX and
     Tru64 (and probably some other platforms).  [Jeff Trawick]

  *) Allow CGI scripts to return their Content-Length.  This also fixes a
     hang on HEAD requests seen on certain platforms (such as FreeBSD).
     [Justin Erenkrantz]

  *) Added log rotation based on file size to the RotateLog support
     utility. [Brad Nicholes]

  *) Fix some casting in mod_rewrite which broke random maps.
     PR 9770  [Allan Edwards, Greg Ames, Jeff Trawick]

Changes with Apache 2.0.37

  *) allow POST method over SSL when per-directory client cert
     authentication is used with 'SSLOptions +OptRenegotiate' enabled
     and a client cert was found in the ssl session cache.

  *) 'SSLOptions +OptRengotiate' will use client cert in from the ssl
     session cache when there is no cert chain in the cache.  prior to
     the fix this situation would result in a FORBIDDEN response and
     error message "Cannot find peer certificate chain"
     [Doug MacEachern]

  *) ap_finalize_sub_req_protocol() shouldn't send an EOS bucket if
     one was already sent.  PR 9644  [Jeff Trawick]

  *) Fix the display of the default name for the mime types config
     file.  PR 9729  [Matthew Brecknell <mbrecknell@orchestream.com>]

  *) Fix the working directory *for WinNT/2K/XP services only* to
     change to the Apache directory (one level above the location 
     of Apache.exe, in the case that Apache.exe resides in bin/.)
     Solves the case of ServerRoot /foo paths where /foo was not
     on the same drive as /winnt/system32.  [William Rowe]

  *) Make 2.0's "AcceptMutex" startup message now "completely"
     match how 1.3 does it. [Jim Jagielski]

  *) Implement a fixed size memory cache using a priority queue
     [Ian Holsman]

  *) Fix apxs to allow "apxs -q installbuilddir" and to allow
     querying certain other variables from config_vars.mk.  PR 9316  
     [Jeff Trawick]

  *) Added the "detached" attribute to the cgi_exec_info_t internals
     so that Win32 and Netware won't create a new window or console
     for each CGI invoked.  PR 8387
     [Brad Nicholes, William Rowe]

  *) Consolidated the command line parameters and attributes that are 
     manipulated by the optional function ap_cgi_build_command() in
     mod_cgi into a single structure.
     [Brad Nicholes]

  *) Get rid of uninitialized value errors with "apxs -q" on certain
     variables.  [Stas Bekman <stas@stason.org>]

  *) Fix apxs to allow it to work when the build directory is somewhere
     besides server-root/build.  PR 8453  
     [Jeff Trawick and a host of others]

  *) Allow ap_discard_request_body to be called multiple times in the
     same request.  Essentially, ap_http_filter keeps track of whether
     it has sent an EOS bucket up the stack, if so, it will only ever
     send an EOS bucket for this request.  
     [Ryan Bloom, Justin Erenkrantz, Greg Stein]

  *) Remove all special mod_ssl URIs.  This also fixes the bug where
     redirecting (.*) will allow an SSL protected page to be viewed
     without SSL.  [Ryan Bloom]

  *) Fix the binary build install script so that the build logic
     created by "apxs -g" will work when the user has a binary
     build.  [Jeff Trawick]

  *) Allow instdso.sh to work with full paths to the shared module.
     [Justin Erenkrantz]

  *) NetWare: Enabled CGI functionality and added mod_cgi as a built
     in module for NetWare  [Brad Nicholes]

  *) Changed cgi and piped log behavior to accept 65536 characters
     on Win32 (matching Linux) before deadlocking between outputing
     client stdin, slurping the output from stdout and then the stderr
     stream.  PR 8179  [William Rowe]

  *) Fixed Win32 wintty.exe support to assure the window title is valid.
     Elimiates possible gpfault or garbage title without the -t option.
     [William Rowe]

  *) Rewrite mod_cgi, mod_cgid, and mod_proxy input handling to use
     brigades and input filters.  [Justin Erenkrantz]

  *) Allow ap_http_filter (HTTP_IN) to return EOS when there is no request
     body.  [Justin Erenkrantz]
    
  *) NetWare: Piping log entries through RotateLogs using the 
     CustomLogs directive is finally supported now that we have 
     the pipes and spawning functionality working.
     [Brad Nicholes]

  *) SECURITY: CAN-2002-0392 (cve.mitre.org) [CERT VU#944335]
     Detect overflow when reading the hex bytes forming a chunk line.
     [Aaron Bannert]

  *) Allow RewriteMap prg:'s to take command-line arguments.  PR 8464.
     [James Tait <JTait@wyrddreams.demon.co.uk>]

  *) Correctly return 413 when an invalid chunk size is given on
     input.  Also modify ap_discard_request_body to not do anything
     on sub-requests or when the connection will be dropped.
     [Justin Erenkrantz]

  *) Fix the TIME_* SSL var lookups to be threadsafe.  PR 9469.
     [Cliff Woolley]

  *) Ensure that apr_brigade_write() flushes in all of the cases that
     it should to avoid conditions in some modules that could cause
     large amounts of data to be buffered.  [Cliff Woolley]

  *) Fix problem where mod_cache/mod_disk_cache was incorrectly
     stripping the content_type from cached responses.
     [Bill Stoddard]

  *) apachectl passes through any httpd options.  Note: apachectl
     should be used in preference to httpd since it ensures that any
     appropriate environment variables have been set up.
     [Jeff Trawick]

  *) Fix the combination of mod_cgid, mod_setuexec, and mod_userdir.
     PR 7810  [Colm MacCarthaigh <colmmacc@redbrick.dcu.ie>]

  *) Fix suexec execution of CGI scripts from mod_include.
     PR 7791, 8291  [Colm MacCarthaigh <colmmacc@redbrick.dcu.ie>]

  *) Fix segfaults at startup on some platforms when mod_auth_digest,
     mod_suexec, or mod_ssl were used as DSO's due to the way they
     were tracking the current init phase since DSO's get completely
     unloaded and reloaded between phases.  PR 9413.
     [Tsuyoshi Sasamoto <nazonazo@super.win.ne.jp>, Brad Nicholes]

  *) Fix mod_include's handling of regular expressions in
     "<!--#if" directives [Julius Gawlas <julius_gawlas@hp.com>]

  *) Fix the worker MPM deadlock problem  [Brian Pane]

  *) Modify the module documentation to allow for translations.
     [Yoshiki Hayashi, Joshua Slive]

  *) Fix a file permissions problem which prevented mod_disk_cache
     from working on Unix.  [Jeff Trawick]

  *) Add "-k start|restart|graceful|stop" support to httpd for the Unix 
     MPMs.  These have semantics very similar to the old apachectl 
     commands of the same name.  [Justin Erenkrantz, Jeff Trawick]

  *) Make sure that the runtime dir is created by make install.
     PR 9233.  [Jeff Trawick]

  *) Fix an unusual set of ./configure arguments that could cause
     mod_http to be built as a DSO, which it currently doesn't
     support.  PR 9244.
     [Cliff Woolley, Robin Johnson <robbat2@orbis-terrarum.net>]

  *) Win32: Fix bug in apr_sendfile() that caused incorrect operation
     of the %X, %b and %B logformat options. PR 8253, 8996.
     [Bill Stoddard]

  *) If content-encoding is already present, do not run deflate (PR 9222)
     [Kazuhisa ASADA <kaz@asada.sytes.net>]

  *) The APLOG_NOERRNO flag to ap_log_[r]error() is now deprecated.
     It is currently ignored and it will be removed in a future release
     of Apache.  [Jeff Trawick]

  *) Removed documentation references to the no-longer-supported
     "make certificate" feature of mod_ssl for Apache 1.3.x.  Test
     certificates, if truly desired, can be generated using openssl
     commands.  PR 8724.  [Cliff Woolley]

  *) Remove SSLLog and SSLLogLevel directives in favor of having
     mod_ssl use the standard ErrorLog directives.  [Justin Erenkrantz]

  *) OS/390: LIBPATH no longer has to be manually uncommented in
     envvars to get apachectl to set up httpd properly.  [Jeff Trawick]

  *) mod_isapi: All mod_isapi directives, excluding ISAPICacheFile,
     may now be specified to the <File/Directory > container, rather
     than by vhost.  [William Rowe]

  *) mod_isapi: Experimental support for faux async support for ISAPI
     modules.  [William Rowe]

  *) mod_isapi: Major refactoring of the code to rely on apr internals
     rather than MS APIs (using our own mod_isapi.h headers for ISAPI
     symbol definitions.)  [William Rowe]

  *) mod_isapi: Fixed the return string length from GetServerVariable
     callback, it was not including the trailing null in the consumed
     buffer size.  This was particularly bad for Delphi 6.0 users.
     PR 8934  [Sebastian Hantsch <sebastian.hantsch@gmx.de>]

  *) Fixed Win32 builds for Microsoft VisualStudio 7.0 (.net).
     [William Rowe]

  *) Make apxs look in the correct directory for envvars.  It was
     broken when sbindir != bindir.  PR 8869
     [Andreas Sundström <sunkan@zappa.cx>]
  
  *) Fix mod_deflate corruption when using multiple buckets.  PR 9014.
     [Asada Kazuhisa <kaz@asada.sytes.net>]

  *) Performance enhancements for access logger when using
     default timestamp formatting  [Brian Pane]

  *) Added EnableMMAP config directive to enable the server
     administrator to disable memory-mapping of delivered files
     on a per-directory basis.  [Brian Pane]

  *) Performance enhancements for mod_setenvif  [Brian Pane]

  *) Fix a mod_ssl build problem on OS/390.  [Jeff Trawick]

  *) Fixed If-Modified-Since on Win32, which would give false positives
     because of the sub-second resolution of file timestamps on that
     platform.  [Cliff Woolley]

  *) Reverse the hook ordering for mod_userdir and mod_alias so
     that Alias/ScriptAlias will override Userdir.  PR 8841
     [Joshua Slive]

  *) Move mod_deflate out of experimental and into filters.
     [Justin Erenkrantz]

  *) Get proxy CONNECT basically working.  [Jeff Trawick]

  *) Fix mod_rewrite hang when APR uses SysV Semaphores and
     RewriteLogLevel is set to anything other than 0.  PR: 8143
     [Aaron Bannert, Cliff Woolley]

  *) Fix byterange requests from returning 416 when using dynamic data
     (such as filters like mod_include).  [Justin Erenkrantz]

  *) Allow mod_rewrite's set of "int:" internal RewriteMap functions
     to be extended by third-party modules via an optional function.
     [Tahiry Ramanamampanoharana <nomentsoa@hotmail.com>, Cliff Woolley]

  *) Fix mod_include expression parser's handling of unquoted strings
     followed immediately by a closing paren.  PR 8462.  [Brian Pane]

  *) Remove autom4te.cache in 'make distclean'.
     [Thom May <thom@planetarytramp.net>]

  *) Fix generated httpd.conf to respect layout for LoadModule lines.
     PR 8170.  [Thom May <thom@planetarytramp.net>]

  *) Win32: During a graceful restart, threads in the new process
     were accessing scoreboard slots still in use by active threads in 
     the the old process. [Bill Stoddard]

Changes with Apache 2.0.36

  *) Fix some minor formatting issues with ab. Part of this is
     in reference to PR 8544, the rest I noticed while testing
     the PR fix. [Paul J. Reder]

  *) Fix a case where an invalid pass phrase is entered and an
     error message is given, but the prompt is not shown again.
     This left the user in an ambiguous state. PR 8320 [Paul J. Reder]

  *) Close sockets on worker MPM when doing a graceless restart.
     [Aaron Bannert]

  *) Reverted a minor optimization in mod_ssl.c that used the vhost ID
     as the session id context rather that a MD5 hash of that vhost ID,
     because it caused very long vhost id's to be unusable with mod_ssl.
     PR 8572.  [Cliff Woolley]

  *) Fix the link to the description of the CoredumpDirectory 
     directive in the server-wide document.  PR 8643.  [Jeff Trawick]

  *) Fixed SHMCB session caching.  [Aaron Bannert, Cliff Woolley]

  *) Synced with remaining changes from mod_ssl 2.8.8-1.3.24:
     - Avoid SIGBUS on sparc machines with SHMCB session caches
     - Allow whitespace between the pipe and the name of the
     program in SSLLog "| /path/to/program".  [Cliff Woolley]

  *) Introduce mod_ext_filter and mod_deflate experimental modules
     to the Win32 build (zlib sources must be in srclib\zlib.)
     [William Rowe]

  *) Changes to the worker MPM's queue management and thread
     synchronization code to reduce mutex contention  [Brian Pane]

  *) Don't install *.in configuration files since we already install
     *-std.conf files.  [Aaron Bannert]

  *) Many improvements to the threadpool MPM.  [Aaron Bannert]

  *) Fix subreqs that are promoted via fast_redirect from having invalid
     frec->r structures.  This would cause subtle errors later on in
     request processing such as seen in PR 7966.  [Justin Erenkrantz]

  *) More efficient pool recycling logic for the worker MPM [Brian Pane]

  *) Modify the worker MPM to not accept() new connections until
     there is an available worker thread. This prevents queued
     connections from starving for processing time while long-running
     connections were hogging all the available threads.  [Aaron Bannert]

  *) Convert the worker MPM's fdqueue from a LIFO back into a FIFO.
     [Aaron Bannert]

  *) Get basic HTTP proxy working on EBCDIC machines.  [Jeff Trawick]

  *) Allow mod_unique_id to work on systems with no IPv4 address
     corresponding to their host name.  [Jeff Trawick]

  *) Fix suexec behavior with user directories.  PR 7810.
     [Colm <colmmacc@redbrick.dcu.ie>]

  *) Reject a blank UserDir directive since it is ambiguous.  PR 8472.
     [Justin Erenkrantz]

  *) Make mod_mime use case-insensitive matching when examining
     extensions on all platforms.  PR 8223.  [Justin Erenkrantz]

  *) Add an intelligent error message should no proxy submodules be
     valid to handle a request. PR 8407 [Graham Leggett]

  *) Major improvements in concurrent processing for AB by enabling
     non-blocking connect()s and preventing APR from doing blocking
     read()s. Also implement fatal error checking for apr_recv().
     [Aaron Bannert]

  *) Fix Win32 NTFS Junctions (symlinks).  PR 8014  [William Rowe]

  *) Fix Win32 'short name' aliases in httpd.conf directives.
     PR 8009  [William Rowe]

  *) Fix generation of default httpd.conf when the layout paths are
     disjoint.  PR 7979, 8227.  [Justin Erenkrantz]

  *) Swap downgrade-1.0 and force-response-1.0 conditional checks so
     that downgraded responses can have force-response.  PR 8357.
     [Justin Erenkrantz]

  *) Fix perchild MPM so that it can be configured with the move to the
     experimental directory.  [Scott Lamb <slamb@slamb.org>]

  *) Fix perchild MPM so that it uses ap_gname2id for groups instead of
     ap_uname2id. [Scott Lamb <slamb@slamb.org>]

  *) Fix AcceptPathInfo. PR 8234  [Cliff Woolley]

  *) SECURITY: Added the APLOG_TOCLIENT flag to ap_log_rerror() to
     explicitly tell the server that warning messages should be sent 
     to the client in addition to being recorded in the error log. 
     Prior to this change, ap_log_rerror() always sent warning 
     messages to the client. In one case, a faulty CGI script caused
     the server to send a warning message to the client that contained
     the full path to the CGI script. This could be considered a
     minor security exposure. [Bill Stoddard]

  *) mod_autoindex output when SuppressRules was specified would
     omit the first carriage return so the first item in the list
     would appear to the right of the column headings instead of
     underneath them. PR 8016  [David Shane Holden <dpejesh@yahoo.com>]

  *) Moved the call to apr_mmap_dup outside the error branch so
     that it would actually get called. This fixes a core dump
     at init everytime you use the MMapFile directive. PR 8314
     [Paul J. Reder]

  *) Trigger an error when a LoadModule directive attempts to
     load a module which is built-in.  This is a common error when
     switching from a DSO build to a static build.  [Jeff Trawick]

  *) Change instdso.sh to use libtool --install everywhere and then
     clean up some stray files and symlinks that libtool leaves around
     on some platforms.  This gets subversion building properly since
     it needed a re-link to be performed by libtool at install time,
     and the old instdso.sh logic to simply cp the DSO didn't handle
     that requirement.  [Sander Striker]

  *) Allow VPATH builds to succeed when configured from an empty
     directory.  [Thom May <thom@planetarytramp.net>]

  *) Fix 'control reaches end of non-void function' warning in
     server/log.c.  [Ben Collins-Sussman <sussman@collab.net>]

  *) Perchild MPM is now correctly deemed as experimental and is now
     located in server/mpm/experimental.  [Justin Erenkrantz]

  *) Fix segfault in mod_mem_cache when garabge collecting an expired
     cache entry.  [Bill Stoddard]

  *) Introduced -E startup_logfile_name option to httpd to allow admins
     to begin logging errors immediately.  This provides Win32 users 
     an alternative to sending startup errors to the event viewer, and
     allows other daemon tool authors an alternative to logging to stderr.
     [William Rowe] 
     
  *) Fix subreqs with non-defined Content-Types being served improperly.
     [Justin Erenkrantz]

  *) Merge in latest GNU config.guess and config.sub files.  PR 7818.
     [Justin Erenkrantz]

  *) Move 100 - Continue support to the HTTP_IN filter so that filters
     are guaranteed to support 100 - Continue logic without any
     intervention.  [Justin Erenkrantz]

  *) Add HTTP chunked input trailer support.  [Justin Erenkrantz]

  *) Rename and export get_mime_headers as ap_get_mime_headers.
     [Justin Erenkrantz]

  *) Allow empty Host: header arguments.  PR 7441.  [Justin Erenkrantz]

  *) Properly substitute sbindir as httpd's location in apachectl.  PR 7840.
     [Andreas Hasenack <andreas@netbank.com.br>]

  *) Allow Win32 shebang scripts to follow the path (or omit the .exe
     suffix from the shebang command), and allow ScriptInterpreterSource
     Registry or RegistryStrict to override shebang lines, as 1.3 did.
     PR 8004  [William Rowe]

  *) worker MPM: Fix a situation where a child exited without releasing
     the accept mutex.  Depending on the OS and mutex mechanism this 
     could result in a hang.  [Jeff Trawick]

  *) Update the instructions for how to get started with mod_example.
     [Stas Bekman]
  
  *) Fix PidFile to default to rel_runtimedir instead of
     rel_logfiledir.  PR 7841.  [Andreas Hasenack <andreas@netbank.com.br>]

  *) Win32: Fix problem that caused rapid performance degradation
     when number of connecting clients exceeded ThreadsPerChild.
     [Bill Stoddard]

  *) Fixed a segfault parsing large SSIs on non-mmap systems.
     [Brian Havard]

  *) Proxy was bombing out every second keepalive request, caused by a
     stray CRLF before the second response's status line. Proxy now
     tries to read one more line if it encounters a CRLF where it
     expected a status. PR 10010 [Graham Leggett]

  *) Deprecated the apr_lock.h API. Please see the following files
     for the improved thread and process locking and signaling: 
     apr_proc_mutex.h, apr_thread_mutex.h, apr_thread_rwlock.h,
     apr_thread_cond.h, and apr_global_mutex.h.  [Aaron Bannert]

  *) Change mod_status to use scoreboard accessor functions so it can
     be used in any MPM without having to be recompiled.
     [Ryan Morgan <rmorgan@covalent.net>]

  *) Fix parsing of some AP_DECLARE_DATA declarations so that the filter
     handle declarations are recognized.  This fixes problems loading 
     mod_autoindex on some platforms.  [Brian Havard]

  *) add optional fixup hook to proxy [Daniel Lopez <daniel@covalent.net>]

  *) Remind the admin about the User and Group directives when we are
     unable to set permissions on a semaphore.  PR 7812  [Jeff Trawick]

  *) fix possible compilation problem in ssl_engine_kernel.c. PR 7802
     [Doug MacEachern]

  *) fix possible infinite loop in mod_ssl triggered by certain
     netscape clients [Doug MacEachern]

  *) fix ProxyPass when frontend is https and backend is http
     [Doug MacEachern]

  *) Add DASL support to mod_dav
     [Sung Kim <hunkim@cse.ucsc.edu>]

Changes with Apache 2.0.35

  *) mod_rewrite: updated to use the new APR global mutex type.
     [Aaron Bannert]

  *) Fixes for mod_include errors on boundary conditions in which
     "<!--#" occurs at the very end of a bucket
     [Paul Reder, Brian Pane]

  *) worker, prefork, perchild, beos MPMs: Add -DFOREGROUND switch to 
     cause the Apache parent process to run in the foreground (similar to
     -DNO_DETACH except that it doesn't switch session ids).  
     [Jeff Trawick]

  *) Added support for Posix semaphore mutex locking (AcceptMutex posixsem)
     for those platforms that support it. If using the default
     implementation, this is between pthread and sysvsem in priority.
     This implies it's the new default for Darwin. [Jim Jagielski]

  *) AIX: Fix the syntax for setting the LDR_CNTRL and AIXTHREAD_SCOPE
     environment variables in the envvars file.  [Jeff Trawick]

  *) worker MPM: Don't create a listener thread until we have a worker
     thread.  Otherwise, in situations where we'll have to wait a while
     to take over scoreboard slots from a previous generation, we'll be
     accepting connections we can't process yet.  [Jeff Trawick]

  *) Allow worker MPM to build on systems without pthread_kill().
     [Pier Fumagalli, Jeff Trawick]

  *) Prevent ap_add_output_filters_by_type from being called in
     ap_set_content_type if the content-type hasn't changed.
     [Justin Erenkrantz]

  *) Performance: implemented the bucket allocator made possible by the
     API change in 2.0.34.  [Cliff Woolley]

  *) Don't allow initialization to succeed if we can't get a socket
     corresponding to one of the Listen statements.  [Jeff Trawick]

Changes with Apache 2.0.34

  *) Allow all Perchild directives to accept either numerical UID/GID
     or logical user/group names.  [Scott Lamb <slamb@slamb.org>]

  *) Make Perchild compile cleanly and serve pages again. [Ryan Bloom]

  *) implement ssl proxy to support ProxyPass / https:// and the
     SSLProxy* directives [Doug MacEachern]

  *) Update mod_cgid to not do single-byte socket reads for CGI headers
     [Brian Pane]

  *) Made AB's use of the Host: header rfc2616 compliant
     by Taisuke Yamada <tai@iij.ad.jp> [Dirk-Willem van Gulik].

  *) The old, legacy (and unused) code in which the scoreboard was totally
     and completely contained in a file (SCOREBOARD_FILE) has been
     removed. This does not affect scoreboards which are *mapped* to
     files using named-shared-memory. [Jim Jagielski]

  *) Change bucket brigades API to allow a "bucket allocator" to be
     passed in at certain points.  This allows us to implement freelists
     so that we can stop using malloc/free so frequently.
     [Cliff Woolley, Brian Pane]

  *) Add support for macro expansion within the variable names in
     <!--#echo--> and <!--#set--> directives [Brian Pane]

  *) Fix some mod_include segfaults [Cliff Woolley, Brian Pane, Brad Nicholes]

  *) Update the "RedHat" Layout to match Red Hat Linux version 7. PR BZ-7422
     [Joe Orton] 

  *) add compat layer to support RSA SSLC 1.x and 2.x in mod_ssl
     [Jon Travis, John Barbee, William Rowe, Ryan Bloom, Doug MacEachern]

  *) Add a new parameter to the quick_handler hook to instruct
     quick handlers to optionally do a lookup rather than actually 
     serve content. This is the first of several changes required fix
     several problems with how quick handlers work with subrequests.
     [Bill Stoddard]

  *) worker MPM: Get MaxRequestsPerChild to work again.  [Jeff Trawick]

  *) [APR-related] The ordering of the default accept mutex method has
     been changed to better match what's done in Apache 1.3. The ordering 
     is now (highest to lowest): pthread -> sysvsem -> fcntl -> flock.
     [Jim Jagielski]

  *) Ensure that the build/ directory is created when using VPATH.
     [Justin Erenkrantz]

  *) Add some popular types to the mime magic file.  PR 7730.
     [Linus Walleij <triad@df.lth.se>, Justin Erenkrantz]

  *) Remove the single-byte socket reads for CGI headers [Brian Pane]

  *) When a proxied site was being served, Apache was replacing
     the original site Server header with it's own, which is not
     allowed by RFC2616. Fixed. [Graham Leggett]

  *) Fix a mod_cgid problem that left daemon processes stranded
     in some server restart scenarios.  [Jeff Trawick]

  *) Added exp_foo and rel_foo variables to config_vars.mk for
     all Apache and Autoconf path variables (like --sysconfdir,
     --sbindir, etc). exp_foo is the "expanded" version, which means
     that all internal variable references have been interpolated.
     rel_foo is the same as $exp_foo, only relative to $prefix if they
     share a common path.  [Aaron Bannert]

  *) Fix some restart/terminate problems in the worker MPM.  Don't
     drop connections during graceful restart.  [Jeff Trawick]

  *) Change the header merging behaviour in proxy, as some headers
     (like Set-Cookie) cannot be unmerged due to stray commas in
     dates. [Graham Leggett]

  *) Be more vocal about what AcceptMutex values we allow, to make
     us closer to how 1.3 does it. [Jim Jagielski]

  *) Get nph- CGI scripts working again.  PRs 8902, 8907, 9983
     [Jeff Trawick]

  *) Upgraded PCRE library to latest version 3.9 [Brian Pane]

  *) Add accessor function to set r->content_type. From now on,
     ap_rset_content_type() should be used to set r->content_type.
     This change is required to properly implement the 
     AddOutputFilterByType configuration directive.
     [Bill Stoddard, Sander Striker, Ryan Bloom]

  *) Add new M_FOO symbols for the WebDAV/DeltaV methods specified by
     RFC 3253. Improved the method name/number mapping functions.
     [Greg Stein]

  *) remove sock_enable_linger from connection.c [Ian Holsman]

  *) Fix for virtual host processing where the requested hostname
     has a '.' at the end (PR 9187) [Ryan Cruse <ryan@estara.com>]

  *) mod_dav's APIs for REPORT response handling was changed so that
     providers can generate the content directly into the output filter
     stack, rather than buffering the response into memory. [Greg Stein]

  *) Fix a hang condition with graceful restart and prefork MPM
     in the situation where MaxClients is very high but
     much fewer servers are actually started at the time of the
     restart.  [Jeff Trawick]

  *) Small performance fixes for mod_include [Brian Pane]

  *) Performance improvement for the error logger [Brian Pane]

  *) Change configure so that Solaris 8 and above have 
     SINGLE_LISTEN_UNSERIALIZED_ACCEPT defined by default.
     according to sun people solaris 8+ doesn't have a thundering
     herd problem [Ian Holsman]

  *) Allow URIs specifying CGI scripts to include '/' at the end
     (e.g., /cgi-bin/printenv/) on AIX and Solaris (and other OSs
     which ignore '/' at the end of the names of non-directories).
     PR 10138  [Jeff Trawick]

  *) implement SSLSessionCache shmht and shmcb based on apr_rmm and
     apr_shm.  [Madhusudan Mathihalli <madhusudan_mathihalli@hp.com>]

  *) Fix apxs -g handling.  Move config_vars.mk from the top build
     directory to the build directory.  PR 10163  [Jeff Trawick]

  *) Fix some mod_include problems which broke evaluation of some
     expressions.  PR 10108  [Jeff Trawick]

  *) Fix the calculation of request time in mod_status.  [Stas Bekman]

  *) Fix the calculation of thread_num in the worker score structure.
     [Stas Bekman]

  *) Use apr_atomic operations in managing the mod_mem_cache
     cache_objects for SMP scalability. (see USE_ATOMICS
     preprocessor directive in mod_file_cache)
     [Bill Stoddard]

  *) Add filehandle caching to mod_mem_cache. (see CACHE_FD
     preprocessor directive in mod_file_cache)
     [Bill Stoddard]

  *) Implement prototype mod_disk_cache for use with mod_cache.
     [Bill Stoddard]

  *) Add a missing manualdir entry in the Debian config.layout.
     [Thom May <thom@planetarytramp.net>]

  *) Stop installing libtool for APR and tell APR where it should place
     its copy of libtool (via our installbuildpath layout variable).
     [Justin Erenkrantz]

  *) New directive ProxyIOBufferSize. Sets the size of the buffer used
     when reading from a remote HTTP server in proxy. [Graham Leggett]

  *) Modify receive/send loop in proxy_http and proxy_ftp so that
     should it be necessary, the remote server socket is closed before
     transmitting the last buffer (set by ProxyIOBufferSize) to the
     client. This prevents the backend server from being forced to hang
     around while the last few bytes are transmitted to a slow client.
     Fix the case where no error checking was performed on the final
     brigade in the loop. [Graham Leggett]

  *) Scrap CacheMaxExpireMin and CacheDefaultExpireMin. Change
     CacheMaxExpire and CacheDefaultExpire to use seconds rather than
     hours. [Graham Leggett, Bill Stoddard]

  *) New Directive SSIUndefinedEcho. to change the '(none)' echoed
     for a undefined variable. [Ian Holsman]

  *) Proxy HTTP and CONNECT: Keep trying other addresses from the DNS
     when we can't get a socket in the specified address family.  We may
     have gotten back an IPv6 address first and yet our system is not
     configured to allow IPv6 sockets.  [Jeff Trawick]

  *) Be more careful about recursively removing CVS directories. Make
     sure that we aren't cd'ing to their home directory first. PR: 9993
     [Aaron Bannert, James LewisMoss <dres@lewismoss.net>]

  *) Add a missing errordir entry in the Debian config.layout. PR: 10067
     [Dirk-Jan Faber <dirk-jan@selwerd.nl>, Aaron Bannert,
      Thom May <thom@planetarytramp.net>]

  *) Rename the filter ordering priorities.  The recent filtering fixes
     have showcased problems with their usage.  Therefore, we need to
     rename them to increase the clarity.  (CONTENT->RESOURCE,
     HTTP_HEADER->CONTENT_SET/PROTOCOL)  [Justin Erenkrantz]

Changes with Apache 2.0.33

  *) Fix a problem in the new --enable-layout functionality where
     it wouldn't allow overrides from variables like --prefix,
     --bindir, etc.  [Thom May <thom@planetarytramp.net>]

  *) Fix a bug in the core input filter for AP_MODE_EXHAUSTIVE. It
     no longer hangs around waiting for the socket to close before
     returning exhaustive data.  [Aaron Bannert]

  *) rename apr_exploded_time_t to apr_time_exp_t (as per renames pending)
     [Thom May <thom@planetarytramp.net>]

  *) Change mod_ssl to always do a full startup/teardown on restarts.
     this allows mod_ssl to be added to a server that is already
     running and makes it possible to add/change certs/keys after the
     server has been started.  [Doug MacEachern]

  *) Introduce PassPhraseDialog "|/path/to/pipe" mechanism to mod_ssl.
     This pipe must be a bidirectional 'console' style relay, which
     mod_ssl prints all prompts to the pipe's stdin, and reads the
     passphrases from the pipe's stdout.  [William Rowe]

  *) Fix bug where --sysconfdir and --localstatedir were being
     ignored.  [Thom May <thom@planetarytramp.net>, Aaron Bannert]
     PR 9888

  *) Fix --enable-layout to work again. Caution: When specifying
     --enable-layout, common arguments like --prefix, --exec-prefix,
     etc. will be ignored and the settings from the layout will be
     used instead.  [Thom May <thom@planetarytramp.net>, Aaron Bannert]
     PR 9124, 9873, 9885

  *) New Directive for mod_proxy: ProxyRemoteMatch. This provides
     regex pattern matching for the determination of which requests
     to use the remote proxy for. [Jim Jagielski]

  *) Fix CustomLog bytes-sent with HTTP 0.9.  [Justin Erenkrantz]

  *) Prevent Apache from ignoring SIGHUP due to some lingering 1.3
     cruft in piped logs and rewritemap child processes.
     [William Rowe]

  *) All instances of apr_lock_t have been removed and converted
     to one of the following new lock APIs: apr_thread_mutex.h,
     apr_proc_mutex.h, or apr_global_mutex.h. No new code should
     use the apr_lock.h API, as the old API will soon be deprecated.
     [Aaron Bannert]

  *) Merged in changes to mod_ssl up through 2.8.7-1.3.23.
     [Ralf S. Engelschall, Cliff Woolley]

  *) mod-include: make it handle flush'es and fix the 'false-alarm'
     [Justin Erenkrantz, Brian Pane, Ian Holsman]

  *) ap_get_*_filter_handle() functions to allow 3rd party modules
     to lookup filter handles so they can bypass the filter name
     lookup when adding filters to a request (via ap_add_*_filter_handle())
     [Ryan Morgan <rmorgan@covalent.net>]

  *) Fix for multiple file buckets on Win32, where the first file
     bucket would cause the immediate closure of the socket on any
     non-keepalive requests.  [Ryan Morgan <rmorgan@covalent.net>]

  *) Correct Win32 failure of mmap of a segment beyond start of the
     file; fixes large SSL and similar transfers.  [William Rowe]
     PR 9898

  *) Implement apr_proc_detach changes and allow -DNO_DETACH in the
     multi-process mode to not "daemonize" while detaching from the
     controlling terminal. This is necessary for Apache to work with
     process-management tools like AIX's "System Resource Controller"
     as well as Dan Bernstein's "daemontools".
     [Jos Backus <josb@cncdsl.com>, Aaron Bannert]

  *) Convert mod_auth_digest to use the new apr_global_mutex_t
     type.  [Aaron Bannert]

  *) fix bug in mod-include where it wouldn't send a unmatched
     part if it was at the end of a bucket [Ian Holsman]

  *) worker MPM: Improve logging of errors with the interface between
     the listener thread and worker threads.  [Jeff Trawick]

  *) Some browsers ignore cookies that have been merged into a
     single Set-Cookie header. Set-Cookie and Set-Cookie2 headers
     are now unmerged in the http proxy before being sent to the
     client. [Graham Leggett]

  *) Fix a problem with proxy where each entry of a duplicated
     header such as Set-Cookie would overwrite and obliterate the
     previous value of the header, resulting in multiple header
     values (like cookies) going missing.
     [Graham Leggett, Joshua Slive]

  *) Add the server-limit and thread-limit values to the scoreboard
     for the sake of third-party applications.
     [Adam Sussman <myddryn@vishnu.vidya.com>]

  *) Fix segfault when proxy recieves an invalid HTTP response [Ian Holsman]

  *) OS/390: Get make install to properly copy DSO modules.
     [Jeff Trawick]

  *) Win32: Fix bug in mod_status with displaying "Restart Time"
     and "Server uptime".
     [Bill Stoddard]

  *) Fix IPv6 name-based virtual hosts.  [Jeff Trawick]

  *) Introduce AddOutputFilterByType directive.  [Justin Erenkrantz]

  *) Fix DEBUG_CGI support in mod_cgi.  PR 9670, 9671.
     [David MacKenzie <djm@pix.net>]

  *) Fix incorrect check for script_in in mod_cgi.  PR 9669.
     [David MacKenzie <djm@pix.net>]

  *) Fix segfault and display error when SSLMutex file can not be
     created.  [Adam Sussman <myddryn@vishnu.vidya.com>]

  *) Add reference counting to mod_mem_cache cache objects to
     better manage removing objects from the cache.
     [Bill Stoddard]

  *) Change the verbage on the ScoreBoardFile in our default configs.
     Also change the default to be commented out (unspecified) so we
     get anonymous shared memory by default.  [Aaron Bannert]

  *) Implement new ScoreBoardFile directive logic. This affects how
     we create the scoreboard's shared memory segment. If the directive
     is present, a name-based segment is created. If the directive is
     not present, first an anonymous segment is created, and if that
     fails, a name-based segment is created from a file of the name
     DEFAULT_SCOREBOARD. This gives third-party applications the
     ability to access our scoreboard.  [Aaron Bannert]

  *) Allow mod_deflate to work with non-GET requests and properly send
     Content-Lengths.  [Sander Striker <striker@apache.org>]

  *) Fix ap_directory_merge() to correctly merge configs when there is
     no <Directory /> block.  [Justin Erenkrantz, William Rowe]

  *) Remove spurious debug messsages that are normal under HTTP
     keep-alive logic.  [Jeff Trawick, Justin Erenkrantz]

  *) Fix a bug in mod_cgid that would prevent proper shutdown death
     of the cgid process.  [Aaron Bannert]

  *) Add signal handling back in to the worker MPM for the one_process
     (-X, -DDEBUG, -DONE_PROCESS) case.  [Aaron Bannert]

  *) Performance: Reuse per-connection transaction pools in the
     worker MPM, rather than destroying and recreating them.  [Brian Pane]

  *) Remove all signals from the worker MPM's child process.  Instead,
     the parent uses the Pipe of Death for all communication with the
     child processes.  [Ryan Bloom]

Changes with Apache 2.0.32

  *) mod_negotiation: ForceLanguagePriority now uses 'Prefer' as the
     default if the directive is not specified.  This mirrors older
     behavior without changes to the httpd.conf.  [William Rowe]

  *) Win32: solve the win32 service problems in 2.0.31-alpha, by fixing
     the service, mpm and logging code, and bugs in apr_file_open_stderr 
     and apr_file_dup2 functions.  Win2K/XP services have no handles 
     associated for stdin/out/err, which caused unpredictable behavior
     in the prior release.  [William Rowe, Bill Stoddard]

  *) Win32: simplify the Application Event Log messages, since there isn't
     likely to be 'more information in the error log' before an error log
     has been opened.  [William Rowe]

  *) Win32: substantial cleanup to the mpm_winnt code for legibility and
     to follow the program flow of other MPMs.  [Ryan Bloom, William Rowe]

  *) Win32: apache -k shutdown now behaves like apache -k stop.
     [Bill Stoddard]

  *) Fix prefork to not kill the parent if a child hits a resource shortage
     on accept().  [Greg Ames]

  *) Fix seg faults that occur when what should be the httpd request line
     starts with \r\n followed by garbage.  [Greg Ames]

  *) Allow statically linked support binaries with the new
     --enable-static-support flag, and enable this behavior in
     the binbuild script. Also add a new --enable-static-htdbm
     flag.  [Aaron Bannert]

  *) Allow mod_autoindex to serve symlinks if permitted and attempt to
     do only one stat() call when generating the directory listings.
     [Justin Erenkrantz]

  *) Fix resolve_symlink to save the original symlink name if known.
     [Justin Erenkrantz]

  *) Be a bit more sane with regard to CanonicalNames.  If the user has
     specified they want to use the CanonicalName, but they have not
     configured a port with the ServerName, then use the same port that 
     the original request used. [Ryan Bloom and Ken Coar]

  *) In core_input_filter, check for an empty brigade after 
     APR_BRIGADE_NORMALIZE().  Otherwise, we can get segfaults if a
     client says it will post some data but we get FIN before any
     data arrives.  [Jeff Trawick]

  *) Not being able to bind to the socket is a fatal error.  We should
     print an error to the console, and return a non-zero status code.
     With these changes, all of the Unix MPMs do that correctly.
     [Ryan Bloom]

  *) suexec: Allow HTTPS and SSL_* environment variables to be passed
     through to CGI scripts. PR 9163
     [Brian Reid <breid@customlogic.com>, 
      Zvi Har'El <rl@math.technion.ac.il>]

  *) binbuild.sh: Make sure that we use the expat from our source
     tree so that there aren't any surprises on the target machine.
     [Jeff Trawick]

  *) mod_cgid: Add retry logic for when the daemon can't fork fast
     enough to keep up with new requests.  Start using 
     HTTP_SERVER_UNAVAILABLE instead of HTTP_INTERNAL_SERVER_ERROR
     when we can't talk to the daemon.  [Jeff Trawick]

  *) apxs: LTFLAGS envvar can override default libtool options.  Try
     "LTFLAGS=' ' apxs -c mod_foo.c" to see what libtool does under
     the covers.  [Jeff Trawick]

  *) The Location: response header field, used for external
     redirect, *must* be an absoluteURI.  The Redirect directive
     tested for that, but RedirectMatch didn't -- it would allow
     almost anything through.  Now it will try to turn an abs_path
     into an absoluteURI, but it will correctly varf like Redirect
     if the final redirection target isn't an absoluteURI.  [Ken Coar]

Changes with Apache 2.0.31

  *) Create the scoreboard (in the parent) in a global pool context,
     so it survives graceful restarts. This fixes a SEGV during
     graceful restarts.  [Aaron Bannert]

  *) Add a timeout option to the proxy code 'ProxyTimeout' 
     [Ian Holsman]

  *) FTP directory listings are now always retrieved in ASCII mode.
     The FTP proxy properly escapes URI's and HTML in the generated
     listing, and escapes the path components when talking to the FTP
     server. It is now possible to browse the root directory by using
     a url like:   ftp://user@host/%2f/ (ported from apache_1.3.24)
     Also, the last path component may contain wildcard characters
     '*' and '?', and if they do, a directory listing is created instead
     of a file retrieval. Example: ftp://user@host/httpd/server/*.c
     [Martin Kraemer]

  *) Added single-listener unserialized accept support to the
     worker MPM [Brian Pane]

  *) New Directive for mod_proxy: 'ProxyPreserveHost'. This passes
     the incoming host header through to the proxied server
     [Geoff <g.russell@ieee.org>]

  *) New Directive Option for ProxyPass. It now can block a location
     from being proxied [Jukka Pihl <jukka.pihl@entirem.com>]

  *) Don't let the default handler try to serve a raw directory.  At
     best you get gibberish.  Much worse things can happen depending
     on the OS.  [Jeff Trawick]
     
  *) Change the pre_config hook to return a value. Modules can now emit
     an error message and then cause the server to quit gracefully during
     startup. This required a bump to the MMN.  [Aaron Bannert]

  *) Fix some unix socket descriptor leaks in the handler side of
     mod_cgid (the part that runs in the server process).  Whack a
     silly "close(-1)" in the handler too.  [Jeff Trawick]

  *) Change the pre_mpm hook to return a value, so that scoreboard
     init errors percolate up to code that knows how to exit 
     cleanly.  This required a bump to the MMN.  [Jeff Trawick]

  *) Add the socket back to the conn_rec and remove the create_connection
     hook. The create_connection hook had a design flaw that did not 
     allow creating connections based on vhost info. [Bill Stoddard]

  *) Fixed PATH_INFO and QUERY_STRING from mod_negotiation results.
     Resolves the common case of using negotation to resolve the request
     /script/foo for /script.cgi/foo.  [William Rowe]

  *) Added new functions ap_add_(input|output)_filter_handle to
     allow modules to bypass the usual filter name lookup when
     adding hard-coded filters to a request [Brian Pane]

  *) caching should now work on subrequests (still very experimental)
     [Ian Holsman]
  
  *) The Win32 mpm_winnt now has a shared scoreboard.  [William Rowe]

  *) Change ap_get_brigade prototype to use apr_off_t instead of apr_off_t*.
     [Justin Erenkrantz]

  *) Refactor ap_rgetline so that it does not use an internal brigade.
     Change ap_rgetline's prototype to return errors.  [Justin Erenkrantz]

  *) Remove mod_auth_db.  [Justin Erenkrantz]

  *) Do not install unnecessary pcre headers like config.h and internal.h.
     [Joe Orton <joe@manyfish.co.uk>]

  *) Change in quick_hanlder behavior for subrequests. it now passes DONE
     (as it does for a normal request). quick_handled sub-requests now work
     in mod-include [Ian Holsman]

  *) Change SUBREQ_CORE so that it is a 'HTTP_HEADER' filter instead of
     'CONTENT' one, as it needs to run AFTER all content headers

  *) Rename BeOS MPM directive RequestsPerThread to MaxRequestsPerThread.
     [Lars Eilebrecht]

  *) Split out blocking from the mode in the input filters.
     [Justin Erenkrantz]

  *) Fix a segfault in mod_include.  [Justin Erenkrantz, Jeff Trawick]

  *) Cause Win32 to capture all child-worker process errors in
     Apache to the main server error log, until the child can
     open its own error logs.  [William Rowe]

  *) HPUX 11.*: Do not kill the child process when accept() 
     returns ENOBUFS on HPUX 11.*. (ported from a 1.3 patch
     by [madhusudan_mathihalli@hp.com])
     [Bill Stoddard]

  *) Fix a problem in the parsing of the <Proxy foo> directive.
     [Jeff Trawick]

  *) rewrite of mod_ssl input filter for better performance and less
     memory usage [Doug MacEachern]

  *) allow quick_handler to be run on subrequests. [Ian Holsman]

  *) mod_dav now asks its provider to place content directly into the
     filter stack when handling a GET request. The mod_dav/provider
     API has changed, so providers need to be updated. [Greg Stein]

  *) Clear the output socket descriptor in unixd_accept() to make sure
     we don't supply a bogus socket to the caller if the accept fails.
     This caused problems with the worker MPM, which tried to process
     the returned socket if it was non-NULL.  [Brian Pane]

  *) Move a check for an empty brigade to the start of core input filter
     to avoid segfaults.  [Justin Erenkrantz, Jeff Trawick]

  *) Add FileETag directive to allow configurable control of what
     data are used to form ETag values for file-based URIs.  MMN
     bumped to 20020111 because of fields added to the end of
     the core_dir_config structure.  [Ken Coar]

  *) Fix a segfault in mod_rewrite's logging code caused by passing the
     wrong config to ap_get_remote_host().  [Jeff Trawick]

  *) Allow mod_cgid to work from a binary distribution install by
     using 755 for the permissions on the log directory instead of
     750.  [Jeff Trawick]

  *) Fixed a segfault that happened during graceful shutdown (or when
     the httpd ran out of file descriptors) with the worker MPM [Brian Pane]

  *) Split all Win32 modules [excluding the core components mod_core, 
     mod_so, mod_win32 and the winnt mpm] into individual loadable
     modules, so the administrator may individually disable the former
     compiled-in modules by simply commenting out their LoadModule
     directives.  [William Rowe]

  *) Saved Win32 module authors and porters many future headaches, by
     duplicating the appropriate .h files such as os.h into the include
     directory, including in the build tree.  [William Rowe]

  *) mod_ssl adjustments to help with using toolkits other than OpenSSL:
      Use SSL functions/macros instead of directly dereferencing SSL
      structures wherever possible.
      Add type-casts for the cases where functions return a generic pointer.
      Add $SSL/include to configure search path.
     [Madhusudan Mathihalli <madhusudan_mathihalli@hp.com>]

  *) Moved several pointers out of the shared Scoreboard so it is
     more portable, and will present the vhost name across server
     generation restarts.  [William Rowe]

  *) Fix SSLPassPhraseDialog exec: and SSLRandomSeed exec:
     [Doug MacEachern]

Changes with Apache 2.0.30

  *) Fix the main bug for FreeBSD and threaded MPM's. There are
     still issues (see STATUS) but at least the server will now
     run without crashing the machine.
     [David Reid, Aaron Bannert, Justin Erenkrantz]

  *) Fix a typo in mod_deflate's m4 config section.
     [albert chin (china@thewrittenword.com)]

  *) Fix a couple of mod_proxy problems forwarding HTTP connections
     and handling CONNECT:
     (1) PR #9190  Proxy failed to connect to IPv6 hosts.
     (2) Proxy failed to connect when the first IP address returned by 
         the resolver was unreachable but a secondary IP address was.  
     [Jeff Trawick]

  *) Fix the module identifer as shown in the docs for various core
     modules (e.g., the identifer for mod_log_config was previously
     listed as config_log_module).  PR #9338
     [James Watson <ap2bug@sowega.org>]

  *) Fix LimitRequestBody directive by placing it in the HTTP
     filter.  [Justin Erenkrantz]

  *) Fix mod_proxy seg fault when the proxied server returns 
     an HTTP/0.9 response or a bogus status line.
     [Adam Sussman]

  *) Prevent mod_proxy from truncating one character off the
     end of the status line returned from the proxied server.
     [Adam Sussman, Bill Stoddard]

  *) Eliminate loop in ap_proxy_string_read().
     [Adam Sussman, Bill Stoddard]

  *) Provide $0..$9 results from mod_include regex parsing.
     [William Rowe]

  *) Allow mod-include to look for alternate start & end tags [Ian Holsman]

  *) Introduced the ForceLanguagePriority directive, to prevent
     returning MULTIPLE_CHOICES or NONE_ACCEPTABLE in some cases,
     when using Multiviews.  [William Rowe]

  *) Fix a problem which prevented mod_cgid and suexec from working
     together reliably [Greg Ames]

  *) Remove the call to exit() from within mod_auth_digest's post_config
     phase.  [Aaron Bannert]

  *) Fix a problem in mod_auth_digest that could potentially cause
     problems with initialized static data on a system that uses DSOs.
     [Aaron Bannert]

  *) Fix a segfault in the worker MPM that could happen during
     child process exits.  [Brian Pane, Aaron Bannert]

  *) Allow mod_auth_dbm to handle multiple DBM types [Ian Holsman]

  *) Fix matching of vhosts by ip address so we find IPv4
     vhost address when target address is v4-mapped form of
     that address.  [Jeff Trawick]

  *) More performance tweaks to the BNDM string-search algorithm
     used to find "<!--#" tokens in mod_include [Brian Pane]

  *) Miscellaneous small performance fixes: optimized away various
     string copy operations and removed large temp buffers from
     the stack [Brian Pane]

  *) Fixed startup segfault that occurred when a VirtualHost
     directive had a port but no address [Brian Pane]

  *) Allow htdbm to work with multiple DBM types [Ian Holsman]

  *) Win32: Made change to apr_sendfile() to return APR_ENOTIMPL
     if oslevel < WINNT.  This should fix several problems reported
     Against 2.0.28 on Windows 98 [Bill Stoddard]

  *) Win32: Fix bug that could cause CGI scripts with QUERY_STRINGS
     to fail. [Bill Stoddard]

  *) Change core code to allow an MPM to set hard thread/server
     limits at startup.  prefork, worker, and perchild MPMs now have 
     directives to set these limits.  [Jeff Trawick]

  *) Win32: The async AcceptEx() event should be autoreset upon
     successful completion of a wait (WaitForSingleObject). This
     eliminates a number of spurious
     setsockopt(SO_UPDATE_ACCEPT_CONTEXT) failed." messages.
     [Bill Stoddard]

  *) Move any load library path environment variables out of 
     apachectl and into a separate environment variable file which
     can be more easily tailored by the admin.  The environment
     variable file as built by Apache may have additional system-
     specific settings.  For example, on OS/390 we tailor the heap
     settings to allow lots of threads.  [Jeff Trawick]
    
  *) Use the new APR pool code to reduce pool-related lock
     contention in the worker MPM.  [Sander Striker]

  *) The POD no longer assumes the child is listening on 127.0.0.1
     and now pulls the first hostname in the list of listeners to
     perform the dummy connect on. This fixes a bug when the user
     had configured the Listen directive for an IP other than
     127.0.0.1. This would result in undead children and error
     messages such as "Connection refused: connect to listener".
     [Aaron Bannert]

  *) The worker MPM now respects the LockFile setting, needed to
     avoid locking problems with NFS.  [Jeff Trawick]

  *) Fix segfault when worker MPM receives SIGHUP.
     [Ian Holsman, Aaron Bannert, Justin Erenkrantz]

  *) Fix bug that could potentially prevent the perchild MPM from
     working with more than one vhost/uid.  [Aaron Bannert]

  *) Change make install and apxs -i processing of DSO modules to 
     perform special handling on platforms where libtool doesn't install 
     mod_foo.so.  This fixes some wonkiness on HP-UX, Tru64, and AIX 
     which prevented standard LoadModule statements from working.
     [Jeff Trawick]

  *) Whenever mod_so is enabled (not just when there are DSOs for
     our modules), do whatever special magic is required for compiling/
     loading third-party modules.  This allows third-party DSOs to
     be used on an AIX build when there were no built-in modules
     built as DSOs.  (This should help on OS/390 and BeOS as well.)
     [Jeff Trawick]

  *) Allow apxs to be used to build DSOs on AIX without requiring the
     user to hard-code the list of import files.  (This should help
     on OS/390 and BeOS as well.)  [Jeff Trawick]
     
  *) Resolved segfault in mod_isapi when configuring with ISAPICacheFile.
     PR 8563, 8919  [William Rowe]
  
  *) Get binary builds working when libapr and libaprutil are built
     shared [Greg Ames]

  *) Get shared builds of libapr and libaprutil, as well as Apache DSOs,
     working on AIX.  [Aaron Bannert, Dick Dunbar <RLDunbar@pacbell.net>,
     Gary Hook <ghook@us.ibm.com>, Victor Orlikowski, Jeff Trawick]

  *) Fix the handling of SSI directives in which the ">" of the
     terminating "-->" is the last byte in a file [Brian Pane]

  *) Add back in the "suEXEC mechanism enabled (wrapper: /path/to/suexec)"
     message that we had back in apache-1.3 and still have scattered
     throughout our docs.  [Aaron Bannert]

  *) Prevent the Win32 port from continuing after encountering an
     error in the command line args to apache.  [William Rowe]

  *) On a error in the proxy, make it write a line to the error log
     [Ian Holsman]

  *) Various mod_ssl performance improvements [Doug MacEachern]

Changes with Apache 2.0.29

  *) Add buffering in core_output_filter to ensure that long
     lists of small buckets don't cause small packet writes.
     [Brian Pane, Ryan Bloom]

  *) Fix the installation target to make sure that the manual is 
     installed in the correct location.
     [Yoshifumi Hiramatsu <hiramatu@boreas.dti.ne.jp> and
      Gomez Henri <hgomez@slib.fr>]

  *) Fix the cmd command for mod_include.  When we are processing
     a cmd command, we do not want to use the r->filename to set
     the command name.  The command comes from the SSI tag.  To do this,
     I added a variable to the function that builds the command line
     in mod_cgi.  This allows the include_cmd function to specify
     the command line itself. [Ryan Bloom]

  *) Change open_logs hook to return a value, allowing you
     to flag a error while opening logs
     [Ian Holsman, Doug MacEachern]

  *) Change post_config hook to return a value, allowing you
     to flag a error post config
     [Ian Holsman, Jeff Trawick]

  *) Allow SUEXEC_BIN (the path to the suexec binary that is
     hard-coded into the server) to be specified to the configure
     script by the --with-suexec-bin parameter.  [Aaron Bannert]

  *) Fix segv in worker MPM following accept on pipe-of-death
     [Brian Pane]

  *) Add mod_deflate to experimental.  
     [Ian Holsman, Justin Erenkrantz]

  *) Bail out at configure time if an invalid MPM was specified.
     [jean-frederic clere <jfrederic.clere@fujitsu-siemens.com>]

  *) Prevent segv in ap_note_basic_auth_failure() when no AuthName is
     configured [John Sterling <sterling@covalent.net>]

  *) Fix apxs to use sbindir.  [Henri Gomez <hgomez@slib.fr>]

  *) Fix a problem with IPv6 vhosts.  PR #8118  [Jeff Trawick]

  *) Optimization for the BNDM string-search function in
     mod_include.  [Brian Pane]

  *) Fixed the behavior of the XBitHack directive.
     [Taketo Kabe <kabe@sra-tohoku.co.jp>, Cliff Woolley] PR#8804

  *) The threaded MPM for Unix has been removed.  Use the worker
     MPM instead.  [various]

  *) APR-ize the resolver logic in mod_unique_id.  This fixes a bug
     in logging the error from a failed DNS lookup.  [Jeff Trawick]

  *) Added the missing macros AP_INIT_TAKE13 and AP_INIT_TAKE123.
     [Cliff Woolley]

  *) Get mod_cgid killed when a MPM exits due to a fatal error.
     [Jeff Trawick]

  *) Fix a file descriptor leak in mod_include.  When we include a
     file, we use a sub-request, but we didn't destroy the sub-request
     immediately, instead we waited until the original request was
     done.  This patch closes the sub-request as soon as the data is
     done being generated.  [Brian Pane <bpane@pacbell.net>]

  *) Allow modules that add sockets to the ap_listeners list to
     define the function that should be used to accept on that
     socket.  Each MPM can define their own function to use for
     the accept function with the MPM_ACCEPT_FUNC macro.  This
     also abstracts out all of the Unix accept error handling
     logic, which has become out of synch across Unix MPMs.
     [Ryan Bloom]

  *) Fix a bug which would cause the response headers to be omitted
     when sending a negotiated ErrorDocument because the required
     filters were attached to the wrong request_rec.
     [John Sterling <sterling@covalent.net>]

  *) Remove commas from the end of the macros that define
     directives that are used by MPMs.  Prior to this patch,
     you would use these macros without commas, which was unlike
     the macros for any other directives.  Now, the caller provides
     the comma rather than the macro providing it.  This makes
     the macros look more like the rest of the directives.
     [Ryan Bloom and Cliff Woolley]

  *) Add 'redirect-carefully' environment option to disable sending
     redirects under special circumstances.  This is helpful for 
     Microsoft's WebFolders when accessing a directory resource via
     DAV methods.  [Justin Erenkrantz]

  *) Begin to abstract out the underlying transport layer.
     The first step is to remove the socket from the conn_rec,
     the server now lives in a context that is passed to the
     core's input and output filters. This forces us to be very
     careful when adding calls that use the socket directly,
     because the socket isn't available in most locations.
     [Ryan Bloom]

  *) Really reset the MaxClients value in worker and threaded
     when the configured value is not a multiple of the number 
     of threads per child.  We said we did previously but we 
     forgot to. [Jeff Trawick]

  *) Add Debian layout.  [Daniel Stone <daniel@sfarc.net>]

  *) If shared modules are requested and mod_so is not available,
     produce a fatal config-time error.  [Justin Erenkrantz]

  *) Improve http2env's performance by cutting the work it has to
     do.  [Brian Pane <bpane@pacbell.net>]

  *) use new 'apr_hash_merge' function in mod_mime (performance fix)
     [Brian Pane <bpane@pacbell.net>]

Changes with Apache 2.0.28

  *) Fix infinite loop in mod_cgid.c.  
     [Dale Ghent <daleg@elemental.org>, Brian Pane <bpane@pacbell.net>]

  *) When no port is given in a "ServerName host" directive, the
     server_rec->port is now set to zero, not 80. That allows for
     run-time deduction of the correct server port (depending on
     SSL/plain, and depending also on the current setting of
     UseCanonicalName). This change makes redirections
     work, even with https:// connections. As in Apache-1.3, the
     connection's actual port number is never used, only the ServerName
     setting or the client's Host: setting. Documentation updated
     to reflect the change. [Martin Kraemer]

  *) Add a '%{note-name}e' argument to mod-headers, which works in
     the same way as mod_log_confg.  [Ian Holsman]

  *) Fix the spelling of the AP_MPMQ_MIN_SPARE_DAEMONS and
     AP_MPMQ_MAX_REQUESTS_DAEMON macros in ap_mpm.h and all standard
     MPMs.  [Cliff Woolley]

  *) Introduce htdbm, a user management utility for db/dbm authorization
     databases.  [Mladen Turk <mturk@mappingsoft.com>]

  *) Optimize usage of strlen and strcat in ap_directory_walk.
     [Brian Pane <bpane@pacbell.net>]

Changes with Apache 2.0.27

  *) Introduce an Apache mod_ssl initial configuration template 
     (ssl.conf, generated from ssl-std.conf).  [Ralf S. Engelschall]

  *) Fixed a memory leak in the getline parsing code that could
     be triggered by arbitrarily large header lines. Requests
     from the core input filter for single lines are now limited
     to HUGE_STRING_LEN (8192 bytes).  [Aaron Bannert]

  *) Fix a truncation bug in how we print the port on the Via: header. 
     The routine that prints the Via: header now takes a length for
     the port string.  [Zvi Har'El <rl@math.technion.ac.il>]

  *) Some syntax errors in mod_mime_magic's magic file can result
     in a 500 error, which previously was unlogged.  Now we log the
     error.  [Jeff Trawick]

  *) Add the support/checkgid helper app, which checks the run-time
     validity of group identifiers usable in the Group directive.
     [Ken Coar]

  *) Various --enable-so options have been fixed: --enable-so is
     treated as "static"; explicit --enable-so=shared issues an error;
     and explicit --enable-so fails with error on systems without
     APR_HAS_DSO.  [Aaron Bannert]

  *) Fix a segfault in the core input filter when the client socket
     gets disconnected unexpectedly.  [Cliff Woolley]

  *) Fix the reporting for child processes that die.  This removes
     all of the non-portable W* macros from Apache. 
     [Jeff Trawick and Ryan Bloom]

  *) Win32: Track and display "Parent Server Generation:" in
     mod_status output. The generation will be bumped at
     server graceful restart, when the child process exits
     by hitting MaxRequestsPerChild or if the child 
     process exits abnormally. [Bill Stoddard]

  *) Win32: Fix problem where MaxRequestsPerChild directive was
     not being picked up in favor of the default. Enable
     the parent to start up a new child process immediately upon
     the old child starting shutdown.
     [Bill Stoddard]

  *) Fix some bungling of the remote port in rfc1413.c so that 
     IdentityCheck retrieves the proper user id instead of failing
     and thus always returning "nobody."  
     [Dick Streefland <Dick.Streefland@xs4all.nl>]

  *) Introduced thread saftey for mod_rewrite's internal cache.
     [Brian Pane <bpane@pacbell.net>]

  *) Simplified mod_env's directives to behave as most directives are
     expected, in that UnsetEnv will not unset a SetEnv and PassEnv 
     directive following that UnsetEnv within the same container.
     Also provides a runtime startup warning if a PassEnv configured 
     environment value is undefined.  [William Rowe]

  *) The worker MPM is now completely ported to APR's new lock API. It
     uses native APR types for thread mutexes, cross-process mutexes,
     and condition variables.  [Aaron Bannert]

  *) Sync up documentation to remove all references to the now deprecated
     Port directive.  [Justin Erenkrantz]

  *) Moved all ldap modules from the core to httpd-ldap sub-project
     [Ryan Bloom]

  *) Exit when we can't listen on any of the configured ports.  This
     is the same behavior as 1.3, and it avoids having the MPMs to
     deal with bogus ap_listen_rec structures.  [Jeff Trawick]

  *) Cleanup the proxy code that creates a request to the origin
     server.  This change adds an optional hook, which allows modules
     to gain control while the request is created if the proxy module
     is loaded.  The purpose of this hook is to allow modules to add
     input and/or output filters to the request to the origin.  While
     I was at it, I made the core use this hook, so that proxy request
     creation uses some of the code from the core.  This can still be
     greatly improved, but this is a good start.  [Ryan Bloom]

Changes with Apache 2.0.26

  *) Port the MaxClients changes from the worker MPM to the threaded
     MPM.  [Ryan Bloom]

  *) Fix mod_proxy so that it handles chunked transfer-encoding and works
     with the new input filtering system.  [Justin Erenkrantz]

  *) Introduce the MultiviewsMatch directive, to allow the operator
     to be flexible in recognizing Handlers and Filters filename
     extensions as part of the Multiviews matching logic, strict with
     MultiviewsMatch NegotiatedOnly to accept only filename extentions 
     that designate negotiated parameters, (content type, charset, etc.)
     or MultiviewsAll for the 1.3 behavior of matching any files, even
     if they have unregistered extensions.  [William Rowe]

  *) Fixed the configure script to add a LoadModule directive to
     the default httpd.conf for any module that was compiled
     as a DSO.  [Aaron Bannert <aaron@clove.org>]

  *) rewrite mod_ssl input filtering to work with the new input filtering
     system.  [Justin Erenkrantz]

  *) prefork: Don't segfault when we are able to listen on some but
     not all of the configured ports.  [Jeff Trawick]

  *) Build mod_so even if no core modules are built shared.
     [Aaron Bannert <aaron@clove.org>]

  *) Introduce ap_directory_walk rewrite (with further optimizations
     required) to adapt to the ap_process_request_internal() changes.
     Optimized so subrequests and redirects now reuse previous section 
     merges, until we mismatch with the original directory_walk, and
     precomputed r->finfo results will cause directory_walk to skip
     the most expensive phases of the function.  [William Rowe]

  *) Allow ApacheMonitor to connect to and control Apache on other 
     WinNT/2K machines.   [Mladen Turk <mturk@mappingsoft.com>]

  *) Remove the Port directive.  In it's place, the Listen directive
     is now a required directive, which tells Apache what port to
     listen on.  The ServerName directive has also been extended
     to accept an optional port.  If the port is specified to the
     ServerName, the server will report that port whenever it
     reports the port that it is listening on.  This change was
     made to ease configuration errors that stem from having a Port
     directive, and a Listen directive.  In that situation, the server
     would only listen to the port specified by the Listen command,
     which caused a lot of confusion to users.  [Ryan Bloom]

  *) Added mod_mime_magic, mod_unique_id and mod_vhost_alias to the Win32
     build, as loadable modules.  [William Rowe]

  *) Fix --enable-mods-shared processing.  If most is specified,
     then all modules that can be compiled as shared modules are.
     [Aaron Bannert <aaron@clove.org>]

  *) Update the mime.types file to map video/vnd.mpegurl to mxu
     and add commonly used audio/x-mpegurl for m3u extensions.        
     [Heiko Recktenwald <uzs106@uni-bonn.de>, Lars Eilebrecht]

  *) Eliminate the depreciated r->content_language, in favor of the array
     r->content_languages introduced many years ago.  Module authors must
     substantially overhaul their modules, so this needs to be upgraded
     if the module still relied on backwards-brokeness.  [William Rowe]

  *) Allow configure help strings to work with autoconf 2.50+ and 2.13.
     [Justin Erenkrantz]

  *) Rewrite the input filtering mechanisms to consolidate and reorganize
     code.  In short, core_input_filter does something now and
     ap_http_filter is now only concerned with HTTP.  [Justin Erenkrantz]

  *) Update the Win32 build to re-absorb mod_proxy and family.
     [William Rowe]

  *) Resolved the build failure on Win32 using MSVC 5.0 (without the
     current SDK.)  [William Rowe]

  *) Some style changes to the code that does ProxyErrorOverride. Fixed
     config merge behaviour. [Graham Leggett]

  *) Allow support programs to be compiled against a static version
     of libapr.  This allows the smaller support programs to be 
     relocated.  [Aaron Bannert <aaron@clove.org>]

  *) Update the mime.types file to the registered media types as
     of 2001-09-25, and add mapping for xsl extension [Mark Cox]

  *) Fix MaxClients in the Worker MPM, so that it specifies the maximum
     number of clients that can connect at the same time, instead of
     specifying the maximum number of child processes.
     [Aaron Bannert <aaron@clove.org>]

  *) Switch proc_pthread AcceptMutex configuration directive to pthread to 
     be consistent with 1.3.  [Justin Erenkrantz]

  *) Cache apr_explode_localtime() value for 15 seconds.
     [Brian Pane <bpane@pacbell.net>]

  *) Fix mod_include to not return ETag or Last-Modified headers.
     [Ian Holsman <ianh@cnet.com>]

  *) Fix worker MPM's scoreboard logic.  [Aaron Bannert <aaron@clove.org>]

  *) Eliminate the wasteful run-time conversion of method names from strings 
     to numbers in places where the methods are known at compile time.  
     [Brian Pane <bpane@pacbell.net>]

  *) Turn the worker MPM's queue into a LIFO.  This may
     improve cache-hit performance under some conditions.
     [Aaron Bannert <aaron@clove.org>]

  *) Switch back to SIGUSR1 for graceful restarts on all platforms that
     support it.  [Justin Erenkrantz]

  *) Cleanup the worker MPM.  We no longer re-use transaction
     pools.  This incurs less overhead than shuffling the pools
     around so that they can be re-used.  Remove one of the
     queue's condition variables.  We just redefined the API to
     state that you can't try to add more stuff than you allocated
     segments for.  [Aaron Bannert <aaron@clove.org>]

  *) Fix SSL VPATH builds [Cody Sherr <csherr@covalent.net>]

  *) Fixed persistent connections when a request contains a body.
     [Greg Stein]

  *) mod_dav uses a new API to speak to the backend provider for dead
     property management. [Greg Stein]

  *) Remove the Win32 script-processing exception from mod_cgi, and
     roll build_command_line/build_argv_list into a unified, overrideable
     ap_cgi_build_command optional function.  [William Rowe]

  *) Rewrite find_start_sequence to use a better search algorithm
     to find the start tag.  [Justin Erenkrantz]

  *) Fix a seg fault in mod_include.  When we are generating an
     internal redirect, we must set r->uri to "", not a bogus
     string, and not NULL.  [Ryan Bloom]

  *) Optimized location_walk, so subrequests, redirects and second passes
     now reuse previous section merges on a <Location > by <Location >
     basis, until we mismatch with the original location_walk. 
     [William Rowe]

  *) Back out the 1.45 change to util_script.c.  This change made
     us set the environment variable REQUEST_URI to the redirected
     URI, instead of the originally requested URI.
     [Taketo Kabe <kabe@sra-tohoku.co.jp>]

  *) Make mod_include do lazy evaluation of potentially expensive to
     compute variables.  [Brian Pane <bpane@pacbell.net>]

  *) Fix logging of bytes sent for HEAD requests.  %b and %B should
     log either - or 0, before this patch, they were both logging
     the file size.  [Taketo Kabe <kabe@sra-tohoku.co.jp>]

  *) Make mod_include check for BYTE_CHECK_THRESHOLD per bucket rather 
     than per character.  [Brian Pane <bpane@pacbell.net>]

  *) Normalize the primary request, redirects and sub-requests to
     run the same ap_process_request_internal for consistency in
     robustness, behavior and security.  [William Rowe]

  *) Fix a segfault with mod_include when r->path_info is not set
     (which is the case with mod_proxy).  [Ian Holsman <ianh@cnet.com>]

  *) Add -X functionality back.  This indicates to all MPMs and any other
     part of Apache that it should run in "debug" mode.  [Justin Erenkrantz]

  *) Some initial support for the cygwin platform [prefork only].
     This is not to be confused with support for the WinNT/Win32
     platform, which is the recommended configuration for native
     Win32 users.  The cygwin platform support is recommended for
     cygwin platform users. [Stipe Tolj <tolj@wapme-systems.de>]

  *) Changed syntax of Set{Input|Output}Filter.  The list of filters
     must be semicolon delimited (if more than one filter is given.)
     The Set{Input|Output}Filter directive now overrides a parent
     container's directive (e.g. SetInputFilter in <Directory /web/foo>
     will override any SetInputFilter directive in <Directory /web>.)
     This new syntax is more consistent with Add{Input|Output}Filter
     directives defined in mod_mime.  Also cures a bug in prior releases
     where the Set{Input|Output}Filter directive would corrupt the 
     global configuration if the multiple directives were nested.
     [William Rowe]

  *) Cured what's ailed mime for quite some time.  If an AddSomething
     was given in the configuration (Language, Charset, Handler or
     Encoding) Apache would set the content type as given by AddType, 
     but refused to check the mime.types file if AddType wasn't given 
     for that specific extension.  Setting the AddHandler for .html 
     without setting the AddType text/html html would cause Apache to 
     use the default content type.  [William Rowe]

  *) Added some bulletproofing to memory allocation in the LDAP cache
     code. [Graham Leggett]

Changes with Apache 2.0.25

  *) Move the installed /manual directory out of the /htdocs/ tree, so
     that it can be kept more independently from the remaining document
     root. The "Alias /manual ..." already allowed for easy projection
     into existing private document trees. [Martin Kraemer]

  *) Add specified user attributes to the environment when using
     mod_auth_ldap. This allows you to use mod_include to embed specified
     user attributes in a page like so:
     Hello <!--#echo var="AUTHENTICATE_CN"-->, how are you?
     [Graham Leggett]

  *) Fix a performance problem with the worker MPM.  We now create
     transaction pools once, and re-use them for each connection.
     [Aaron Bannert <aaron@clove.org>]

  *) Modfied mod_mime to prevent mod_negotation from serving a multiview
     of a 'handler' or 'filter', so that any filename extension that does 
     not contribute to the negotiated metadata can't be served without
     an explicit request.  E.g., if the .Z extension is associated with
     an unzip filter, the user request somefile.Z.html, mod_negotiation
     won't serve it.  It can serve somefile.Z.html when somefile.Z is
     requested, since the .Z extension is explictly requested, if the
     .html extension is associated with ContentType text/html.
     [William Rowe]

  *) Introduce the AddInputFilter filter[;filter...] ext [ext...]
     and corresponding AddOutputFilter syntax, to insert one or more 
     filters by mod_mime filename extension processing.
     [William Rowe]

  *) Fix a growing connection pool in core_output_filter() for 
     keepalive requests.  [Jeff Trawick]

  *) Moved split_and_pass_pretag_buckets back to being a
     macro at Ryans's request. Removed the return from it
     by setting and returning a return code instead. Updated
     the code to check the return code from the macro and
     do the right thing. [Paul J. Reder]

  *) Fix a segfault when a numeric value was received for Host:.
     [Jeff Trawick]

  *) Add a function ap_remove_input_filter.  This is to match
     up with ap_remove_output_filter.  [Ryan Bloom]

  *) Clean up location_walk, so that this step performs a minimum
     amount of redundant effort (it must be run twice, but it will no
     longer reparse all <Location > blocks when the request uri
     hadn't changed.)  [William Rowe]

  *) Eliminate proxy: (and all other 'special') processing from the
     ap_directory_walk() phase.  Modules that want to use special
     walk logic should refer to the mod_proxy map_to_location example,
     with it's proxy_walk and proxysection implementation.  This makes
     either directory_walk flavor much more legible, since that phase
     only runs against real <Directory > blocks.
     [William Rowe]

  *) SECURITY: Fix a security problem in mod_include which would allow
     an SSI document to be passed to the client unparsed.
     [Cliff Woolley, Brian Pane]

  *) Introduce the map_to_storage hook, which allows modules to bypass
     the directory_walk and file_walk for non-file requests.  TRACE
     shortcut moved to http_protocol.c as APR_HOOK_MIDDLE, and the
     directory_walk/file_walk happen as APR_HOOK_VERY_LAST in core.c.
     [William Rowe]

  *) Add the ability for mod_include to add the INCLUDES filter
     if the file is configured for the server-parsed handler.
     This makes the configuration for .shtml files much easier
     to understand, and allows mod_include to honor Apache 1.3
     config files.   Based on Doug MacEachern's patch to PHP
     to do the same thing.  [Ryan Bloom]

  *) force OpenSSL to ignore process local-caching and to always
     get/set/delete sessions using mod_ssl's callbacks
     [Madhusudan Mathihalli <madhusudan_mathihalli@hp.com>,
      Geoff Thorpe <geoff@geoffthorpe.net>]

  *) Make the worker MPM shutdown and restart cleanly.  This also
     cleans up some race conditions, and gets the worker using
     pools more cleanly.  [Aaron Bannert <aaron@clove.org>]

  *) Implement CRYPTO_set_locking_callback() in terms of apr_lock
     for mod_ssl
     [Madhusudan Mathihalli <madhusudan_mathihalli@hp.com>]

  *) Fix for mod_include. Ryan's patch to check error
     codes put a return in the wrong place. Also, the
     include handler return code wasn't being checked.
     I don't like macros with returns, so I converted
     SPLIT_AND_PASS_PRETAG_BUCKETS into a function.
     [Paul J. Reder <rederpj@raleigh.ibm.com>]

  *) fix segv in mod_mime if no AddTypes are configured
     [John Sterling <sterling@covalent.net>]

  *) Enable ssl client authentication at SSL_accept time
     [Madhusudan Mathihalli <madhusudan_mathihalli@hp.com>]

  *) Fix a segfault in mod_include when the original request has no
     associated filename (e.g., we're filtering the error document for
     a bad URI).  [Jeff Trawick]

  *) Fix a storage leak (a strdup() call) in mod_mime_magic.  [Jeff Trawick]

  *) The prefork and OS/2 MPMs are overwriting the pid file when a second copy
     of httpd is started and shuts down due to socket conflict. Moving the
     call to ap_log_pid solves the problem.

  *) Changed the late-1.3 log_config substitution %c to %X, to log the
     status of the closed connection, as it conflicts with the far more
     common, historical ssl logging directive %...{var}c.  [William Rowe]

  *) Added the common error/ tree to the build/install targets 
     (similar to the common icons/ tree) for the multi-language error 
     messages that Lars committed earlier.  [William Rowe]

  *) Added a multi process, multi threaded OS/2 MPM mpmt_os2.  [Brian Havard]

  *) Added a default commented-out mod_ldap and mod_auth_ldap
     configuration to httpd-std.conf and httpd-win.conf
     [Graham Leggett]

  *) Added documentation for mod_ldap and mod_auth_ldap.
     [Graham Leggett]

  *) Enabled negative caching on attribute comparisons in the LDAP cache.
     Fixed a problem where the default cache TTL was set in milliseconds
     not microseconds causing the cache to time out almost immediately.
     [Graham Leggett]

  *) Fixed all the #if APR_HAS_SHARED_MEMORY checks within the LDAP
     module code to follow APR. [Graham Leggett]

  *) Fixed LDAP cleanup on graceful restarts. LDAP connections are now
     cleaned up when the connection pool pool is cleaned up.
     [Graham Leggett]

  *) Fix a minor issue with Jeff Trawick's mod_include
     patch. Without this patch, the code will just allocate
     more bytes in get_combined_directive than are needed.
     [Paul Reder]

  *) Added the LDAP authentication module mod_auth_ldap.
     [Dave Carrigan <dave@rudedog.org>, Graham Leggett]

  *) Added the LDAP cache and connection pooling module mod_ldap.
     [Dave Carrigan <dave@rudedog.org>, Graham Leggett]

  *) Fix --enable-modules=all breakage with mod_auth_db and mod_auth_digest
     by allowing a module to disable itself if its prerequisites are not
     met.  [Justin Erenkrantz]

Changes with Apache 2.0.24

  *) Fix a couple of issues in mod_include when the tag appeared at
     offsets near 8192 in the file being parsed.  [Jeff Trawick]

  *) Fix an assertion failure in mod_ssl when the keepalive timeout is  
     reached.  [Jeff Trawick]

  *) Numerous improvements to the Win32 build system.  Introduced command line
     builds without requiring .mak files for MSVC 6.0 and later versions.
     Improved .dsp file compatibility for both Visual Studio 5.0 and 6.0 users.
     [William Rowe]

  *) Assorted corrections and improvements to the winnt_mpm startup code.  Better
     reporting of uninstalled services and other error conditions, and changed the 
     default service name to Apache2.  [William Rowe]

  *) Numerous improvements to the Win32 ApacheMonitor utility, including winnt_mpm 
     compatibility with existing Apache 1.3 Win32 Apache management utilites.  
     [Mladen Turk <mturk@mappingsoft.com>, William Rowe]

  *) Fixed the segfaults in mod_mime introduced by hash tables in 2.0.20.
     [William Rowe, Greg Ames]

  *) Rounded out the mod_mime Add/Remove pairs by adding RemoveLanguage
     and RemoveCharset directives.  [William Rowe]

  *) The Unix MPMs other than perchild now allow child server 
     processes to use the accept mutex when starting as root and 
     using SysV sems for the accept mutex.  Previously, this 
     combination would lead to fatal errors in the child server 
     processes.  perchild can't use SysV sems because of security
     issues.  [Jeff Trawick, Greg Ames]

  *) Added Win32 revision stamp resources to all http binaries
     (including modules/ and support/ tools.)  PR7322  [William Rowe]

  *) Fix ap_rvprintf to support more than 4K of data at one time.
     [Cody Sherr <csherr@covalent.net>]

  *) We have always used the obsolete/deprecated Netscape syntax
     for our tracking cookies; now the CookieStyle directive
     allows the Webmaster to choose the Netscape, RFC2109, or
     RFC2965 format.  The new CookieDomain directive allows the
     setting of the cookie's Domain= attribute, too.  PR #s 5006,
     5023, 5920, 6140 [Ken Coar]

  *) Tweak server/Makefile so that the rules for generating exports.c
     are compatible with make utilities which don't expand wildcards
     in a dependency list (e.g., OS/390 make, certain levels of GNU
     make).  [Jeff Trawick]

  *) Install the SSL headers.  [John Sterling <sterling@covalent.net>]

  *) Begin to sanitize the MPM configuration directives.  Now, all
     MPMs use the same functions for all common MPM directives.  This
     should make it easier to catch all bugs in these directives once.
     [Cody Sherr <csherr@covalent.net>]

  *) Close a major resource leak.  Every time we had issued a
     graceful restart, we leaked a socket descriptor.
     [Ryan Bloom]

  *) Fix a problem with the new method code.  We need to cast
     the 1 to an apr_int64_t or it will be treated as a 32-bit
     integer, and it will wrap after being shifted 32 times.
     [Cody Sherr <csherr@covalent.net> and Ryan Morgan <rmorgan@covalent.net>]

  *) Fix a bug in mod_expires.  Previous to this patch, if you
     told mod_expires to add 604800 seconds to the last-modified
     time, it actually added 604800 usec's to the last-modified time,
     so that when looking at the response it looked like nothing
     had been done.  The root of the problem was that we always compute
     time in usec's, but we ask users to input sec's.  This means we
     need to convert to usec's before using those values.
     [Ryan Bloom]

  *) The worker MPM now handles shutdown and restart requests.  It
     definitely isn't perfect, but we do stop the servers correctly.
     The biggest problem right now is that SIGHUP causes the server to
     just die.  [Ryan Bloom]

Changes with Apache 2.0.23

  *) Use the prefork MPM by default on Unix.  [various]

  *) Added a systray icon monitor application for Win32.
     [Mladen Turk <mturk@mappingsoft.com>]

  *) mod_rewrite: Fix the line ending on some non-Unix systems for 
     messages written to the rewrite log.  
     [Richard Labennett <rlabenn@us.ibm.com>]

  *) All mod_autoindex query parsing is now quietly quashed with the 
     IndexOption IgnoreClient.  The IndexOption SuppressColumnSorting 
     still drops the column sort <a href>'s for the column headers, but 
     IgnoreClient is required to ignore these Query options entirely.  
     [William Rowe]

  *) Introduced new mod_autoindex query argument parsing for F=[0|1|2]
     to allow the client to select plain, FancyIndexing or HTMLTable
     formatting, V=[0|1] to inhibit or enable version sorting, and 
     P=pattern to return only specific files.  The old Query Arguments
     were reorganized as C=f for sorting column 'f' (same N, D, S, or M
     as before), and O=A|D for ordering ascending or descending.  
     [William Rowe]

  *) Fixed an error in mod_include's directive parsing routines which
     caused #if, #elif, and #else expressions containing backslashes
     to be improperly evaluated.  [Cliff Woolley]

  *) Introduced new mod_autoindex IndexOptions flags: SuppressIcon to 
     drop the icon column, SuppressRules to drop the <hr> elements, 
     and HTMLTable to create rudimentary HTML table listings (implies 
     FancyIndexing).  [William Rowe]

  *) Re-introduced the mod_autoindex IndexOptions flag TrackModified
     from Apache 1.3.15.  This is needed for two reasons, first, given
     multiple machines within a server farm, ETags and Last-Modified 
     stamps won't correspond from machine to machine, and second, many 
     Unixes don't capture changes to the date or time stamp of existing 
     files, since these don't modify the dirent itself.  [William Rowe]

  *) Re-introduced the mod_autoindex IndexOptions flag FoldersFirst 
     and DirectoryWidth options from Apache 1.3.10. 
     [William Rowe, Ken Coar]

  *) Eliminated FancyIndexing directive, deprecated early in Apache
     1.3 by the IndexOptions FancyIndexing syntax.  [William Rowe]

  *) mod_autoindex now excludes any file names that would result in
     an error, other than a success or redirect.  Also optimized
     the parent directory, always included except in the URI '/'.
     [William Rowe]

  *) Refactored mod_negotiation and mod_mime to help mod_dir accept
     negotiated index pages, and prevent the server from defaulting
     to an autoindex of the directory.  mod_negotiation will now die
     with a 500 Internal Error if it could match some filenames 
     (e.g. for mod_dir) but none can be served.  mod_negotation now
     refuses to serve any file with an extention that mod_mime doesn't
     recognize, and wasn't part of the request.  [William Rowe]

  *) Eliminate mod_cgi's handling of .exe files without the .exe file
     extension.  This is already handled by multiviews, if the admin
     wishes to AddHandler .exe or define a content type handler and 
     associate .exe files with that content type.  Multiviews must be
     enabled to allow these to be served.  [William Rowe]

  *) Speed up the server's response to a spike in incoming workload
     or restarts by assigning empty scoreboard slots to new processes
     when they are available.  [Greg Ames]

  *) Add a handler to mod_includes.c.  This handler is designed to
     implement the XbitHack directive.  This can't be done with a
     fixup, because we need to check the content-type, which is
     only available in the handler phase.  [Ryan Bloom]

  *) Make the includes filter check return codes from filters lower in
     the filter chain.  If a lower level filter returns an error, then
     the request needs to stop immediately.  This allows mod_include to
     stop parsing data once a lower filter recognizes an error.
     [Ryan Bloom]

  *) Add the ability to extend the methods that Apache understands
     and have those methods <limit>able in the httpd.conf. It uses 
     the same bit mask/shifted offset as the original HTTP methods 
     such as M_GET or M_POST, but expands the total bits from an int to 
     an ap_int64_t to handle more bits for new request methods than 
     an int provides.  [Cody Sherr <csherr@covalent.net>]

  *) Fix broken mod_mime behavior in merging its arguments.  Possible
     cause of unexplicable crashes introduced in 2.0.20.  [William Rowe]

  *) Solve many mod_ssl porting issues (too many to detail) with 
     help from the whole team, but most notably [Ralf S. Engelschall, 
     Madhusudan Mathihalli <madhusudan_mathihalli@hp.com>, 
     Doug MacEachern, William Rowe, Cliff Woolley]

  *) More stall fixes for the threaded & worker mpm's.
     Make mod_status output more accurate.  Don't
     count workers in processes which aren't actively
     serving requests. [Greg Ames]
     
  *) Win32: Get SSI exec cgi tag working. [Bill Stoddard]

  *) Add a single listener/multiple worker MPM.  This MPM is
     definately not fully correct, but it allows us to solve many
     of the problems that exist in the threaded MPM.  This is a 
     modified version of the threaded MPM.  [Ryan Bloom]

  *) Improve content generation throughout Apache, providing closer
     compliance with HTML 3.2, HTML 4.01 Transitional and XHTML 1.0
     Transitional specifications.  [William Rowe]

Changes with Apache 2.0.22
  
  *) Fix a problem where the threaded MPM stalls after restarts or
     segfaults.  Also prevent multiple active processes from using
     the same scoreboard slot.  [Greg Ames]

  *) Apache/Win32 now fills in the service description with Apache's
     server version string, including loaded and advertised modules.
     [William Rowe]

  *) Improved support for the Win32 build, to recover gracefully from
     missing apr or apr-util directories or the awk interpreter, 
     create the proper cgi-bin examples, including a test-cgi.bat, and 
     fix the perl shebang line for printenv.pl, when installing from 
     the build environment.  [William Rowe]

  *) Fix a segfault in threaded.c caused by passing uninitialized
     apr_thread_t * to apr_thread_join().  [Jeff Trawick]

  *) Use new APR number conversion functions to reduce CPU consumption 
     when setting the content length, and in mod_log_config.
     [Brian Pane]
     
  *) Fix problem reported by Taketo Kabe <kabe@sra-tohoku.co.jp>
     where HEAD response headers were being repeated twice for
     files greater than 32K bytes (4*AP_MIN_BYTES_TO_WRITE). This
     problem in the http_header filter was exposed by the recent rewrite
     of the content_length filter. [Taketo Kabe, Bill Stoddard]

  *) Fix seg faults in mod_status with ExtendedStatus enabled, after
     restarts.  A garbage pointer to a vhost's server_rec from the
     previous generation was being left around under certain
     conditions. [Greg Ames]

  *) Fix a cosmetic problem with mod_include.  Non-existant SSI vars
     used to appear as '(none', without the closing paren.
     [Günter Knauf <eflash@gmx.net>]

  *) Improve the exports generating awk script.  In the past, we had
     work around problems in the awk script by avoiding some #if and
     #ifdefs.  This has bitten us many times in generating the exports.c
     file.  This improvement allows corrects the header file parsing.
     [Sander Striker <striker@apache.org>]

Changes with Apache 2.0.21

  *) Resolve the Win32 htpasswd bug, where a file that existed would be
     overwritten, regardless of the -c flag.
     [William Rowe, Mladen Turk <mladen.turk@mail.inet.hr>]

  *) Introduce connection sub-pools into ab.  Truncating the lifetime
     of these allocations means that ab no longer perpetually grows
     its working set, running out of memory on large request attempts.
     [William Rowe]

  *) Make scoreboard creation a hook.  This allows management
     modules to have access to the scoreboard at the time that it is
     created, and at every restart request.  
     [Cody Sherr <csherr@covalent.net>]

  *) Changed AP_MPMQ_MAX_DAEMONS to refer to MaxClients and
     added an AP_MPMQ_MAX_DAEMON_USED to refer to the highest
     daemon index actually used in the scoreboard. I also
     updated the pertinent calls. [Paul J. Reder]

  *) Win32: Prevent listening sockets from being inherited by
     the Apache child process, CGI scripts, rotatelog process
     etc.  If the Apache child process segfaults, any processes 
     that the child started are not reaped. Prior to this fix,
     these processes inherited the listening sockets which sometimes
     prevented the restarted Apache child process from accepting
     connections (ie, the server would hang). 
     [Bill Stoddard]

  *) Provide vhost and request strings when ExtendedStatus is on.
     [Greg Ames]

  *) Fix some issues with the pod and prefork: check the pod *after*
     processing a connection so that a server processing a time-
     consuming request bails out as soon as practical; when the
     parent process wakes up a server process via connect(), use an
     APR timeout on the connect() so that we don't hang for a long
     time if there aren't server processes around to do accept().
     [Jeff Trawick, Greg Ames]

  *) Performance improvement to mod_mime.c. find_ct() in mod_mime, 
     spends a lot of time in apr_table_get calls.  Using the default 
     httpd.conf, the tables for languages and charsets are somewhat
     large, so the time spent scanning them on each request is
     significant. Replacing the tables with hash tables provides
     a nice speedup. [Brian Pane <bpane@pacbell.net>]

  *) Add two functions to allow modules to access random parts of the
     scoreboard.  This allows modules compiled for one MPM to access the
     scoreboard, even if it the server was compiled for another MPM.
     [Harrie Hazewinkel <harrie@covalent.net>]

Changes with Apache 2.0.20

  *) Fix problem in content-length filter where the filter would
     buffer all the output from a CGI before sending any bytes
     down the filter stack to the network. This problem would cause
     significant memory consumption if the CGIs generated
     lots of bytes. [Bill Stoddard]
  
  *) Get non-blocking CGI pipe reads working with the bucket brigades.
     [Bill Stoddard]

  *) Fix seg fault on Windows when serving files cached with mod_file_cache.
     [Bill Stoddard]

  *) Fix a bug in the threaded MPM that would cause it to kill off all
     workers immediately after starting if the number of workers started
     was above a certain threshold.  [Ryan Bloom, Bill Stoddard]

Changes with Apache 2.0.19

  *) Fix problem with threaded MPM.  The problem was that if each child
     process was busy serving a single long-lived request and the server
     was sent a graceful restart signal, the server would stop serving
     requests.  This would happen because each child process would wait to
     die until the last thread was done, and the parent wouldn't spawn any
     new children until a process died.  Now, the parent looks at the fact
     that the children are dying gracefully, and starts new children.
     Those new children only start enough threads to compliment the number
     of threads in the other child process that shares the same spot in
     the scoreboard.  In this way, we make sure to never go over
     MaxClients.  [Ryan Bloom]

  *) modified mod_negotiation and mod_autoindex to speed up by almost a
     factor of two on apr_dir_read()-enhanced platforms, such as Win32
     and OS2, by calling ap_sub_request_lookup_dirent() with the results
     already provided by apr_dir_read().  [William Rowe]

  *) mod_file_cache is now more robust to filtering and serves requests
     slightly more efficiently.  [Cliff Woolley]

  *) Fix problem handling FLUSH bucket in the chunked encoding filter.
     Module was calling ap_rwrite() followed by ap_rflush() but the 
     served content was not being displayed in the browser. Inspection
     of the output stream revealed that the first data chunk was
     missing the trailing CRLF required by the RFC.  [Bill Stoddard]

  *) apxs no longer generates ap_send_http_header() in the example handler

  *) Fix an ab problem which could cause a divide-by-zero exception
     with certain invocations (e.g., ab -k -c 6 -n 100 localhost/).
     [Ian Holsman <ianh@cnet.com>]

  *) Solve case-insensitive platforms' confusion about negotiated
     filenames, allowing files of differnt case to match in choosing
     the document to serve.  [William Rowe]

  *) Fix brokenness when ThreadsPerChild is higher than the built-in
     limit.  We left ap_threads_per_child at the higher value which
     led to segfaults when doing certain scoreboard operations.
     [Jeff Trawick]

  *) Fix seg faults and/or missing output from mod_include.  The
     default_handler was using the subrequest pool for files and
     MMAPs, even though the associated APR structures typically 
     live longer than the subrequest. [Greg Ames]
  
  *) Extend mod_setenvif to support specifying regular expressions
     on the SetEnvIf (and SetEnvIfNoCase) directive attribute field.
     Example:  SetEnvIf ^TS*  [a-z].* HAVE_TS 
     will cause HAVE_TS to be set if any of the request headers begins 
     with "TS" and has a value that begins with any character in the
     set [a-z]. [Bill Stoddard]

  *) httpd children now re-bind themselves to a random CPU on
     multiprocessor systems on AIX via bindprocessor() in 2.0.
     [Victor J. Orlikowski]

  *) Fix htdigest. It would go into a loop in getline when adding 
     a second user. [Bill Stoddard]

  *) Win32 platforms now fully support mod_userdir options.  [Will Rowe]

  *) Automatically generate httpd.exp for AIX.
     DSOs now work again on AIX in 2.0
     [Victor J. Orlikowski]

  *) Add a new request hook, error_log.  This phase allows modules
     to act on the error log string _after_ it has been written
     to the error log.  The goal for this hook is to allow monitoring
     modules to send the error string to the monitoring agent.
     [Ryan Bloom]

  *) Modify mod_echo to make it use filters for input and output.
     [Ryan Morgan <rmorgan@covalent.net>]

  *) Extend mod_headers to support conditional driven Header 
     add, append and set. Use SetEnvIf to set an envar and conditionally
     add/append/set headers based on this envar thusly:

     SetEnvIf TSMyHeader value HAVE_TSMyHeader
     Header add MyHeader "%t %D" env=HAVE_TSMyHeader

     If the request contains header "TSMyHeader: value" then header
     MyHeader: "t=xxxxxxxxxx D=yyyy" will be sent on the response.
     [Bill Stoddard]

  *) Extend mod_headers to support using format specifiers on Header
     add, append and set header values. Two format specifiers are supported:

     %t - reports, in UTC microseconds since the epoch, when the
          request was received.

     %D - reports the time, in microseconds, between when the request was 
          received and the response sent. 

     Examples:
     Header add MyHeader "This request served in %D microseconds. %t"

     results in a header being added to the response that looks like this:
     
     MyHeader: This request served in D=5438 microseconds. t=991424704447256

     [Bill Stoddard]

  *) Fix reset_filter().  We need to be careful how we remove filters.
     If we set r->output_filters to NULL, we also have to reset the
     connection's filters.  [John Sterling]

  *) Optimise reset_filter() in http_protocol.c. [Greg Stein]

  *) Add a check to ap_die() to make sure the filter stack is sane and
     contains the correct basic filters when an error occurs. This fixes
     a problem where headers are not being sent on error. [John Sterling]

  *) New Header directive 'echo' option. "Header echo regex" will
     cause any headers received on the request that match regex to be
     echoed to (included in) the response headers.
     [Bill Stoddard]

  *) include/ap_compat.h tested and set APR_COMPAT_H instead of AP_COMPAT_H.
     This prevented the inclusion of apr_compat.h.  PR #7773
     [Oleg Broytmann <phd@phd.pp.ru>]

  *) Moved util_uri to the apr-util library.  This required a bunch of
     apr_name changes for the uri utility functions.  [Justin Erenkrantz]

  *) Move the addition of default AP_HTTP_HTTP_HEADER filters to the
     insert_filter phase so that other filters are not bypassed by default.
     [Graham Leggett]

  *) Reimplement mod_headers as an output filter. mod_headers can now
     add custom headers to inbound requests using the RequestHeader directive
     and to responses using the same old Header directive.  [Graham Leggett]

Changes with Apache 2.0.18

  *) Fix command-line processing so that if a bad argument is specified
     Apache will exit.  [Jeff Trawick]

  *) Change the make targets and rules to be consistent in all of the
     Apache-owned source trees.  [Roy Fielding]
     
  *) Fix processing of the TRACE method.  Previously we passed bogus
     parms to form_header_field() and it overlaid some vhost structures,
     resulting in a segfault in check_hostalias(). 
     [Greg Ames, Jeff Trawick]

  *) Win32: Add support for reliable piped logs. If the logging process
     goes down, Apache will automatically restart it. This function has 
     been part of Apache on Unix/Linux/BSD since the early v1.3 releases.
     [Bill Stoddard]

  *) Do not start piped log processes during the config file 
     preflight.  This change also circumvents a problem on 
     Windows where the rotatelog processes created during preflight
     was not getting cleaned up properly.
     [Bill Stoddard]

  *) add "Request Phase Participation" info to mod_info
     [Doug MacEachern]

  *) Make first phase changes to the scoreboard data structures in
     preparation for the rewriting of the scoreboard per my posted
     design notes. [Paul J. Reder]

  *) Fix httpd's definition of LTFLAGS to be consistent with that of apr
     and apr-util, allow it to be overridden by the configure command-line
     (default="--silent") and introduce LT_LDFLAGS to replace what we were
     formerly abusing as LTFLAGS.  [Roy Fielding]

  *) Clean up the reporting of incorrect closing container tags.
     [Barrie Slaymaker <barries@slaysys.com>]

  *) Simplify the configure process by moving all libtool stuff to APR
     and moving hints.m4 inline.  [Roy Fielding]

  *) Add the AP_DECLARE()/AP_CORE_DECLARE macros on the return types
     of functions used by mod_proxy for export in the DLL 
     [Ian Holsman <IanH@cnet.com>]

  *) Prevent a hang when a cgi handled by mod_cgid tries to read a
     request body from its stdin but no reqest body is being written to 
     the cgi.  [Jeff Trawick]

  *) mod_log_config: %c connection status incorrectly logged
     as "-" (non-keepalive) when MaxKeepAliveRequests is set to 0.
     [Bill Stoddard]

  *) Get mod_cern_meta working under Windows
     [Bill Stoddard]

  *) Create Files, and thus MMAPs, out of the request pool, not the
     connection pool.  This solves a small resource leak that had us
     not closing files until a connection was closed.  In order to do
     this, at the end of the core_output_filter, we loop through the
     brigade and convert any data we have into a single HEAP bucket
     that we know will survive clearing the request_rec.
     [Ryan Bloom, Justin Erenkrantz <jerenkrantz@ebuilt.com>,
      Cliff Woolley]

  *) Completely revamp configure so that it preserves the standard make
     variables CPPFLAGS, CFLAGS, CXXFLAGS, LDFLAGS and LIBS by moving
     the configure additions to EXTRA_* variables.  Also, allow the user
     to specify NOTEST_* values for all of the above, which eliminates the
     need for THREAD_CPPFLAGS, THREAD_CFLAGS, and OPTIM.  Fix the setting
     of INCLUDES and EXTRA_INCLUDES.  Check flags as they are added to
     avoid pointless duplications.  Fix the order in which flags are given
     on the compile and link lines.  Remove obsolete macros APR_DOEXTRA,
     AC_ADD_LIBRARY, AC_CHECK_DEFINE, APACHE_PASSTHRU, and APACHE_ONCE.
     Added APR_SAVE_THE_ENVIRONMENT and APR_RESTORE_THE_ENVIRONMENT macros.
     Renamed AC_TYPE_RLIM_T macro to APACHE_TYPE_RLIM_T.  [Roy Fielding]

  *) Get mod_tls to compile/work better on Windows.  PR #7612
     [Bernhard Schrenk <b.schrenk@improx.com>]

  *) Fix shutdown/restart hangs in the threaded MPM.
     [Jeff Trawick, Greg Ames, Ryan Bloom]
  
  *) Removed the keptalive boolean from conn_rec because it is now only
     used by a single routine and can be replaced by a local variable.
     [Greg Stein, Ryan Bloom, Roy Fielding]

  *) Patch prefork to put enough of the signal processing back in so that
     signals are all handled properly now. The previous patch fixed the
     deadlock race condition, but broke the user directed signal handling.
     This fixes it to work the way it did before my previous prefork patch
     (primarily, SIGTERM is now working).
 
  *) Change how input filters decide how much data is returned to the
     higher filter.  We used to use a field in the conn_rec, with this
     change, we use an argument to ap_get_brigade to determine how much
     data is retrieved. [Ryan Bloom]

  *) Fix seg fault at start-up introduced by Ryan's change to enable
     modules to specify their own logging tags. mod_log_config
     registers an optional function, ap_register_log_handler().
     ap_register_log_handler() was being called by http_core before
     the directive hash table was created. This patch creates the
     directive hash table before ap_register_log_handler() is
     registered as an optional function.
     [jean-frederic clere <jfrederic.clere@fujitsu-siemens.com>]

  *) Add ap_set_int_slot() function
     [John K. Sterling <sterling@covalent.net>]

  *) Under certain circumstances, Apache did not supply the
     right response headers when requiring authentication.
     [Gertjan van Wingerde <Gertjan.van.Wingerde@cmg.nl>] PR#7114
     (This is a port of the change that went into Apache 1.3.19.)

  *) Allow modules to specify their own logging tags.  This basically
     allows a module to tell mod_log_config that when %x is encountered
     a specific function should be called.  Currently, x can be any single
     character.  It may be more useful to make this a string at some point.
     [Ryan Bloom]

Changes with Apache 2.0.17

  *) If a higher-level filter handles the the byterange aspects of a
     request, then the byterange filter should not try to redo the
     work.  The most common case of this happening, is a byterange
     request going through the proxy, and the origin server handles
     the byterange request.  The proxy should ignore it.
     [Graham Leggett <minfrin@sharp.fm>]

  *) Changed the threaded mpm to have child_main join to each of the
     worker threads to make sure the kids are all gone before child_main
     exits after a signal (cleanup from perform_idle_server_maintenance).
     This is an extension of Ryans recent commit to make the child_main
     the signal thread.

  *) Add more options to the ap_mpm_query function.  This also allows MPMs to
     report if their threads are dynamic or static.  Finally, this also
     implements a new API, ap_show_mpm, which returns the MPM that was
     required into the core. [Harrie Hazewinkel <harrie@covalent.net>]

  *) Do not install the binaries from the support directory twice.
     [jun-ichiro hagino <itojun@iijlab.net>]

  *) The ap_f* functions should flush data to the filter that is passed
     in, not the the filter after the one passed in.
     [Ryan Morgan <rmorgan@covalent.net>]

  *) Make ab work again by changing its native types to apr types and formats.
     [Justin Erenkrantz <jerenkrantz@ebuilt.com>]

  *) Move the byterange filter and all of the supporting functions back
     to the HTTP module.  The byterange filter turned out to be very
     HTTP specific, and it belongs in the HTTP module.  [Greg Stein]

  *) Make clean, distclean, and extraclean consistently according to the
     Gnu makefile guidelines.  [Justin Erenkrantz <jerenkrantz@ebuilt.com>]

  *) Fix errors in the renaming of the apr_threadattr_detach_xxx functions.
     This may have been causing problems stopping processes in the threaded
     mpm's. [Greg Ames]

  *) Fix content-length in mod_negotiation to a long int representation.
     [William Rowe]

  *) Remove BindAddress from the default config file.
     [giles@nemeton.com.au]

  *) Allow module authors to add a module to their Apache build using
     --with-module, without re-running buildconf.  The syntax is:
	--with-module=module_type:/path/to/module.c
     The configure script will copy the module.c file to 
     modules/module_type, and it will be added to the relevant Makefiles.
     currently, this only works for static modules.  [Ryan Bloom]

  *) Changes required to make prefork clean up idle children properly.
     There was a window during which a starting worker deadlocks when
     an idle cleanup arrives before it completes init. Apache then keeps
     trying to cleanup the same deadlocked worker forever (until higher
     pids come along, but it still will never reduce below the deadlocked
     pid). Thus the number of children would not reduce to the correct
     idle level. [Paul J. Reder]

Changes with Apache 2.0.16

  *) Change the default installation directory to /usr/local/apache2,
     as now defined by the "Apache" layout in config.layout. [Marc Slemko]

  *) OS/2: Added support for building loadable modules as OS/2 DLLs. 
     [Brian Havard]

  *) Get MaxRequestsPerChild working with the Windows MPM.
     [Bill Stoddard]

  *) Make generic hooks to work, with mod_generic_hook_import/export
     experimental modules.  [Ben Laurie, Will Rowe]

  *) Fix segfaults for configuration file syntax errors such as
     "<Directory>" followed by "</Directory" and
     "<Directory>" followed by "</Directoryz>".  [Jeff Trawick]

  *) Cleanup the --enable-layout option of configure.  This makes
     us use a consistent location for the config.layout file, and it
     makes configure more portable.
     [jun-ichiro hagino <itojun@iijlab.net>]

  *) Changes to 'ab'; fixed int overrun's, added statistics, output in
     csv/gnuplot format, rudimentary ssl support and various other tweaks
     to make results more true to what is measured. The upshot of this it
     turns out that 'ab' has often underreported the true performance of
     apache. Often by a order of magnitude :-) See talk/paper of Sander 
     Temme at April ApacheCon 2001 for details.
     [Dirk-Willem van Gulik]

  *) Clean up mod_cgid's temporary request pool.  Besides fixing a
     storage leak this ensures that some unnecessary pipes are closed.
     [Jeff Trawick]

  *) Performance: Add quick_handler hook. This hook is called at the
     very beginning of the request processing before location_walk,
     translate_name, etc.  This hook is useful for URI keyed content
     caches like Mike Abbott's Quick Shortcut Cache.
     [Bill Stoddard]

  *) top_module global variable renamed to ap_top_module [Perl]

  *) Move ap_set_last_modified to the core.  This is a potentially 
     controversial change, because this is kind of HTTP specific.  However
     many protocols should be able to take advantage of this kind of
     information.  I expect that headers will need one more layer of
     indirection for multi-protocol work, but this is a small step in
     the right direction.  [Ryan Bloom]

  *) Enable mod_status by default.  This matches what Apache 1.3 does.
     [Ed Korthof]

  *) Add a ScriptSock directive to the default config file.  This is
     only enabled when mod_cgid is used.  
     [Taketo Kabe <kabe@sra-tohoku.co.jp>]

Changes with Apache 2.0.15

  *) Untangled the buildconf script and eliminated the need for build's
     aclocal.m4, generated_lists, build.mk, build2.mk, and a host of other
     libtool muck that is now under srclib/apr/build.  [Roy Fielding]

  *) Win32: Don't accept more connections than we have worker threads
     to handle.
     [Bill Stoddard]

  *) Fix bug in the Unix threaded.c MPM that allowed child processes
     to fork() new child processes. 
     [Bill Stoddard]

  *) SECURITY: Fix a major security problem with double-reverse lookup 
     checking.  Previously, a client connecting over IPv4 would not be 
     matched properly when the server had an IPv6 listening socket.  
     PR #7407   [Taketo Kabe <kiabe@sra-tohoku.co.jp>]

  *) Change the way the beos MPM handles polling to allow it to stop and
     restart.  Problem was the sockets being polled were being reset by
     the select call, so once it had accepted a connection it was no
     longer listening on the UDP socket we use for shutdown instructions.
     APR needs to be altered, patch on it's way. [David Reid]

  *) Empty out the brigade shared by ap_getline()/ap_get_client_block()
     on error exit from ap_getline().  Some other code got upset because
     the wrong data was in the brigade.  [Greg Ames, Jeff Trawick]

  *) Handle ap_discard_request_body() being called more than once.
     [Greg Ames, Jeff Trawick]

  *) Get rid of an inadvertent close of file descriptor 2 in
     mod_mime_magic.  [Greg Ames, Jeff Trawick]

  *) Add a hook, create_request.  This hook allows modules to modify
     a request while it is being created.  This hook is called for all
     request_rec's, main request, sub request, and internal redirect.
     When this hook is called, the the r->main, r->prev, r->next
     pointers have been set, so modules can determine what kind of
     request this is.  [Ryan Bloom]

  *) Cleanup the build process a bit more.  The Apache configure
     script no longer creates its own helper scripts, it just
     uses APR's.  
     [jean-frederic clere <jfrederic.clere@fujitsu-siemens.com>]

  *) Stop the forced downgrade of the connection to HTTP/1.0 for
     proxy requests.  [Graham Leggett]

  *) Avoid using sscanf to determine the HTTP protocol number in
     the common case because sscanf is a performance hog. From
     Mike Abbot's Accelerating Apache patch number 6.
     [Mike Abbot <mja@trudge.engr.sgi.com>, Bill Stoddard]

  *) SECURITY: Fix a security exposure in mod_access.  Previously when 
     IPv6 listening sockets were used, allow/deny-from-IPv4-address rules 
     were not evaluated properly (PR #7407).  Also, add the ability to 
     specify IPv6 address strings with optional prefix length on Allow 
     and Deny.  [Jeff Trawick]

  *) Enhance rotatelogs so that a UTC offset can be specified, and
     the logfile name can be formatted using strftime(3).  (Brought
     forward from 1.3.)  [Ken Coar]

  *) Reimplement the Windows MPM (mpm_winnt.c) to eliminate calling 
     DuplicateHandle on an IOCompletionPort (a practice which
     MS "discourages"). The new model does not rely on associating
     the completion port with the listening sockets, thus the
     completion port can be completely managed within the child 
     process.  A dedicated thread accepts connections off the network,
     then calls PostQueuedCompletionStatus() to wake up worker
     threads blocked on the completion port.
     [Bill Stoddard]

  *) Bring forward the --suexec-umask option which allows the
     builder to preset the umask for suexec processes.  [Ken Coar]

  *) Add a -V flag to suexec, which causes it to display the
     compile-time settings with which it was built.  (Only
     usable by root or the AP_HTTPD_USER username.)  [Ken Coar]

  *) Mod_include should always unset the content-length if the file is
     going to be passed through send_parsed_content.  There is no to
     determine if the content will change before actually scanning the
     entire content.  It is far safer to just remove the C-L as long
     as we are scanning it.  [Ryan Bloom]

  *) Make sure Apache sends WWW-Authenticate during a reverse proxy
     request and not Proxy-Authenticate.
     [Graham Leggett <minfrin@sharp.fm>]

Changes with Apache 2.0.14

  *) Fix content-length computation.  We ONLY compute a content-length if
     We are not in a 1.1 request and we cannot chunk, and this is a keepalive
     or we already have all the data.  [Ryan Bloom]

  *) Report unbounded containers in the config file.  Previously, a typo
     in the </container> directive could result in the rest of the config
     file being silently ignored, with undesired defaults used.
     [Jeff Trawick]

  *) Make the old_write filter use the ap_f* functions for the buffering.
     [Ryan Bloom]

  *) Move more code from the http module into the core server.  This
     is core code, basically the default handler, the default input
     and output filters, and all of the core configuration directives.
     All of this code is required in order for the server to work, with or
     without HTTP.  The server is closer to working without the HTTP
     module, although there is still more to do.  [Ryan Bloom]

  *) Fix a number of SGI compile warnings throughout the server.  Fix some
     bad parameters to apr_bucket_read().  Fix a bad statement in 
     ap_method_in_list().  For the mod_rewrite cache use apr_time_t 
     consistently; we were mixing apr_time_t and time_t in invalid ways 
     before.  In load_file(), call apr_dso_error() instead of 
     apr_strerror() so that we get a more specific string on some platforms.
     PR #6980  [Jeff Trawick]

  *) Allow modules to query the MPM about it's execution profile.  This
     query API can and should be extended in the future, but for now,
     max_daemons, and threading or forking is a very good start.
     [Jon Travis <jtravis@covalent.net>]

  *) Modify mod_include to send blocks of data no larger than 9k.
     Without this, mod_include will wait until the whole file is parsed,
     or the first tag is found to send any data to the client.
     [Paul J. Reder <rederpj@raleigh.ibm.com>]

  *) Fix mod_info, so that <Directory> and <Location> directives are
     not displayed twice when displaying the current configuration.
     [Ryan Morgan <rmorgan@covalent.net>]

  *) Add config directives to override DEFAULT_ERROR_MSG and
     DEFAULT_TIME_FORMAT.  This was sent in as PR 6193.
     [Dan Rench <drench@xnet.com>]

  *) Get mod_info building and loading on Win32.  [William Rowe]

  *) Begin to move protocol independant functions out of mod_http.  The goal
     is to have only functions that are HTTP specific in the http directory.
     [Ryan Bloom]

Changes with Apache 2.0.13

  *) Don't assume that there will always be multiple calls to the byterange 
     filter.  It is possible that we will need to do byteranges with only
     one call to the filter.  [Ryan Morgan <rmorgan@covalent.net>]

  *) Move the error_bucket definition from the http module to the
     core server.  Every protocol will need this ability, not just
     HTTP.  [Ryan Bloom]

Changes with Apache 2.0.12

  *) Modify mod_file_cache to save pre-formatted strings for 
     content-length and last-modified headers for performance. 
     [Mike Abbot <mja@trudge.engr.sgi.com>]

  *) Namespace protect IOBUFSIZ since it is exposed in the API.
     [Jon Travis <jtravis@covalent.net>]

  *) Use "Basic" authentication instead of "basic" in ab, as the spec
     says we should.  [Andre Breiler <andre.breiler@rd.bbc.co.uk>]

  *) Fix a seg fault in mod_userdir.c.  We used to use the pw structure
     without ever filling it out.  This fixes PR 7271.
     [Taketo Kabe <kabe@sra-tohoku.co.jp> and 
      Cliff Woolley <cliffwoolley@yahoo.com>]

  *) Add a couple of GCC attribute tags to printf style functions.
     [Jon Travis <jtravis@covalent.net>]

  *) Add the correct language tag for interoperation with the Taiwanese
     versions of MSIE and Netscape. [Clive Lin <clive@CirX.ORG>] PR#7142

  *) Migrate the perchild MPM to use the new apr signal child, and 
     APR thread functions.  [Ryan Bloom]

  *) Close one copy of the CGI's stdout before creating the new process.
     The CGI will still have stdout, because we have already dup'ed it.
     This keeps Apache from waiting forever to send the results of a CGI
     process that has forked a long-lived child process.
     [Taketo Kabe <kabe@sra-tohoku.co.jp>]

  *) Remove the rest of the pthreads functions from the threaded MPM.
     This requires the APR support for a signal thread that was just
     added.  [Ryan Bloom]

  *) Make mod_dir use a fixup for sending a redirect to the browser.
     Before this, we were using a handler, which doesn't make much
     sense, because the handler wasn't generating any data, it would
     either return a redirect error code, or DECLINED.  This fits the
     current hooks better.  [Ryan Morgan <rmorgan@covalent.net>]

  *) Make the threaded MPM use APR threads instead of pthreads.
     [Ryan Bloom]

  *) Get mod_tls to the point where it actually appears to work in all cases.
     [Ben Laurie]

  *) implement --enable-modules and --enable-mods-shared for "all" and
     "most".  [Greg Stein]

  *) Move the threaded MPM to use APR locks instead of pthread locks.
     [Ryan Bloom]

  *) Rename mpmt_pthread to threaded.  This is more in line with the
     fact that mpmt_pthread shouldn't be using pthreads directly, and
     it is a smaller name that doesn't tie into anything.
     [Ryan Bloom]

  *) Rename the module structures so that the exported symbol matches
     the file name, and it is easier to automate the installation
     process (generating LoadModule directives from the module filenames).
     [Martin Kraemer]

  *) Remove the coalesce filter.  With the ap_f* functions, this filter
     is no longer needed. [Ryan Bloom]

Changes with Apache 2.0.11

  *) Remove the dexter MPM.  Perchild is the same basic idea, but it has the
     added feature of allowing a uid/gid per child process.  If no
     uid/gid is specified, then Perchild behaves exactly like dexter.
     [Ryan Bloom]

  *) Get perchild building again. [Ryan Bloom]

  *) Don't disable threads just because we are using the prefork MPM.
     If somebody wants to compile without threads, they must now add
     --disable-threads to the configure command line.  [Ryan Bloom]

  *) Begin to move the calls to update_child_status into common code, so
     that each individual MPM does not need to update the scoreboard itself.
     [Ryan Bloom]

  *) Allow mod_tls to compile under Unix boxes where openssl has been
     installed to the system include files.
     [Gomez Henri <new-httpd@slib.fr>]

  *) Cleanup the mod_tls configure process.  This should remove any need
     to hand-edit any files.  We require OpenSSL 0.9.6 or later, but 
     configure doesn't check that yet.  [Ryan Bloom]

  *) Add a very early prototype of SSL support (in mod_tls.c). It is
     vital that you read modules/tls/README before attempting to build
     it. [Ben Laurie]

  *) Fix a potential seg fault on all platforms.  David Reid fixed this
     on BEOS, but the problem could happen anywhere, so we don't want
     to #ifdef it. [Cliff Woolley <cliffwoolley@yahoo.com>]
 
  *) Add new LogFormat directive, %D, to log time it takes to serve a
     request in microseconds. [Bill Stoddard]

  *) Change AddInputFilter and AddOutputFilter to SetInputFilter and
     SetOutputFilter.  This corresponds nicely with the other Set 
     directives, which operate on containers while the Add* directives
     tend to work directly on extensions.  [Ryan Bloom]

  *) Cleanup the header handling a bit.  This uses the apr_brigade_*
     functions for the buffering so that we don't need to compute
     the length of the headers before we actually create the header
     buffer.  [Ryan Bloom]

  *) Allow filters to buffer data using the ap_f* functions.  These have
     become macros that resolve directly to apr_brigade_*.  
     [Ryan Bloom]

  *) Get the Unix MPM's to do a graceful restart again.  If we are going
     to register a cleanup with ap_cleanup_scoreboard, then we have to
     kill the cleanup with the same function,  and that function can't be
     static.  [Ryan Bloom]

  *) Install all required header files.  Without these, it was not
     possible to compile some modules outside of the server.
     [Ryan Bloom]

  *) Fix the AliasMatch directive in Apache 2.0.  When we brought a patch
     forward from 1.3 to 2.0, we missed a single line, which broke regex
     aliases.  [Ryan Bloom]

  *) We have a poor abstraction in the protocol.  This is a temporary
     hack to fix the bug, but it will need to be fixed for real.  If
     we find an error while sending out a custom error response, we back
     up to the first non-OK request and send the data.  Then, when we send
     the EOS from finalize_request_protocol, we go to the last request,
     to ensure that we aren't sending an EOS to a request that has already
     received one.  Because the data is sent on a different request than
     the EOS, the error text never gets sent down the filter stack.  This
     fixes the problem by finding the last request, and sending the data
     with that request.  [Ryan Bloom]

  *) Make the server status page show the correct restart time, and
     thus the proper uptime. [Ryan Bloom]

  *) Move the CGI creation logic from mod_include to mod_cgi(d).  This
     should reduce the amount of duplicate code that is required to
     create CGI processes.
     [Paul J. Reder <rederpj@raleigh.ibm.com>]

  *) ap_new_connection() closes the socket and returns NULL if a socket
     call fails.  Usually this is due to a connection which has been 
     reset.  [Jeff Trawick]

  *) Move the Apache version information out of httpd.h and into release.h.
     This is in preparation for the first tag with the new tag and release
     system.  [Ryan Bloom]

  *) Begin restructuring scoreboard code to enable adding back in
     the ability to use IPC other than shared memory.
     Get mod_status working on Windows again. [Bill Stoddard]

  *) Make mod_status work with 2.0.  This will work for prefork,
     mpmt_pthread, and dexter.  [Ryan Bloom]

  *) Correct a typo in httpd.conf.
     [Kunihiro Tanaka <tanaka@apache.or.jp>] PR#7154 

  *) Really fix mod_rewrite map lookups this time. [Tony Finch]

  *) Get the correct IP address if ServerName isn't set and we can't
     find a fully-qualified domain name at startup.
     PR#7170 [Danek Duvall <dduvall@eng.sun.com>]

  *) Make mod_cgid work with SuExec.  [Ryan Bloom]

  *) Adopt apr user/group name features for mod_rewrite.  Eliminates some
     'extra' stat's for user/group since they should never occur, and now
     resolves the SCRIPT_USER and SCRIPT_GROUP, including on WinNT NTFS
     volumes.  [William Rowe]

  *) Adopt apr features to simplify mod_includes.  This changes the
     behavior of the USER_NAME variable, unknown uid's are now reported
     as USER_NAME="<unknown>" rather than the old user#000 result.
     WinNT now resolves USER_NAME on NTFS volumes.  [William Rowe]

  *) Adopt apr features for simplifing mod_userdir, and accept the new
     Win32/OS2 exceptions without hiccuping.  [William Rowe]

  *) Replace configure --with-optim option by using and saving the
     environment variable OPTIM instead.  This is needed because configure
     options do not support multiple flags separated by spaces.
     [Roy Fielding]

  *) Fix some byterange handling.  If we get a byte range that looks like
     "-999999" where that is past the end of the file, we should return 
     a PARTIAL CONTENT status code, and return the whole file as one big
     byterange.  This matches the 1.3 handling now.  [Ryan Bloom]

  *) Make the error bucket a real meta-data bucket.  This means that the
     bucket length is 0, and a read returns NULL data.  If one of these
     buckets is passed down after the headers are sent, this data will
     just be ignored.  [Greg Stein]

  *) The prefork MPM wasn't killing child processes correctly if a restart
     signal was received while the process was serving a request.  The child
     process would become the equivalent of a second parent process.  If
     we break out of the accept loop, then we need to do die after cleaning
     up after ourselves.  [Ryan Bloom]

  *) Change the Prefork MPM to use SIGWINCH instead of SIGUSR1 for graceful
     restarts.  [Ryan Bloom]

  *) Modify the apr_stat/lstat/getfileinfo calls within apache to use
     the most optimal APR_FINFO_wanted bits.  This spares Win32 from
     performing very expensive owner, group and permission lookups
     and allows the server to function until these apr_finfo_t fields
     are implemented under Win32.  [William Rowe]

  *) Support for typedsafe optional functions - that is functions exported by
     optional modules, which, therefore, may or may not be present, depending
     on configuration. See the experimental modules mod_optional_fn_{ex,im}port
     for sample code. [Ben Laurie]

  *) filters can now report an HTTP error to the server.  This is done
     by sending a brigade where the first bucket is an error_bucket.
     This bucket is a simple bucket that stores an HTTP error and
     a string.  Currently the string is not used, but it may be needed
     to output an error log.  The http_header_filter will find this
     bucket, and output the error text, and then return 
     AP_FILTER_ERROR, which informs the server that the error web page
     has already been sent.  [Ryan Bloom]

  *) If we get an error, then we should remove all filters except for
     those critical to serving a web page.  This fixes a bug, where
     error pages were going through the byterange filter, even though
     that made no sense.  [Ryan Bloom]

  *) Relax the syntax checking of Host: headers in order to support
     iDNS. PR#6635 [Tony Finch]

  *) Cleanup the byterange filter to use the apr_brigade_partition
     and apr_bucket_copy functions.  This removes a lot of very messy
     code, and hopefully makes this filter more stable.
     [Ryan Bloom]

  *) Remove AddModule and ClearModuleList directives.  Both of these
     directives were used to ensure that modules could be enabled
     in the correct order.  That requirement is now gone, because
     we use hooks to ensure that modules are in the correct order.
     [Ryan Bloom]

  *) When SuExec is specified, we need to add it to the list of
     targets to be built.  If we don't, then any changes to the
     configuration won't affect SuExec, unless 'make suexec' is
     specifically run.  [Ryan Bloom]

  *) Cleaned out open_file from mod_file_cache, as apr now accepts
     the APR_XTHREAD argument to open a file for consumption by
     parallel threads on win32.  [William Rowe]

  *) Correct a bug in determining when we follow symlinks.  The code
     expected a stat -1 result, not an apr_status_t positive error.
     Also check if the APR_FINFO_USER fields are valid before we
     follow the link.  [William Rowe]

  *) Move initgroupgs, ap_uname2id and ap_gname2id from util.c to
     mpm_common.c.  These functions are only valid on some platforms,
     so they should not be in the main-line code. [Ryan Bloom]

  *) Remove ap_chdir_file().  This function is not thread-safe,
     and nobody is currently using it.  [Ryan Bloom]

  *) Do not try to run make depend if there are no .c files in the
     current directory, doing so makes `make depend` fail.
     [Ryan Bloom]

   *) Update highperformance.conf to work with either prefork or
      pthreads mpms.  [Greg Ames] 

  *) Stop checking to see if this is a pipelined request if we know
     for a fact that it isn't.  Basically, if r->connection->keepalive == 0.
     This keeps us from making an extra read call when serving a 1.0
     request.  [Ryan Bloom and Greg Stein]

  *) Fix the handling of variable expansion look-ahead in mod_rewrite,
     i.e. syntax like %{LA-U:REMOTE_USER}, and also fix the parsing of
     more complicated nested RewriteMap lookups. PR#7087 [Tony Finch]

  *) Fix the RFC number mentioned when complaining about a missing
     Host: header. PR#7079 [Alexey Toptygin <alexeyt@wam.umd.edu>]

  *) Fix an endless loop in ab which occurred when ab was posting
     and the server dropped the connection unexpectedly.
     [Jeff Trawick]

  *) Fix a segfault while handling request bodies in ap_http_filter().  
     This problem has been seen with mod_dav usage as well as with 
     requests where the body was just being discarded.  [Jeff Trawick]

  *) Some adjustment on the handling and automatic setting (via
     hints.m4) of various compilation flags (eg: CFLAGS). Also,
     add the capability to specify flags (NOTEST_CFLAGS and
     NOTEST_LDFLAGS) which are used to compile Apache, but
     not used during the configuration process. Useful for
     flags like "-Werror". [Jim Jagielski]

  *) Stop using environment variables to force debug mode or
     no detach.  We now use the -D command line argument to 
     specify the correct mode.  -DONE_PROCESS and -DNO_DETACH.
     [Greg Stein, Ryan Bloom]

  *) Change handlers to use hooks. [Ben Laurie]

  *) Stop returning copies of filenames from both apr_file_t and
     apr_dir_t.  We pstrdup the filenames that we store in the
     actual structures, so we don't need to pstrdup the strings again.
     [Ryan Bloom]

  *) mod_cgi: Fix some problems where the wrong error value was being
     traced.  [Jeff Trawick]

  *) EBCDIC: Fix some missing ASCII conversion on some protocol data.
     [Jeff Trawick]

  *) Add generic hooks. [Ben Laurie]

  *) Use a real pool to dup the error log descriptor.  [Ryan Bloom]

  *) Fix a segfault caused by mod_ext_filter when the external filter 
     program does not exist. [Jeff Trawick]

  *) Fix an output truncation error when on an HTTP >= 1.0 request an
     object of size between DEFAULT_BUCKET_SIZE and AP_MIN_BYTES_TO_WRITE 
     was served through mod_charset_lite (or anything else that would
     create a transient bucket in this size range).  ap_bucket_make_heap()
     silently failed (fixed), transient_setaside() discovered it, but
     ap_save_brigade() ignored it (fixed). [Jeff Trawick]
     
  *) Ignore \r\n or \n when using PEEK mode for input filters.  The problem
     is that some browsers send extra lines at the end of POST requests, and
     we don't want to delay sending data back to the user just because the
     browser isn't well behaved. [Ryan Bloom]

  *) Get SuEXEC working again.  We can't send absolute paths to suExec
     because it refuses to execute those programs.  SuEXEC also wasn't
     always recognizing configuration changes made using the autoconf
     setup.  [Ryan Bloom]

  *) Allow the buildconf process to find the config.m4 files in the correct
     order.  Basically, we can now name config.m4 files as config\d\d.m4,
     and we will sort them correctly when inserting them into the build
     process.  [Ryan Bloom]

  *) Get mod_cgid to use apr calls for creating the actual CGI process.
     This also allows mod_cgid to use ap_os_create_priviledged_process,
     thus allowing for SuExec execution from mod_cgid.  Currently, we do
     not support everything that standard SuExec supports, but at least
     it works minimally now. [Ryan Bloom]

  *) Allow SuExec to be configured from the ./configure command line.
     [Ryan Bloom]

  *) Update some of the docs in README and INSTALL to reflect some of
     the changes in Apache 2.0 [Cliff Woolley <cliffwoolley@yahoo.com>]

  *) If we get EAGAIN returned from the call to apr_sendfile, then we
     need to call sendfile again.  This gets us serving large files
     such as apache_2.0a9.tar.gz on FreeBSD again. [Ryan Bloom]

  *) Get the support programs building cleanly again.
     [Cliff Woolley <cliffwoolley@yahoo.com>]

  *) The Apache/Win32 Apache.exe and dll's now live in bin.  The 
     current directory logic now backs up over bin/ to determine the
     server root from the Apache.exe path.

  *) Apache/Win32 now follows the standard conventions of mod_foo.so
     loadable modules, dynamic libs are all named libfoo.dll, and the
     makefile.win populates the include, lib and libexec directories.

  *) Apache is now IPv6-capable.  On systems where APR supports IPv6,
     Apache gets IPv6 listening sockets by default.  Additionally, the
     Listen, NameVirtualHost, and <VirtualHost> directives support IPv6
     numeric address strings (e.g., "Listen [fe80::1]:8080").
     [Jeff Trawick]

  *) Modify the install directory layout.  Modules are now installed in
     modules/.  Shared libraries should be installed in libraries/, but
     we don't have any of those on Unix yet.  All install directories
     are modifyable at configure time. [Ryan Bloom]

  *) Install all header files in the same directory on Unix. [Ryan Bloom]

  *) Get the functions in server/linked into the server, regardless of
     which modules linked into the server.  This uses the same hack 
     for Apache that we use for APR and apr-util to ensure all of the
     necessary functions are linked.  As a part of thise, the CHARSET_EBCDIC
     was renamed to AP_CHARSET_EBCDIC for namespace protection, and to make
     the scripts a bit easier.
     [Ryan Bloom]

  *) Rework the RFC1413 handling to make it thread-safe, use a timeout
     on the query, and remove IPv4 dependencies.  [Jeff Trawick]

  *) Get all of the auth modules to the point that they will install and
     be loadable into the server.  Our new build/install mechanism expects
     that all modules will have a common name format.  The auth modules 
     didn't use that format, so we didn't install them properly.
     [Ryan Bloom]

  *) API routines ap_pgethostbyname() and ap_pduphostent() are no longer
     available.  Use apr_getaddrinfo() instead.  [Jeff Trawick]

  *) Get "NameVirtualHost *" working in 2.0.  [Ryan Bloom]

  *) Return HTTP_RANGE_NOT_SATISFIABLE if the every range requested starts
     after the end of the response. [Ryan Bloom]

  *) Get byterange requests working with responses that do not have a
     content-length.  Because of the way byterange requests work, we have to
     have all of the data before we can actually do the byterange, so we
     can compute the content-length in the byterange filter.
     [Ryan Bloom]

  *) Get exe CGI's working again on Windows.
     [Allan Edwards]

  *) Get mod_cgid and mod_rewrite to work as DSOs by changing the way
     they keep track of whether or not their  post config hook has been
     called before.  Instead of a static variable (which is replaced when 
     the DSO is loaded a second time), use userdata in the process pool.
     [Jeff Trawick]

Changes with Apache 2.0a9

  *) Win32 now requires perl to complete the final install step for users
     to build + install on Win32.  Makefile.win now rewrites @@ServerRoot@
     and installs the conf, htdocs and htdocs/manual directories.
     [William Rowe]

  *) Make mod_include use a hash table to associate directive tags with
     functions.  This allows modules to implement their own SSI tags easily.
     The idea is simple enough, a module can insert it's own tag and function
     combination into a hash table provided by mod_include.  While mod_include
     parses an SSI file, when it encounters a tag in the file, it does a
     hash lookup to find the function that implements that tag, and passes
     all of the relevant data to the function.  That function is then
     responsible for processing the tag and handing the remaining data back
     to mod_include for further processing.
     [Paul J. Reder <rederpj@raleigh.ibm.com>]

  *) Get rid of ap_new_apr_connection().  ap_new_connection() now has 
     fewer parameters: the local and remote socket addresses were removed
     from the parameter list because all required information is available
     via the APR socket.  [Jeff Trawick]

  *) Distribution directory structure reorganized to reflect a
     normal source distribution with external install targets.
     [Roy Fielding]

  *) The MPMs that need multiple segments of shared memory now create
     two apr_shmem_t variables, one for each shared memory allocation.
     the problem is that we can't determine how much memory will be required
     for shared memory allocations once we try to allocate more than one
     variable.  The MM code automatically aligns the shared memory allocations,
     so we end up needing to pad the amount of shared memory we want based
     on how many variables will be allocated out of the shared memory segment.
     It is just easier to create a second apr_shmem_t variable, and two
     shmem memory blocks.
     [Ryan Bloom]

  *) Cleanup the export list a bit.  This creates a single unified list of
     functions exported by APR.  The export list is generated at configure
     time, and that list is then used to generate the exports.c file.
     Because of the way the export list is generated, we only export those
     functions that are valid on the platform we are building on.
     [Ryan Bloom]

  *) Enable logging the cookie with mod_log_config
     [Sander van Zoest <sander@covalent.net>]

  *) Fix a segfault in mod_info when it reaches the end of the configuration.
     [Jeff Trawick]

  *) Added lib/aputil/ as a placeholder for utility functions which are not
     specific to the Apache HTTP Server (but do not make sense with APR).
     The first utility is "apu_dbm": a set of functions to work with DBM
     files. This first version can be compiled for SDBM or GDBM databases.
     [Greg Stein]

  *) Complete re-write of mod_include.  This makes mod_include a filter that
     uses buckets directly.  This has now served the FAQ correctly.
     [Paul Reder <rederpj@raleigh.ibm.com>]

  *) Allow modules to specify the first filter in a sub_request when
     making the sub_request.  This keeps modules from having to change the
     output_filter immediately after creating the sub-request, and therefore
     skip the sub_req_output_filter.  [Ryan Bloom]

  *) Update ab to accept URLs with IPv6 literal address strings (in the
     format described in RFC 2732), and to build Host header fields in
     the same format.  This allows IPv6 literal address strings to be
     used with ab.  This support has been tested against Apache 1.3 with 
     the KAME patch, but Apache 2.0 does not yet work with this format
     of the Host header field.  [Jeff Trawick]

  *) Accomodate an out-of-space condition in the piped logs and the
     rotatelogs.c code, and no longer churn log processes for this
     condition.  [Victor J. Orlikowski]

  *) Add support for partial writes with apr_sendfile() to core_output_filter.
     [Greg Ames] 

Changes with Apache 2.0a8

  *) Add a directive to mod_mime so that filters can be associated with
     a given mime-type.
     [Ryan Bloom]

  *) Get multi-views working again.  We were setting the path_info
     field incorrectly if we couldn't find the specified file.
     [Ryan Bloom]

  *) Fix 304 processing.  The core should never try to send the headers
     down the filter stack.  Always, just setup the table in the request
     record, and let the header filter convert it to data that is ready
     for the network.
     [Ryan Bloom]

  *) More fixes for the proxy.  There are still bugs in the proxy code,
     but this has now proxied www.yahoo.com and www.ntrnet.net (my ISP)
     successfully.
     [Ryan Bloom]

  *) Fix params for apr_getaddrinfo() call in connect proxy handler.
     [Chuck Murcko]

  *) APR: Add new apr_getopt_long function to handle long options.
     [B. W. Fitzpatrick <fitz@red-bean.com>]

  *) APR: Change apr_connect() to take apr_sockaddr_t instead of hostname.
     Add generic apr_create_socket().  Add apr_getaddrinfo() for doing
     hostname resolution/address string parsing and building
     apr_sockaddr_t.  Add apr_get_sockaddr() for getting the address
     of one of the apr_sockaddr_t structures for a socket.  Change
     apr_bind() to take apr_sockaddr_t.  [David Reid and Jeff Trawick]

  *) Remove the BUFF from the HTTP proxy.  This is still a bit ugly, but
     I have proxied pages with it, cleanup will commence soon.
     [Ryan Bloom]

  *) Make the proxy work with filters.  This isn't perfect, because we
     aren't dealing with the headers properly.  [Ryan Bloom]

  *) Do not send a content-length iff the C-L is 0 and this is a head
     request.  [Ryan Bloom]

  *) Make cgi-bin work as a regular directory when using mod_vhost_alias
     with no VirtualScriptAlias directives. PR#6829 [Tony Finch]

  *) Remove BUFF from the PROXY connect handling. [Ryan Bloom]

  *) Get the default_handler to stop trying to deal with HEAD requests.
     The idea is to let the content-length filter compute the C-L before
     we try to send the data.  If we can get the C-L correctly, then we
     should send it in the HEAD response.
     [Ryan Bloom]
     
  *) The Header filter can now determine if a body should be sent based
     on r->header_only.  The general idea of this is that if we delay
     deciding to send the body, then we might be able to compute the
     content-length correctly, which will help caching proxies to cache
     our data better.  Any handler that doesn't want to try to compute
     the content-length can just send an EOS bucket without data and
     everything will just work.
     [Ryan Bloom]

  *) Add the referer to the error log if one is available.
     [Markus Gyger <mgyger@itr.ch>]

  *) Mod_info.c has now been ported to Apache 2.0.  As a part of this
     change, the root of the configuration tree has been exposed to modules
     as ap_conftree.
     [Ryan Morgan <rmorgan@covalent.net>]

  *) Get the core_output_filter to use the bucket interface directly.
     This keeps us from calling the content-length filter multiple times
     for a simple static request.
     [Ryan Bloom]

  *) We are sending the content-type correctly now.
     [Ryan Bloom and Will Rowe]

  *) APR on FreeBSD: Fix a bug in apr_sendfile() which caused us to report
     a bogus bytes-sent value when the only thing being sent was trailers
     and writev() returned an error (or EAGAIN).  [Jeff Trawick]

  *) Get SINGLE_LISTEN_UNSERIALIZED_ACCEPT working again.  This uses the
     hints file to determine which platforms define 
     SINGLE_LISTEN_UNSERIALIZED_ACCEPT.
     [Ryan Bloom]

  *) APR: add apr_get_home_directory()  [Jeff Trawick]

  *) Initial import of 1.3-current mod_proxy. [Chuck Murcko]

  *) Not all platforms have INADDR_NONE defined by default.  Apache
     used to make this check and define INADDR_NONE if appropriate,
     but APR needs the check too, and I suspect other applications will
     as well.  APR now defines APR_INADDR_NONE, which is always a valid
     value on all platforms.
     [Branko Čibej <brane@xbc.nu>]

  *) Destroy the pthread mutex in lock_intra_cleanup() for PR#6824.
     [Shuichi Kitaguchi <ki@hh.iij4u.or.jp>] 

  *) Relax the syntax checking of Host: headers in order to support
     iDNS. PR#6635 [Tony Finch]

  *) When reading from file buckets we convert to an MMAP if it makes
     sense.  This also simplifies the default handler because the
     default handler no longer needs to try to create MMAPs.
     [Ryan Bloom]

  *) BUFF has been removed from the main server.  The BUFF code will remain
     in the code until it has been purged from the proxy module as well.
     [Ryan Bloom]

  *) Byteranges have been completely re-written to be a filter.  This
     has been tested, and I believe it is working correctly, but it could
     doesn't work for the Adobe Acrobat plug-in.  The output almost matches
     the output from 1.3, the only difference being that 1.3 includes
     a content-length in the response, and this does not.
     [Ryan Bloom]

  *) APR read/write functions and bucket read functions now operate
     on unsigned integers, instead of signed ones.  It doesn't make
     any sense to use signed ints, because we return the error codes,
     so if we have an error we should report 0 bytes read or written.
     [Ryan Bloom]

  *) Always compute the content length, whether it is sent or not.
     The reason for this, is that it allows us to correctly report
     the bytes_sent when logging the request.  This also simplifies
     content-length filter a bit, and fixes the actual byte-reporing
     code in mod_log_config.c
     [Ryan Bloom]

  *) Remove AP_END_OF_BRIGADE definition.  This does not signify what
     it says, because it was only used by EOS and FLUSH buckets.  Since
     neither of those are required at the end of a brigade, this was
     really signifying FLUSH_THE_DATA, but that can be determined better
     by checking AP_BUCKET_IS_EOS() or AP_BUCKET_IS_FLUSH.  EOS and FLUSH
     buckets now return a length of 0, which is actually the amount of data
     read, so they make more sense.
     [Ryan Bloom]

  *) Allow the core_output_filter to save some data past the end of a
     request.  If we get an EOS bucket, we only send the data if it 
     makes sense to send it.  This allows us to pipeline request
     responses.  As a part of this, we also need to allocate mmap
     buckets out of the connection pool, not the request pool.  This
     allows the mmap to outlive the request.
     [Ryan Bloom]

  *) Make blocking and non-blocking bucket reads work correctly for
     sockets and pipes.  These are the only bucket types that should
     have non-blocking reads, because the other bucket types should
     ALWAYS be able to return something immediately.
     [Ryan Bloom]

  *) In the Apache/Win32 console window, accept Ctrl+C to stop the 
     server, but use Ctrl+Break to initiate a graceful restart 
     instead of duplicating behavior. [John Sterling]

  *) Patch mod_autoindex to set the Last-Modified header based on
     the directory's mtime, and add the ETag header.  [William Rowe]

  *) Merge the 1.3 patch to add support for logging query string in 
     such a way that "%m %U%q %H" is the same as "%r".
     [Bill Stoddard]

  *) Port three log methods from mod_log_config 1.3 to 2.0: 
     CLF compliant '-' byte count, method and protocol.
     [Bill Stoddard]

  *) Add a new LogFormat directive, %c, that will log connection
     status at the end of the response as follows:
     'X' - connection aborted before the response completed.
     '+' - connection may be kept-alive by the server.
     '-' - connection will be closed by the server.
     [Bill Stoddard]

  *) Expand APR for WinNT to fully accept and return utf-8 encoded
     Unicode file names and paths for Win32, and tag the Content-Type 
     from mod_autoindex to reflect that charset if the the feature
     macro APR_HAS_UNICODE_FS is true.  [William Rowe]

  *) Compute the content length (and add appropriate header field) for
     the response when no content length is available and we can't use 
     chunked encoding.  [Jeff Trawick]

  *) Changed ap_discard_request_body() to use REQUEST_CHUNKED_DECHUNK,
     so that content input filters get dechunked data when using
     the default handler. Also removed REQUEST_CHUNKED_PASS.
     [Sascha Schumann]
     
  *) Add mod_ext_filter as an experimental module.  This module allows
     the administrator to use external programs as filters.  Currently,
     only filtering of output is supported.  [Jeff Trawick]

  *) Most Apache functions work on EBCDIC machines again, as protocol
     data is now translated (again).  [Jeff Trawick]

  *) Introduce ap_xlate_proto_{to|from}_ascii() to clean up some of
     the EBCDIC support.  They are noops on ASCII machines, so this
     type of translation doesn't have to be surrounded by #ifdef
     CHARSET_EBCDIC.  [Jeff Trawick]

  *) Fix mod_include.  tag commands work again, and the server will
     send the FAQ again.  This also allows mod_include to set aside
     buckets that include partial buckets.
     [Ryan Bloom and David Reid]

  *) Add suexec support back.  [Manoj Kasichainula]

  *) Lingering close now uses the socket directly instead of using
     BUFF.  This has been tested, but since all we can tell is that it
     doesn't fail, this needs to be really hacked on.
     [Ryan Bloom]

  *) Allow filters to modify headers and have those headers be sent to
     the client.  The idea is that we have an http_header filter that
     actually sends the headers to the network.  This removes the need
     for the BUFF to send headers.
     [Ryan Bloom]

  *) Charset translation: mod_charset_lite handles translation of
     request bodies.  Get rid of the xlate version of ap_md5_digest()
     since we don't compute digests of filtered (e.g., translated) 
     response bodies this way anymore.  (Note that we don't do it at
     all at the present; somebody needs to write a filter to do so.)
     [Jeff Trawick]

  *) Input filters and ap_get_brigade() now have a input mode parameter 
     (blocking, non-blocking, peek) instead of a length parameter.
     [hackathon]

  *) Update the mime.types file to the registered media types as
     of 2000-10-19. PR#6613 [Carsten Klapp <carsten.klapp@home.net>,
     Tony Finch]

  *) Namespace protect some macros declared in ap_config.h
     [Ryan Bloom]

  *) Support HTTP header line folding with input filtering.
     [Greg Ames]

  *) Mod_include works again.  This should still be re-written, but at
     least now we can serve an SHTML page again.
     [Ryan Bloom]

  *) Begin to remove BUFF from the core.  Currently, we keep a pointer
     to both the BUFF and the socket in the conn_rec.  Functions that
     want to use the BUFF can, functions that want to use the socket,
     can.  They point to the same place.
     [Ryan Bloom]

  *) apr_psprintf doesn't understand %lld as a format.  Make it %ld.
     [Tomas "Ögren" <stric@ing.umu.se>]

  *) APR pipes on Unix and Win32 are now cleaned up automatically when the 
     associated pool goes away.  (APR pipes on OS/2 were already had this
     logic.)  This resolvs a fatal file descriptor leak with CGIs.  
     [Jeff Trawick]

  *) The final line of the config file was not being read if there was
     no \n at the end of it.  This was caused by apr_fgets returning 
     APR_EOF even though we had read valid data.  This is solved by
     making cfg_getline check the buff that was returned from apr_fgets.
     If apr_fgets return APR_EOF, but there was data in the buf, then we
     return the buf, otherwise we return NULL.
     [Ryan Bloom]

  *) Piped logs work again in the 2.0 series.
     [Ryan Bloom]

  *) Restore functionality broken by the mod_rewrite security fix:
     rewrite map lookup keys and default values are now expanded
     so that the lookup can depend on the requested URI etc.
     PR #6671 [Tony Finch]

  *) SECURITY: Tighten up the syntax checking of Host: headers to fix a
     security bug in some mass virtual hosting configurations
     that can allow a remote attacker to retrieve some files
     on the system that should be inaccessible. [Tony Finch]

  *) Add a pool bucket type.  This bucket is used for data allocated out
     of a pool.  If the pool is cleaned before the bucket is destroyed, then
     the data is converted to a heap bucket, allowing it to survive the
     death of the pool.
     [Ryan Bloom]

  *) Add a flush bucket.  This allows modules to signal that the filters
     should all flush whatever data they currently have.  There is no way
     to actually force them to do this, so if a filter ignores this bucket,
     that's life, but at least we can try with this.
     [Ryan Bloom]

  *) Add an output filter for sub-requests.  This filter just strips the
     EOS bucket so that we don't confuse the main request's core output
     filter by sending multiple EOS buckets.  This change also makes sub
     requests start to send EOS buckets when they are finished.
     [Ryan Bloom]

  *) Make ap_bucket_(read|destroy|split|setaside) into macros.  Also
     makes ap_bucket_destroy a return void, which is okay because it
     used to always return APR_SUCCESS, and nobody ever checked its
     return value anyway.
     [Cliff Woolley <cliffwoolley@yahoo.com>]

  *) Remove the index into the bucket-type table from the buckets
     structure.  This has now been replaced with a pointer to the
     bucket_type.  Also add some macros to test the bucket-type.
     [Ryan Bloom]

  *) Renamed all MODULE_EXPORT symbols to AP_MODULE_DECLARE and all symbols
     for CORE_EXPORT to AP_CORE_DECLARE (namespace protecting the wrapper)
     and retitled API_EXPORT as AP_DECLARE and APR_EXPORT as APR_DECLARE.
     All _VAR_ flavors changes to _DATA to be absolutely clear.
     [William Rowe]

  *) Add support for /, //, //servername and //server/sharename 
     parsing of <Directory> blocks under Win32 and OS2.
     [Tim Costello, William Rowe, Brian Harvard]

  *) Remove the function pointers from the ap_bucket type.  They have been
     replaced with a global table.  Modules are allowed to register bucket
     types and use then use those buckets.
     [Ryan Bloom]

  *) mod_cgid: In the handler, shut down the Unix socket (only for write) 
     once we finish writing the request body to the cgi child process; 
     otherwise, the client doesn't hit EOF on stdin.  Small request bodies 
     worked without this change (for reasons I don't understand), but large 
     ones didn't.  [Jeff Trawick]

  *) Remove file bucket specific information from the ap_bucket type.
     This has been moved to a file_bucket specific type that hangs off
     the data pointer in the ap_bucket type.
     [Ryan Bloom]

  *) Input filtering now has a third argument.  This is the amount of data
     to read from lower filters.  This argument can be -1, 0, or a positive
     number.  -1 means give me all the data you have, I'll deal with it and
     let you know if I need more.  0 means give me one line and one line
     only.  A positive number means I want no more than this much data.

     Currently, only 0 and a positive number are implemented.  This allows
     us to remove the remaining field from the conn_rec structure, which
     has also been done.
     [Ryan Bloom] 
    
  *) Big cleanup of the input filtering.  The goal is that http_filter
     understands two conditions, headers and body.  It knows where it is
     based on c->remaining.  If c->remaining is 0, then we are in headers,
     and http_filter returns a line at a time.  If it is not 0, then we are
     in body, and http_filter returns raw data, but only up to c->remaining
     bytes.  It can return less, but never more.
     [Greg Ames, Ryan Bloom, Jeff Trawick]

  *) mod_cgi: Write all of the request body to the child, not just what
     the kernel would accept on the first write.  [Jeff Trawick]

  *) Back out the change that moved the brigade from the core_output_filters
     ctx to the conn_rec.  Since all requests over a given connection
     go through the same core_output_filter, the ctx pointer has the
     correct lifetime.
     [Ryan Bloom]

  *) Fix another bug in the send_the_file() read/write loop. A partial
     send by apr_send would cause unsent data in the read buffer to
     get clobbered. Complete making send_the_file handle partial
     writes to the network.
     [Bill Stoddard]

  *) Fix a couple of type fixes to allow compilation on AIX again
     [Victor J. Orlikowski <v.j.orlikowski@gte.net>]

  *) Fix bug in send_the_file() which causes offset to be ignored
     if there are no headers to send.
     [Bill Stoddard]

  *) Handle APR_ENOTIMPL returned from apr_sendfile in the core
     filter. Useful for supporting Windows 9* with a binary
     compiled on Windows NT.
     [Bill Stoddard]

Changes with Apache 2.0a7

  *) Reimplement core_output_filter to buffer/save bucket brigades
     across multiple calls to the core_filter. The brigade will be
     sent when either MIN_BYTES_TO_SEND or MAX_IOVEC_TO_WRITE
     thresholds are hit or the EOS bucket is received.
     [Bill Stoddard]

  *) Create experimental filter (buffer_filter) that coalesces bytes 
     into one large buffer before invoking the next filter in the
     chain. This filter is particularly useful with the current 
     implementation of mod_autoindex when it inserted above the
     chunk_filter. mod_autoindex generates a lot of brigades that
     containing buckets holding just a few bytes each. The
     buffer_filter coalesces these buckets into a single large bucket.
     [Bill Stoddard]

  *) Add apr_sendfile() support into the core_output_filter.
     [Bill Stoddard]

  *) Add apr_sendv() support into the core_output_filter.
     [Bill Stoddard]

  *) Fix mod_log_config so that it compiles cleanly with BUFFERED_LOGS
     [Mike Abbott <mja@sgi.com>]

  *) Remove ap_send_fb.  This is no longer used in Apache, and it doesn't
     make much sense, because Apache uses buckets instead of BUFFs now.
     [Ryan Bloom]

  *) send_the_file now falls back to a read/write loop on platforms that
     do not have sendfile.
     [Ryan Bloom and Brian Havard]

  *) Install apachectl correctly, and substitute the proper values so
     that it works again.  [Ryan Bloom]

  *) Better(??) handle platforms that lack sendfile().
     [Jim Jagielski]

  *) APR now has UUID generation/formatting/parsing support.
     [Greg Stein]

  *) Begin the http_filter.  This is an input filter that understands
     the absolute basic amount required to parse an HTTP Request.  The
     goal is to be able to split headers from request body before passing
     the data back to the other filters.
     [Ryan Bloom]

  *) Bring forward from 1.3.13 the config directory implementation
     [Jim Jagielski]

  *) install apxs if it is created
     [Ryan Bloom]

  *) Added APR_IS_STATUS_condition test macros to eliminate canonical error
     conversions.  [William Rowe]

  *) Now that we have ap_add_input_filter(), rename ap_add_filter() to 
     ap_add_output_filter().  [Jeff Trawick]

  *) Multiple build and configuration fixes
    Build process:

      -add datadir and localstatedir substitutions
      -fix layout name
      -fix logfilename misspelling
      -fix evaluation of installation dir variables and
      -replace $foobar by $(foobar) to be usefull in the makefile
    
    Cross compile:
    
      -add rules for cross-compiling in rules.mk. Okay, rule to check for
       $CC_FOR_BUILD is still missing
      -use CHECK_TOOL instead of CHECK_PROG for ranlib
      -add missing "AR=@AR@" to severaly Makefile.in's
      -cache result for "struct rlimit"
      -compile all helper programs with native and cross compiler
       and use the native version to generate header file
     ["Rüdiger" Kuhlmann <Tadu@gmx.de>]

  *) Prepare our autoconf setup for autoconf 2.14a and for cross-
     compiling.
     ["Rüdiger" Kuhlmann <Tadu@gmx.de>]

  *) Fix a bug where a client which only sends \n to delimit header
     lines (netcat) gets a strange looking HTTP_NOT_IMPLEMENTED 
     message.  Start working on ebcdic co-existance with input 
     filtering.
     [William Rowe, Greg Ames]

  *) If mod_so is enabled in the server always create libexec, even
     if there are no modules installed in this directory.  This is a
     requirement for APXS to work correctly.
     [Ryan Bloom]

  *) Connection oriented output filters are now stored in the 
     conn_rec instead of the request_rec.  This allows us to add the
     output filter in the pre-connection phase instead of the
     post_read_request phase, which keeps us from trying to write an
     error page before we have a filter to write to the network.
     [Ryan Bloom, Jeff Trawick, and Greg Ames]

  *) Cleaning up an mmap bucket no longer deletes the mmap.  An
     mmap can be used across multiple buckets (default_handler with
     byte ranges, mod_file_cache, mod_mmap_static), so cleanup of
     the mmap itself can't be associated with the bucket.
     [Jeff Trawick]

  *) Add .dll caching directive ISAPICacheFile to mod_isapi.
     [William Rowe]

  *) Radical surgery to improve mod_isapi support under Win32.
     Includes a number of newer ServerSupportFunction calls, support
     for ReadClient (in order to retrieve POSTs greater than 48KB),
     and general bug fixes to more reliably load ISAPI .dll's and
     prevent leaking handle resources.  Note: There are still 
     discrepancies between IIS's and Apache's ServerVariables, and
     async calls are still not supported.  Additional warnings are
     logged to facilitate debugging of unsupported ISAPI calls.
     [William Rowe]

  *) Add input filtering to Apache.  The basic idea for the input
     filters is the same as the ideas for output filters.  The biggest
     difference is that instead of calling ap_pass_brigade, ap_get_brigade
     should be called, and the order of execution for the filter itself is
     different.  When writing an output filter, a brigade is passed in,
     and filters operate directly on that brigade, when done, they call
     ap_pass_brigade.  Input filters are the exact opposite.  Because input
     is not a push operation, filters first call ap_get_brigade.  When this
     function returns, the input filter will be left with a valid brigade.
     The input filter should then operate on the brigade, and return.
     [Ryan Bloom]

  *) Fix building on BSD/OS using its native make. The build system
     falls back to the BSD .include directive on that host platform.
     [Sascha Schumann]

  *) Expand dbmmanage to allow -d -m -s -p options for Crypt, MD5,
     SHA1 and plaintext password encodings.  Make feature tests a
     bit more flexible.  [William Rowe]

  *) Charset translation: mod_charset_lite handles output content 
     translation in a filter.  mod_charset_lite no longer ignores 
     subrequests.  A bunch of cruft related to BUFF's support for
     translating request and response bodies was removed.  
     [Jeff Trawick]

  *) Move the addition of the CORE filter to the post_read_request
     hook in http_core.c.  This removes the need to add the filter in
     multiple places and allows for an SSL module to be added much
     simpler. [Ryan Bloom]

  *) SECURITY: CVE-2000-0913 (cve.mitre.org)
     Fix a security problem that affects certain configurations of
     mod_rewrite. If the result of a RewriteRule is a filename that
     contains expansion specifiers, especially regexp backreferences
     $0..$9 and %0..%9, then it may be possible for an attacker to
     access any file on the web server. [Tony Finch]

  *) Fix a bug where errors that are detected during early request parsing
     don't produce visible HTTP error messages at the browser, because
     the core_filter wasn't present.  [Greg Ames]

  *) Provide apr_socklen_t as a portability aid. 
     [Victor  J. Orlikowski]

  *) Overhaul of dbmmanage to allow a groups arg (as in Apache 1.2)
     as well as a comment arg to the add, adduser and update cmds.
     update allows the user to clear or preserve pw/groups/comment.
     Fixed a bug in dbmmanage that prevented the check option from 
     parsing a password followed by :group... text.  Corrected the
     seed calcualation for Win32 systems, and added -lsdbm support.
     [William Rowe]

  *) Configured mod_auth_dbm to compile with sdbmlib under Win32.
     [William Rowe]

  *) Avoid a segfault when parsing .htaccess files.  An 
     uninitialized tree pointer was passed to ap_build_config().
     [Jeff Trawick]

  *) Change the way that inet_addr & inet_network are checked for
     in APR's configure process to allow BeOS BONE to correctly
     find them. With this change BeOS BONE now builds from source
     with no problems.  [David Reid]

  *) Fix a bug in apr_create_process() for Unix.  The NULL signifying
     the end of the parameters to execve() was stored in the wrong
     location, overlaying the storage beyond the newargs[] array and 
     also passing uninitialized storage to execve(), which would 
     sometimes fail with EFAULT.  [Jeff Trawick]

  *) Fix a bug parsing configuration file containers.  With a sequence
     like this in the config file

       <IfModule mod_kilroy.c>
       any stuff
       </IfModule>
       <IfModule mod_lovejoy.c>
       (blank line)
       any stuff
       </IfModule>

     the second container would be terminated at the blank line due to
     sediment in the buffer from reading the prior </IfModule> and an 
     error message would be generated for the real </IfModule> for the
     second container.  Also due to this problem, any two characters 
     could be used for "</" in the close of a container.  
     [Jeff Trawick]

  *) ap_add_filter prototype changed to remove the ctx pointer.  The
     pointer still remains in the filter structure, but it can not be
     a part of the ap_add_filter prototype.  The reason is that when
     the core uses AddFilter to add a filter to the stack it doesn't
     know how to allocate the ctx pointer, or even how much memory should
     be allocated.  The filters will have to be responsible for allocating
     the ctx memory when they need it.
     [Ryan Bloom]

  *) Add an AddFilter directive.  This directive takes a list of filters
     that should be activated for the requested resource.
     [Ryan Bloom]

  *) apr_snprintf(): Get quad format strings working on OS/390 (and perhaps
     some other platforms).  [Jeff Trawick]

  *) Modify mod_include to be a filter.  Currently, it has only been tested
     on actual files, but it should work for CGI scripts too.
     [Ryan Bloom]

  *) apr_putc(), apr_puts() for Unix: handle buffered files and interrupted
     writes.  apr_flush() for Unix: handle interrupted writes.
     [Jeff Trawick]

  *) NameVirtualHost can now take "*" as an argument instead of
     an IP address. This allows you to create a purely name-based
     virtual hosting server that does not have any IP addresses in
     the configuration file and which ignores the local address
     of any connections. PR #5595, PR #4455 [Tony Finch]

  *) Fix some compile warnings in mod_mmap_static.c
     [Mike Abbott <mja@sgi.com>]

  *) Fix chunking problem with CGI scripts.  The general problem was that
     the CGI modules were adding an EOS bucket and then the core added an
     EOS bucket.  The chunking filter finalizes the chunked response when it
     encounters an EOS bucket.  Because two EOS buckets were sent, we
     finalized the response twice.  The fix is to make sure we only send one
     EOS, by utilizing a flag in the request_rec.
     [Ryan Bloom]

  *) apr_put_os_file() now sets up the unget byte appropriately on Unix
     and Win32.  Previously, the first read from an apr_file_t set up via
     apr_put_os_file() would return a '\0'.  [Jeff Trawick]

  *) Mod_cgid now creates a single element bucket brigade, with a pipe
     bucket, instead of using BUFF's and ap_r*.
     [Ryan Bloom]

  *) APRVARS.in no longer overwrites the EXTRA_LIBS variable.
     [Mike Abbott <mja@sgi.com>]

  *) Remove ap_bopenf from buff code.  This required modifying the file_cache
     code to use APR file's directly instead of going through BUFFs.
     [Ryan Bloom]

  *) Fix compile break on some platforms for mod_mime_magic.c
     [John K. Sterling <sterling@covalent.net>]

  *) Fix merging of AddDefaultCharset directive.
     PR #5872 (1.3) [Jun Kuriyama <kuriyama@imgsrc.co.jp>]

  *) Minor revamp of the rlimit sections of code. We now test
     explicitly for setrlimit and getrlimit. Also, unixd_set_rlimit()
     is now "available" even if the platform doesn't support
     the rlimit family (it's just a noop though). [Jim Jagielski]

  *) Migrate the pre-selection of which MPM to use for specific
     platforms to hints.m4, which contains (or should contain)
     all platform specific "hints". [Jim Jagielski]

  *) Remove IOLs from Apache.  With filtering, IOLs are no longer necessary
     [Ryan Bloom]

  *) Add tables with non-string/binary values to APR.
     [Ken Coar]

  *) Fix some bad calls to ap_log_rerror() in mod_rewrite. 
     [Jeff Trawick]

  *) Update PCRE to version 3.2.  [Ryan Bloom]

  *) Change the way buckets' destroy functions are called so that
     they can be more directly used when changing the type of a
     bucket in place. [Tony Finch]

  *) Add generic support for reference-counting the resources used by
     buckets, and alter the HEAP and MMAP buckets to use it. Change
     the way buckets are initialised to support changing the type of
     buckets in place, and use it when setting aside TRANSIENT buckets.
     Change the implementation of TRANSIENT buckets so that it can be
     mostly shared with IMMORTAL buckets, which are now implemented.
     [Tony Finch]

Changes with Apache 2.0a6

  *) Add support to Apache and APR for dsos on OS/390.  [Greg Ames]

  *) Add a chunking filter to Apache.  This brings us one step closer
     to removing BUFF. [Ryan Bloom]

  *) ap_add_filter now adds filters in a LIFO fashion.  The first filter
     added to the stack is the last filter to be called.  [Ryan Bloom]

  *) Apache 2.0 has been completely documented using Scandoc.  The
     docs can be generated by running 'make docs'.  [Ryan Bloom]

  *) Add filtered I/O to Apache.  This is based on bucket brigades,
     Currently the buckets still use BUFF under the covers, but that
     should change quickly.  The only currently written filter is the
     core filter which just calls ap_bwrite.  [The Apache Group]

  *) APR locks on Unix: Let APR_LOCKALL locks work when APR isn't
     built with thread support.  [Jeff Trawick]

  *) Abort configuration if --with-layout was specified and there's
     no layout definition file.  [Ken Coar]

  *) Add support for '--with-port=n' option to configure.  [Ken Coar]

  *) Add support for extension methods for the Allow response header
     field, and an API routine for accessing r->allowed and the
     list of extension methods in a unified manner.  [Ken Coar]

  *) mod_cern_meta: fix broken file reading loop in scan_meta_file().
     [Rob Simonson <simo@us.ibm.com>]

  *) Get xlate builds working again.  The apr renaming in 2.0a5 broke
     APACHE_XLATE builds.  [Jeff Trawick]

  *) A configuration file parsing problem was fixed.  When the 
     configuration file started with an IfModule/IfDefine container, 
     only the last statement in the container would be retained.  
     [Jeff Trawick]

Changes with Apache 2.0a5

  *) Perchild is serving pages after passing them to different child
     processes.  There are still a lot of bugs, but this does work.  I
     have made requests against the same installation of Apache, and had
     different servers use different user IDs to serve the responses.
     This change moves to using socketpair instead of an AF_UNIX socket.
     [Ryan Bloom]

  *) Perchild MPM still doesn't work perfectly, but it is serving pages.
     It can't seem to pass between child processes yet, but I think we
     are closer now than before.  This moves us back to using Unix
     Domain Sockets.  [Ryan Bloom]

  *) libapr functions and types renamed with apr_ prefix.
     #include "apr_compat.h" for 1.3.x backwards compat
     [Perl]

  *) Fix problems with APR sockaddr handling on Win32.  It didn't always
     return the right information on the local socket address.
     [Gregory Nicholls <gnicholls@level8.com>]

  *) ap_recv() on Win32: Set bytes-read to 0 on error.  
     [Gregory Nicholls <gnicholls@level8.com>]

  *) Add an option to not detach from the controlling terminal without
     going into single process mode.  This allows for much easier
     debugging of the process startup code. [Ryan Bloom]

  *) ab: don't use perror() to report the failure of an APR function.
     [Jeff Trawick]

  *) Make dexter, mpmt_pthread, and perchild MPMs not destroy the
     scoreboard on graceful restarts.
     [Ryan Bloom]

  *) Fix segfault/SIGSEGV when running gzip from mod_mime_magic.c.
     An invalid ap_proc_t was passed to ap_create_process().
     [Jeff Trawick]

  *) Allow modules to register filters.  Those filters are still
     never called, but this is a step in the right direction.
     [Ryan Bloom and Greg Stein]

  *) Register the mod_cgid daemon process for cleanup so that it is
     killed at termination if it does not die when the parent gets
     SIGTERM.  This change is to fix occasional problems where the
     process stays around.  Bugs in similar logic in mod_rewrite and
     mod_include were also fixed.  [Jeff Trawick]

  *) Fix a bug in the time handling.  Basically, we were imploding a time
     in ap_parseHTTPdate, but it had bogus data in the exploded time format.
     Namely, tm_usec and tm_gmtoff were not filled out.  ap_implode_time
     uses those two fields to adjust the time value.  Because of the HTTP
     spec, both of those values can be zero'ed out safely.  This fixes
     the bug correctly.  [Ryan Bloom]

  *) Fix a couple of place in the Windows code where the wrong error
     code was being returned. [Gregory Nicholls <gnicholls@level8.com>]

  *) Fix POOL_DEBUG (at least for prefork mpm). [Dean Gaudet]

  *) Added the APR_EOL_STR macro for platform dependent differences in 
     logfiles and other raw text (such as all APR files).  Fixes logfiles
     not terminated with cr/lf sequences in Win32.  [William Rowe]

  *) Move all strings functions in APR to src/lib/apr/strings and create
     apr_strings.h for the prototypes. [Ryan Bloom]

  *) APR lock fixes: when using SysV sems, flock(), or fcntl(), be sure
     to repeat the syscall until we stop getting EINTR.  I noticed a
     related problem at termination (SIGTERM) on FreeBSD when using
     fcntl().  Apache 1.3 had these new loops too.  Also, make the flock() 
     implementation work properly with child init.  Previously, ap_lock()
     was essentially a no-op because all children were using different
     locks and thus nobody ever blocked.  [Jeff Trawick]

  *) The htdocs/ tree has been moved out of the CVS source tree into
     a separate area for easier development.  This has NO EFFECT on
     end-users or Apache installations.  [Ken Coar]

  *) Integrate the mod_dav module for WebDAV protocol handling. This
     adds the dav and dav_fs modules, the SDBM library, and additional
     XML handling utilities. [Greg Stein]

  *) Clean out obsolete names (from httpd.h) for the HTTP Status Codes
     [Greg Stein]

  *) Update the lib/expat-lite/ library (bring forward changes from
     the Apache 1.3 repository). [Greg Stein]

  *) If sizeof(long long) == sizeof(long), then prefer long in APR
     configure.in.  [Dave Hill <ddhill@zk3.dec.com>]

  *) Add ap_sendfile for Tru64 Unix.  Also, add an error message for
     machines where sendfile is detected, but nobody has written ap_sendfile.
     [Dave Hill <ddhill@zk3.dec.com>]

  *) Compile fixes in mod_mmap_static.  [Victor J. Orlikowski]

  *) ab would start up more connections than needed, then quit when the
     desired number were finished. Also fixed a logic error involving
     ab keepalives.  [Victor J. Orlikowski]

  *) WinNT: Implement non-blocking pipes with timeouts to communicate
     with CGIs. Apache 2.0a4 had non-blocking pipes but without 
     timeouts (i.e, if a timeout was specified, the pipe reverted to
     a full blocking pipe). Now the behaviour is more in line with
     Unix non-blocking pipes.
     [Bill Stoddard]

  *) WinNT: Implement accept socket reuse. Using mod_file_cache to
     cache open file handles along with accept socket reuse enables
     Apache 2.0 to serve non-keepalive requests for static files at
     3x the rate of Apache 1.3.(e.g, Apache 1.3 will serve 400 rps
     and Apache 2.0 will serve almost 1200 rps on my system).
     [Bill Stoddard]

  *) Merge mod_mmap_static function into mod_file_cache. mod_file_cache
     supports two config directives, mmapfile (same behavious as
     mod_mmap_static) and cachefile. Use the cachefile directive
     to cache open file handles. This directive only works on systems
     that have implemented the ap_sendfile API. cachefile works today
     on Windows NT, but has not been tested on any flavors of Unix.
     [Bill Stoddard]

  *) Cleanup the configuration.  With the last few changes the
     configuration process automatically:
         inherits information about how to build from APR.  Allowing
         APR to inform Apache that it should or should not use -ldl
        
         Detects which mod_cgi should be used mod_cgi or mod_cgid,
         based on the threading model

         Apache calls APR's configure process before finishing it's
         configuration processing, allowing for more information flow
         between the two.
     [Ryan Bloom]
         

  *) Change Unix and Win32 ap_setsockopt() so that APR_SO_NONBLOCK
     with non-zero argument makes the socket non-blocking.  BeOS and
     OS/2 already worked this way.  [Jeff Trawick]

  *) ap_close() now calls ap_flush() for buffered files, so write
     operations work a whole lot better on buffered files.
     [Jeff Trawick]

  *) Fix error messages issued from MPMs which explain where to change
     compiled-in limits (e.g., ThreadsPerChild, MaxClients, StartTreads).
     [Greg Ames]

  *) ap_create_pipe() now leaves pipes in blocking state.  (This helps 
     reduce the number of syscalls on Unix.)  ap_set_pipe_timeout() is
     now the way that the blocking state of a pipe is manipulated.
     ap_block_pipe() is gone.  [Jeff Trawick]

  *) Correct the problem where the only local host name that the IP stack
     can discover are 'undotted' private names.  If no fully qualified
     domain name can be identified, the default ServerName will be set to
     the machine's IP address string. A warning is always provided if the
     ServerName not specified, but assumed.  Solves PR6215 [William Rowe]

  *) Repair problems with config file processing which caused segfault
     at init when virtual hosts were defined and which caused ServerName to
     be ignored when there was no valid DNS setup.  [Jeff Trawick]

  *) Removed pointless ap_is_aborted macro function. [Roy Fielding]

  *) Add ap_sendfile implementation for AIX
     [Victor J. Orlikowski]

  *) Repair C++ compatibility in ap_config.h, apr_file_io.h, 
     apr_network_io.h, and apr_thread_proc.h.  
     [Tyler J. Brooks <tylerjbrooks@home.com>, Jeff Trawick]

  *) Bring the allocation and pool debugging code back into a working
     state.  This will need to be tested as so far it's only been used on
     BeOS. [David Reid]

  *) Change configuration command setup to be properly typesafe when in
     maintainer mode. Note that this requires a compiler that can initialise
     unions. [Ben Laurie]

  *) Turn on buffering for config file reads.  Part of this was to
     repair buffered I/O support in Unix and implement buffered
     ap_fgets() for all platforms.  [Brian Havard, Jeff Trawick]

  *) Win32: Fix problem where UTC offset was not being set correctly
     in the access log. Problem reported on news group by Jerry Baker.
     [Bill Stoddard]

  *) Fix segfault when reporting this type of syntax error:
     "</container> without matching <container> section", where
     container is VirtualHost or Directory or whatever.
     [Jeff Trawick]

  *) SECURITY: CAN-2000-1204 (cve.mitre.org)
     Prevent the source code for CGIs from being revealed when 
     using mod_vhost_alias and the CGI directory is under the document root
     and a user makes a request like http://www.example.com//cgi-bin/cgi
     as reported in <news:960999105.344321@ernani.logica.co.uk>
     [Tony Finch]

  *) Add support for the new Beos NetwOrking Environment (BONE)
     [David Reid]

  *) xlate: ap_xlate_conv_buffer() now tells the caller when the
     final input char is incomplete; ap_bwrite_xlate() now handles
     incomplete final input chars.  [Jeff Trawick]

  *) Yet another update to saferead/halfduplex stuff -- need to ensure
     that a bhalfduplex call occurs before logging or else DNS and
     such can delay the last packet of the response.  [Dean Gaudet]

  *) Some syscall reduction in APR on unix -- don't seek when setting
     up an mmap; and don't fcntl() more than once per socket.
     [Dean Gaudet]

  *) When mod_cgid is started as root, the cgi daemon now switches 
     to the configured User/Group (like other httpd processes) 
     instead of continuing as root.  [Jeff Trawick]

  *) The prefork MPM now uses an APR lock for the accept() mutex.
     It has not been getting a lock at all recently.  httpd -V now 
     displays APR's selection of the lock mechanism instead of the 
     symbols previously respected by prefork.  [Jeff Trawick]

  *) Change the mmap() feature test to check only for existence.
     The previous check required features not used by Apache.
     [Greg Ames]

  *) Fix a couple of bugs in mod_cgid:  The cgi arguments were
     sometimes mangled.  The len parm to accept() was not 
     initialized, leading sometimes to an endless loop of failed
     accept() calls on OS/390 and anywhere else that failed the call
     if the len was negative.  Use <sys/un.h> for struct sockaddr_un
     instead of declaring it ourselves to fix a compilation problem
     on Solaris.  [Jeff Trawick]

  *) Add Resource limiting code back into Apache 2.0. [Ryan Bloom]

  *) Fix zombie process problem with mod_cgi.  [Jeff Trawick]

  *) Port mod_mmap_static to 2.0.  Make it go faster.  [Greg Ames]

  *) Fix storage overlay when loading dsos.  Symptom: Apache dies at
     initialization if ALLOC_DEBUG is defined; no known symptom 
     otherwise.  [Jeff Trawick]

  *) Fix typo in configure script when checking for mod_so.  bash
     doesn't seem to have a problem but /bin/sh on Solaris does.
     Symptom: "./configure: test: unknown operator =="
     [Jeff Trawick]
   
  *) Rebind the Win32 NT and 9x services control into the MPM.  
     All console, WinNT SCM and Win9x pseudo-service control code is
     now wrapped within the WinNT MPM.
     [William Rowe]

  *) Make a copy of getenv("PATH") before storing for later use.  Some
     getenv() implementations use the same storage for successive calls.
     CGIs on OS/390 had a bad PATH due to this.  [Jeff Trawick]

  *) Server Tokens work in 2.0 again.  This also propogates the change
     to allow just the product name in the server string using
     PRODUCT_ONLY.
     [Ryan Bloom]

Changes with Apache 2.0a4

  *) EBCDIC: Rearrange calls to ap_checkconv() so that most handlers
     won't need to call it.  [Greg Ames, Jeff Trawick]

  *) Move pre_config hook call to between configuration read and config
     tree walk.  This allows all modules to implement pre_config hooks
     and know that they will be called at an appropriate time.
     [Ryan Bloom] 

  *) mod_cgi, mod_cgid: Make ScriptLog directive work again.  
     [Jeff Trawick]

  *) Add pre-config hooks back to all modules.
     [Ryan Bloom]

  *) Fix a SIGSEGV in ap_md5digest(), which is used when you have
     ContentDigest enabled and we can't/don't mmap the file. 
     [Jeff Trawick]

  *) We now report the correct line number for syntax errors in config
     files.  [Ryan Bloom, Greg Stein, Jeff Trawick]

  *) Brought mod_auth_digest up to synch with 1.3, fixed ap_time_t-
     related bugs, and changed shmem/locking to use apr API. Shared-mem
     is currently disabled, however, because of problems with graceful
     restarts. [Ronald Tschalär]

  *) Fix corruption of IFS variable in --with-module= handling.  
     Depending on the user's shell or customization thereof, there 
     would be errors generating ap_config_auto.h later in the configure
     procedure.  [Jeff Trawick]

  *) mod_cgi: Restore logging of stderr from child process when ScriptLog 
     isn't used (as in 1.3), except that on Unix it is now logged via 
     ap_log_rerror() instead of by the child having STDERR_FILENO refer
     to the error log.  [Greg Ames, Jeff Trawick]

  *) Add '-D' argument processing for run time configuration defines.
     [William Rowe]

  *) Organize http_main.c as independent code, such that no code or
     global data is exported from it.  WIN32 will dynamically link it
     to the server core, so this will prevent mutual dependency.
     [William Rowe]

  *) Add separate dynamic linkage tags APR_EXPORT(), APR_EXPORT_NONSTD()
     and APR_VAR_EXPORT to correctly resolve apr functions and globals.
     [William Rowe]

  *) Add Win9x service execution and Ctrl+C/Ctrl+Break/Shutdown handlers.
     [William Rowe, Jan Just Keijser <KEIJSERJJ@logica.com>]

  *) Add mod_charset_lite for configuring character set translation.
     [Jeff Trawick]

  *) Add '-n' option to htpasswd to make it print its user:pw record
     on stdout rather than having to frob a text file.  [Ken Coar]

  *) Fix saferead.  Basically, we flush the output buffer if a read on the
     input will block.
     [Ryan Bloom]
 
  *) APR: Add ap_xlate_get_sb() so that an app can find out whether or not
     a conversion is single-byte only. [Jeff Trawick]

  *) BEOS: ap_shutdown should return APR_SUCCESS or errno. Note that
     the BeOS 5.0 documentation says that shutdown doesn't work yet.
     [Roy Fielding]

  *) Fix some minor errors where pid was being manipulated as an int
     instead of the portable pid_t.  [Roy Fielding]

  *) Fix some error log prints that were printing the pointer to a
     structure rather than the pid within the structure.
     [Jeff Trawick, Roy Fielding]

  *) ab: Fix a command-line processing bug; track bad headers in 
     err_response; support reading headers up to 2K. 
     [Ask Bjoern Hansen <ask@valueclick.com>]

  *) Fix ap_resolve_env() so that it handles new function added in a prior
     alpha (see "Added the capability to do ${ENVVAR} constructs in the
     config file.") as well as the constructs used by mod_rewrite.
     [Paul Reder <rederpj@raleigh.ibm.com>]

  *) Apache 2.0 builds and runs on OS/390. [Jeff Trawick, Greg Ames]

  *) Change the EBCDIC support in functions for MD5, SHA1, and base 64 to use
     APR to perform translation, instead of accessing the hard-coded tables
     in 1.3's ebcdic.c. [Jeff Trawick]

  *) Fix some bugs (mostly lost 1.3 code) in ab's command-line processing. 
     [Jeff Trawick]

  *) Add the ability to hook into the config file reading phase.  Basically
     if a directive is specified EXEC_ON_READ, then when that directive is
     read from the config file, the assocaited function is executed.  This
     should only be used for those directives that must muck with HOW the
     server INTERPRETS the config.  This should not be used for directives
     that re-order or replace items in the config tree.  Those changes should
     be made in the pre-config step.
     [Ryan Bloom]

  *) Add mod_example to the build system.
     [Tony Finch]

  *) APR: Add ap_xlate_conv_byte() to convert one char between single-
     byte character sets. [Jeff Trawick]

  *) Pick up various EBCDIC fixes from 1.3 (from Martin
     Kraemer and Oliver Reh originally according to the change log).
     [Jeff Trawick]

  *) Fix a couple of problems in RFC1413 support (controlled by the
     IdentityCheck directive).  Apache did not build the request string
     properly and more importantly Apache would loop forever if the 
     would-be ident server dropped the connection before sending a
     properly terminated response. [Jeff Trawick]

  *) apxs works in 2.0.
     [Ryan Bloom]

  *) Reliable piped logs work in 2.0.
     [Ryan Bloom]

  *) Introduce a hash table implementation into APR to be used for
     replacing tables and other random data structures in Apache.
     [Tony Finch]

  *) Add some more error reporting to htpasswd in the case of problems
     generating or accessing the temporary file.  Also, pass in a
     buffer if the implementation knows how to use it (i.e., if L_tmpnam
     is defined).  [Ken Coar]

  *) Configure creates config.nice now containing your configure
     options. Syntax: ./config.nice [--more-options]
     [Sascha Schumann]

  *) Fix various return code problems in APR on Win32.  For most of
     these, APR was returning APR_EEXIST instead of GetLastError()/
     WSAGetLastError().  [Jeff Trawick]

  *) Make piped logs work again in version 2.0
     [Ryan Bloom]

  *) Add VPATH support to UNIX build system of Apache and APR.
     [Sascha Schumann]

  *) Fix ap_tokenize_to_argv to respect the const arguments that are
     passed to it.
     [Ryan Bloom]

  *) Fix mm's memcpy/memset macros, pointer arithmetic was broken.
     Patch submitted to author.
     [Sascha Schumann]

  *) Fix mm configuration on Solaris 8 x86 and OS/390.  Don't require
     /sbin in PATH on FreeBSD (all submitted to rse previously) 
     [Jeff Trawick]

  *) Fix building Pthread-based MPMs on OpenBSD
     [Sascha Schumann] PR#26

  *) Fix ap_readdir() problem on systems where d_name[] field in
     struct dirent is declared with only one byte.  (This problem only 
     affected multithreaded builds.)  This caused a segfault during
     pool cleanup with mod_autoindex on Solaris (Solaris 8 x86, at 
     least). [Jeff Trawick]

  *) Fix some make-portability problems on at least Tru64, Irix
     and UnixWare.
     [Sascha Schumann] PR#18, PR#39

  *) Add ap_sigwait() to support old-style sigwait() on systems
     like OS/390 and UnixWare.
     [Sascha Schumann] 

  *) Add POSIX-thread flags for more platforms.
     [Sascha Schumann]

  *) Fix some minor bugs in ap_strerror().  Teach ap_strerror()
     (on Unix, at least) to handle resolver errors.  Fix a bug in
     the definition of APR_ENOMEM so that ap_strerror() can spit
     out the correct error message for it.
     [Jeff Trawick]

Changes with Apache 2.0a3

  *) mod_so reports ap_os_dso_error() if ap_dso_load() fails
     [Doug MacEachern]

  *) API: *HOOK* macros now have an AP_ prefix
     [Doug MacEachern]

  *) Win32: Eliminate redundant calls to initialize winsock.
     [Tim Costello <timcostello@ozemail.com.au>]

  *) Fix bugs initializing ungetchar for pipes. 
     [Chia-liang Kao <clkao@CirX.ORG>]

  *) The ab program in the src/support directory is now portable using
     APR.
     [Ryan Bloom]

  *) Support directory is being compiled when the server is built
     [Ryan Bloom]

  *) The configure option --with-program-name has been added to allow
     developers to rename the executable at configure time.  This also
     changes the name of the config files to match the executable's name.
     [Ryan Bloom]

  *) mod_autoindex: Add `IndexOptions +VersionSort', to nicely sort filenames
     containing version numbers. [Martin Pool]

  *) ap_open(..,APR_OS_DEFAULT,..) uses perms 0666 instead of 0777 on
     Unix; access_log and error_log now created with these perms; non-
     Unix is unaffected [Jeff Trawick]
     
  *) Finished move of ap_md5 routines to apr_md5.  Removed ap_md5.h.
     Replaced more magic numbers with MD5_DIGESTSIZE.
     [William Rowe, Roy Fielding]

  *) Win32: Get mod_auth_digest compiling and added to the Windows
     build environment. Not tested and I'd be suprised if it 
     actually works. [Bill Stoddard]

  *) Revamp the Win32 make environment. Makefiles have been removed and
     Apache.dsw created to bring together all the pieces. Create new file
     os/win32/BaseAddr.ref to define module base addresses (to prevent
     dll relocation at start-up).
     [William Rowe, Greg Marr, Tim Costello, Bill Stoddard]

  *) [EBCDIC] Port Paul Gilmartin's CRLF patch from 1.3.  This replaces most
     of the \015, \012, and \015\012 constants with macros.
     [Greg Ames]
     
  *) Add ap_xlate_open() et al for translation of text between different 
     character sets.  The initial implementation requires iconv().
     [Jeff Trawick]

  *) More FAQs and answers from comp.infosystems.www.servers.unix.
     [Joshua Slive <slive@finance.commerce.ubc.ca>]

  *) CGI output is being timed out now.
     [Ryan Bloom]

  *) Fix the problem with dieing quietly.  dupfile now takes a pool which
     is used by the new apr file.  There is no reason to create a new file
     with the same lifetime as the original file.
     [Ryan Bloom] 

  *) Win32: Attempt to eliminate dll relocation at start-up by specifying
     module base addresses. This will help shooting seg faults
     in the field. [William Rowe <wrowe@lnd.com>]

  *) Update Apache on Windows documentation. Add new document
     describing how to compile Apache on Windows.
     [William Rowe <wrowe@lnd.com>]

  *) ap_set_pipe_timeout(), ap_poll(), and APR_SO_TIMEOUT now take 
     microseconds instead of seconds.  Some storage leaks and other
     minor bugs in related code were fixed.  [Jeff Trawick]

  *) Win32: First cut at getting mod_isapi working under 2.0
     [William Rowe <wrowe@lnd.com>]

  *) First stab at getting mod_auth_digest working under 2.0
     quick change summary:
     - moved the random byte generation (ap_generate_random_bytes) into APR
     - now uses ap_time_t
     - compiles and runs on linux
     - tested with amaya
     [Brian Martin <bmartin@penguincomputing.com>]

  *) Win32: Move the space stripping of physical service names
     fix up from Apache 1.3. #include'ing "ap_mpm.h" fixes up an
     unresolved symbol. Add dependency checking to the
     CreateService call to ensure TCPIP and AFP (winsock) is started
     before Apache.
     [William Rowe <wrowe@lnd.com>]

  *) Win32: Add code to perform latebinding on functions that may
     not exist on all levels of Windows where Apache runs. This
     is needed to allow Apache to start-up on Win95/98. All calls
     to non portable functions should be protected with
     ap_oslevel checks to prevent runtime segfaults. 
     [William Rowe <wrowe@lnd.com>]

  *) Fix fallback default values for SHM_R and SHM_W [Martin Kraemer]

  *) Get lingering_close() working again. [Dean Gaudet, Jeff Trawick]

  *) Win32: Get non-blocking CGI pipe reads working under Windows NT.
     This addresses PR 1623. Still need to address timing out runaway
     CGI scripts. [Bill Stoddard]
 
  *) Win32: Make ap_stat Windows 95/98 friendly
     [William Rowe <wrowe@lnd.com>]                                            

  *) Win32: Fix a bug in ap_get_oslevel which causes GetVersionEx() to 
     always fail. Need to initialise the dwOSVersionInfoSize member of the 
     OSVERSIONINFO struct before calling GetVersionEx, so GetVersionEx 
     always fails. 

     The patch also enhances ap_get_oslevel (and the associated enum) to 
     handle selected service packs for NT4, and adds recognition for 
     Windows 2000. This is useful, eg. if we can recognise NT4 SP2 then 
     we can use ReadFileScatter and WriteFileGather in readwrite.c. 
     [Tim Costello <Tim.Costello@BTFinancialgroup.com>]

  *) Get mod_rewrite building and running, and mod_status building for Win NT
     [Allan Edwards <ake@raleigh.ibm.com>]

  *) Patch to port mod_auth_db to the 2.0 api and also to support 
     Berlekey DB 3.0. It works for me with both Berkeley DB 3.0.55 and 
     2.7.7.  It should work with version 1 as well but I haven't tested it.  
     [Brian Martin <bmartin@penguincomputing.com>]

  *) Get APR DSO code working under Windows. Includes cross platform
     fixes to mod_so.c.
     [Tim.Costello@BTFinancialgroup.com]

  *) Fix some of the Windows APR time functions.
     [William Rowe]

  *) FAQ changes related to tidying up historical documents on the web site.
     [Joshua Slive <slive@finance.commerce.ubc.ca>]

  *) Move Windows DSO code into APR.
     [Bill Stoddard]

  *) Eliminate apr_win.h and apr_winconfig.h (and the ugly #ifdefs they cause).
     Now, apr.h and apr_config.h are generated from apr.hw and apr_config.hw
     at build time. At this point, the server will not compile on Windows because
     of the recent DSO commits. Fixing those next.
     [Bill Rowe & Bill Stoddard]

  *) Added error checking for file I/O APR routines.
     [Jon Travis <jtravis@covalent.net>]

  *) APR: Don't use the values of resolver error codes for the 
     corresponding APR error codes.  On Unix and Win32, return the 
     proper APR error code after a resolver error. [Jeff Trawick]

Changes with Apache 2.0a2

  *) Renamed the executable back to httpd on all platforms other 
     than Win32
     [Ryan Bloom]

  *) Allow BeOS to survive restarts, log properly and a few
     small things it had problems with due to the way it setup
     users and groups. [David Reid]

  *) Get mod_rewrite working with APR locks
     [Paul Reder <rederpj@raleigh.ibm.com>]

  *) Actually remove the sempahore when the lock cleanup routine
     is called on BeOS. [David Reid]

  *) Clear hook registrations between reads of the config file.
     When DSOs are unloaded and re-loaded the old hook pointers may
     no longer be valid. This fix eliminates potential segfaults.
     [Allan Edwards <ake@raleigh.ibm.com>]

  *) Fix a problem with Sigfunc not being defined or bypassed
     if sigaction() wasn't found. [Jim Jagielski]

  *) Fix the locking mechanism on BSD variants.  They now use fcntl
     locks.  This allows the server to start and serve pages.
     [Ryan Bloom]

  *) First cut at getting the Win32 installer to work
     [William Rowe <wrowe@lnd.com>]

  *) Get htpasswd compiling under Windows
     [William Rowe <wrowe@lnd.com>]

  *) Change the log message for a bind() failure to show the
     interface and port number. [Jeff Trawick]

  *) Import the documentation from 1.3.12 and bring parts of it
     up-to-date with respect to the changes that have occurred
     in 2.0.
     [Tony Finch]

  *) BeOS MPM updated.  CGI bug on BeOS fixed.  IP addresses
     now logged correctly on BeOS.
     [David Reid]

  *) Create one makefile for all Win32 distributions (NT/2000/95/98).
     Makefile.win includes the same user interface as the old 
     Makefile.nt 
     [William Rowe <wrowe@lnd.com>, Jeff Trawick <trawick@us.ibm.com>]

  *) Win32 exec now uses COMSPEC environment string for command 
     shell path resolution.
     [William Rowe <wrowe@lnd.com>] PR#3715

  *) Win32: ap_connect() was not returning correct error condition
     PR5866
     [Allen Prescott <allen@clanprescott.com>]

  *) Win32: ap_open() was broken on Win9x because an NT-specific
     flag was passed to CreateFile.  ap_puts() added an unnecessary
     '\n'.
     [Jeff Trawick <trawick@us.ibm.com>]

  *) Put in Korean and Norwegian index.html pages (2.0 and 1.3)
     which where donated by Lee Kuk Hyun and Lorant Czaran. 'Fixed'
     confusing ee/et name and made all extensions language/dialect
     rather than country reflecting. Changed example files to
     explicit reflect the ISO charset and added a few common 
     ones to the example config [dirkx]

  *) Extend external module capability.  To use this, you call
     configure with --with-module=path/to/mod1,path/to/mod2,etc.
     [Ryan Bloom]

  *) Backported the various "default charset" fixes from 1.3.12,
     including the AddDefaultCharset directive. [Jim Jagielski]

  *) Added the capability to do ${ENVVAR} constructs in the
     config file. E.g. 'ServerAdmin ${POSTMASTER}'. As commited
     it does this on a line by line basis; i.e. if the envvar
     expands to something with spaces you have to protect it
     by adding quotes around it (Unless of course you expect it
     to contains more than one argument. Alternatively you
     can compile it on a per token basis; which is what people
     usually expect by setting RESOLVE_ENV_PER_TOKEN. But this
     hampers fancier hacks.
     [Dirk-Willem van Gulik]

  *) Changed the 'ErrorDocument' syntax in that it NO longer
     supports the asymetric

                ErrorDocument 301 "Some message

     Note the opening " quote, without a closing quote. It now
     has either the following syntaxes

                ErrorDocument XXX /local/uri
                ErrorDocument XXX http://valid/url
                ErrorDocument XXX "Some Message"

     The recognition heuristic is: if it has a space it
     is a message. If it has no spaces and starts with a /
     or is a valid URL then treat it that way. Otherwise it
     is assumed to be a message.

     This breaks backward compatibility but makes live a hell
     of a lot easier for GUI's and config file parsers.
     [Dirk-Willem van Gulik]

  *) Changed 'CacheNegotiatedDocs' from its present/not-present
     syntax into a 'on' or 'off' syntax. As it currently is the
     only non nesting token which uses NO_ARGS and thus is an
     absolute pain for any config interface automation. This
     breaks backward compatibility. [Dirk-Willem van Gulik]

  *) Add ability to add external modules to the build process.  This is
     done with --with-module=/path/to/module.  Modules can only be added
     as static modules at this point.
     [Ryan Bloom]

Changes with Apache 2.0a1

  *) Fix FreeBSD 3.3 core dump.
     Basically, ap_initialize() needs to get called before 
     create_process(), since create_process() passes op_on structure
     to semop() to get a lock, but op_on isn't initialized until 
     ap_initialize() calls setup_lock().  Here is a slight
     rearrangement to main() which calls ap_initialize() earlier...
     [Jeff Trawick <trawick@us.ibm.com>]

  *) Enable Apache to use sendfile/TransmitFile API
     [Bill Stoddard, David Reid, Paul Reder]

  *) Re-Implement Win32 APR network I/O APIs and most of the file I/O
     APIs.
     [Bill Stoddard]

  *) Make file I/O and network I/O writev/sendv APIs consistent.
     Eliminate use of ap_iovec_t and use Posix struct iovec.
     Use seperate variable on ap_writev to set the number of iovecs
     passed in and number of bytes written.
     [Bill Stoddard]

  *) Adapt file iol to use APR functions. Replaced ap_open_file() 
     with ap_create_file_iol(). ap_create_file_iol() requires that 
     the file be opened prior to the call using ap_open().
     [Bill Stoddard]

  *) Port mod_include and mod_cgi to 2.0
     [Paul Reder, Bill Stoddard]

  *) ap_send{,v}, ap_recv, ap_sendfile API clarification --
     bytes_read/bytes_written is always valid (never -1).  Plus
     some fixes to buff.c to correct problems introduced by the
     errno => ap_status_t changes a while back.  Plus a fix to
     chunked encoding introduced right at the beginning of 2.0.
     [Dean Gaudet]

  *) Revamped UNIX build system to use autoconf and libtool.
     [Manoj Kasichainula, Sascha Schumann]

  *) port mod_rewrite to 2.0. [Paul J. Reder <rederpj@raleigh.ibm.com>]

  *) SECURITY: More rigorous checking of Host: headers to fix security 
     problems with mass name-based virtual hosting (whether using mod_rewrite
     or mod_vhost_alias).
     [Ben Hyde, Tony Finch]
  
  *) Add back support for UseCanonicalName in <Directory> containers.
     [Manoj Kasichainula]

  *) Added APLOG_STARTUP log type.  This allows us to write an error
     message without any of the date and time information.  As a part
     of this change, I also removed all of the calls to fprintf(stderr
     and replaced them with calls to ap_log_error using APLOG_STARTUP
     writing to stderr is no longer portable, because we don't direct 
     stderr to the error log on all platforms.
     [Ryan Bloom] 
 
  *) Convert error logging functions to take errno as an argument.
     This makes our error logs more portable, because some Windows API's 
     don't set errno.  This change allows us to still output a valid
     message on all of our platforms.
     [Ryan Bloom]

  *) mod_mime_magic runs in 2.0-dev now.
     [Paul Reder <rederpj@raleigh.ibm.com>]

  *) sendfile has been added to APR.
     [John Zedlewski <zedlwski@Princeton.EDU>]

  *) buff.c has been converted to no longer use errno.
     [Manoj Kasichainula]

  *) mod_speling runs in 2.0-dev now: a bug in readdir_r handling and
     interface adaption to APR functions did it. [Martin Kraemer]

  *) Support DSOs properly on 32-bit HP-UX 11.0
     [Dilip Khandekar <dilip@cup.hp.com>]

  *) Updated MM in APR source tree from version 1.0.8 to 1.0.11
     [Ralf S. Engelschall]

  *) Cleaned APR build environment integration and bootstrap APR 
     automatically for developers from src/Configure.
     [Ralf S. Engelschall]

  *) Fixed building of src/support/htpasswd.c
     [Ralf S. Engelschall]

  *) When generating the Location: header, mod_speling forgot
     to escape the spelling-fixed uri. (Forw-Port from 1.3)
     [Martin Kraemer]

  *) Moved mod_auth_digest.c from experimental to standard. [Roy Fielding]

  *) Change all pools to APR contexts.  This is the first step to
     incorporating APR into Apache. [Ryan Bloom]

  *) Move "handler not found" warning message to below the check
     for a wildcard handler.  [Dirk <dirkm@teleport.com>, Roy Fielding]
     PR#2584, PR#2751, PR#3349, PR#3436, PR#3548, PR#4384, PR#4795, PR#4807

  *) Support line-continuation feature in config.option file and
     allow the loading of multiple option sections at once via
     ``--with-option=<section1>,<section2>,...''
     [Ralf S. Engelschall]

  *) Rebuilt CVS repository with Apache 1.3.9 as basis.  [Roy Fielding]

Changes with Apache MPM

  *) Use asynchronous AcceptEx() and a completion port to accept and
     dispatch connections to threads in Windows NT/2000. 
     [Bill Stoddard]

  *) Implement WINNT Win32 MPM from original Win32 code in http_main.c
     [Bill Stoddard]  

  *) Implement the APACI --with-option facility 
     (per default used the config.option file).
     [Ralf S. Engelschall]

  *) MPM BEOS port.  [David Reid <abb37@dial.pipex.com>]

  *) Start to implement module-defined hooks that are a) fast and b) typesafe.
     Replace pre_connection module call with a register_hook call and
     implement pre_connection as a hook. The intent is that these hooks will
     be extended to allow Apache to be multi-protocol, and also to allow the
     calling order to be specified on a per-hook/per-module basis.
     [Ben Laurie]

  *) Implement mpm_* methods as "modules". Each method gets its own
     subdir in src/modules (eg: src/modules/prefork). Selection
     of method uses Rule MPM_METHOD.  [Jim Jagielski]

  *) Port the hybrid server from the apache-apr repository as
     mpm_mpmt_pthread.  [Manoj Kasichainula]

  *) os/unix/unixd.[ch]: detach, setuid, setgid, stuff which will be common
     amongst the unix MPMs.

  *) mpm_prefork: throw away all the alarm/timeout crud; and clean up the
     signal handling for the new world order.  [Dean Gaudet]

  *) Crude ap_thread_mutex abstraction so that we get the pthread stuff out
     of alloc.c for now.  [Dean Gaudet]

  *) Handle partial large writes correctly.  [Ben Laurie]

  *) Eliminate conn_rec's pointer to server. All it knows is the base server
     based on IP/port.  [Ben Laurie]

  *) Port a bunch of modules to the new module structure.
     ["Michael H. Voase" <mvoase@midcoast.com.au>]

  *) I/O layering and BUFF revamp.  See docs/buff.txt.  [Dean Gaudet]

  *) Basic restructuring to introduce the MPM concept; includes various
     changes to the module API... better described by
     docs/initial_blurb.txt.  [Dean Gaudet]

Changes with Apache pthreads

  *) New buff option added: BO_TIMEOUT. It describes the timeout for
     buff operations (generally over a network).
     [Dean Gaudet, Ryan Bloom, Manoj Kasichainula]

  *) Created http_accept abstraction. Added 4 new functions (not exported):
     init_accept(), begin_accepting_requests(), get_request(), 
     stop_accepting_requests() [Bill Stoddard]

  *) Fix to ap_rprintf call that allows mod_info to work properly.
     [James Morris <jmorris@intercode.com.au>]

  *) user and ap_auth_type fields were moved from connection_rec to 
     request_rec. [Ryan Bloom] 

  *) Removed the ap_block_alarms and ap_unblock_alarm calls.  These aren't
     needed in a threaded server.

  *) Initial pthread implementation from from Dean's apache-nspr code.
     [Bill Stoddard, Ryan Bloom]


Changes with Apache 1.3.9

  *) Remove bogus error message when a redirect doesn't set Location.
     Instead, use an empty string to avoid coredump if the error message
     was supposed to include a location.  [Roy Fielding]

  *) Don't allow configure to include mod_auth_digest unless it is
     explicitly requested, even if the user asked for all modules.
     [Roy Fielding]

  *) Translate module names to dll names for OS/2 so that they are no more
     than 8 characters long and have an extension of "dll" instead of "so".
     [Brian Havard]

  *) Print out pointer to Rule DEV_RANDOM when truerand lib not found.
     Fix test-compile check to check for randbyte instead of trand32.
     Use ap_base64encode_binary/decode instead of copy in mod_auth_digest.c
     and tweak to make Amaya happier.  [Ronald Tschalär]

  *) Ensure that the installed expat include files are world readable,
     just like the other header files.  [Martin Kraemer]

  *) Fixed generated AddModule adjustments in APACI's `configure' script
     in order to allow (new) modules like mod_vhost_alias to be handled
     correctly (which was touched by the adjustments for mod_alias).
     [Ralf S. Engelschall]

  *) For binary builds, add -R flag to apachectl to work around the lack of
     an absolute path to the ./libexec directory where the libhttp.ep file
     is needed for SHARED_CORE architectures.  [Randy Terbush]

  *) WIN32: Create the CGI script process as DETACHED.  This may solve the
     problem observed by some Win95/98 users where they get CGI script
     output sent to the console.  [Bill Stoddard]

  *) Fix (re)naming in the uuencode/decode section. The ap/ap_
     routines are now called ap_base64* and are 'plain' (i.e., no 
     pool access or anything clever). Inside util.c the routines acting
     like pstrdup are called ap_pbase64encode() and ap_pbase64decode().
     The oddly named ap_uuencode(), ap_uudecode() are kept around for
     now but deprecated.  [dirkx]

  *) Clean up the base64 and SHA1 additions and make sure they are
     represented in the ApacheCore.def, ApacheCoreOS2.def, and httpd.exp
     files.  [Roy Fielding]

  *) WIN32: Migrate to InstallShield 5.5 and provide a bit more error
     checking.  Allow compiling on VS 6.0.  [Randy Terbush]

  *) Fixed assumption of absolute paths in binbuild.sh.  [Tony Finch]

  *) Use TestCompile to search for the truerand library (rather than blindly
     assuming its existence). If it is not found, complain (but do not
     exit - yet).  [Martin Kraemer]

  *) We forgot to add the new exported function names to
     src/support/httpd.exp.  [Bill Stoddard, Randy Terbush]

  *) Add description of -T command-line option to usage().
     [Ralf S. Engelschall]

  *) For "some" platforms (notably, EBCDIC based ones), libos needs to be
     searched only AFTER libap has been searched, because libap needs
     some symbols from libos.  [Martin Kraemer]

  *) Fix conflict with original mod_digest related to the symbol of the
     module dispatch list (which has to be unique for DSO and follow the
     usual conventions for the installation procedure).
     [Ralf S. Engelschall]

  *) Add a dbm-library check for the "usual places" (-ldbm, -lndbm, -ldb)
     for other platforms as well.  [Martin Kraemer]

  *) Make ap_sha1.c compile for EBCDIC platforms: replace remaining LONG
     types by AP_LONG and replace reference to renamed variable 'ubuf'
     by 'buffer'.  [Martin Kraemer]

Changes with Apache 1.3.8 [not released]

  *) Flush the output buffer immediately after sending an error or redirect
     response, since the result may be needed by the client to abort a
     long data transfer or restart a series of pipelined requests.
     [Tom Vaughan <tvaughan@aventail.com>, Roy Fielding]

  *) PORT: Improved compilation and DSO support on Sequent DYNIX/ptx.
     [Ian Turner <iant@sequent.com>] PR#4735

  *) Local struct mmap in http_core.c conflicted with system structure
     name on DYNIX -- changed to mmap_rec.  [Roy Fielding] PR#4735

  *) Added updated mod_digest as modules/experimental/mod_auth_digest.
     [Ronald Tschalär <ronald@innovation.ch>]

  *) Fix a memory leak where the module counts were getting messed
     up across restarts.  [David Harris <dharris@drh.net>]

  *) CIDR addresses such as a.b.c.d/24 where d != 0 weren't handled
     properly in mod_access.
     ["Paul J. Reder" <rederpj@raleigh.ibm.com>] PR#4770

  *) RewriteLock/RewriteMap didn't work properly with virtual hosts.
     [Dmitry Khrustalev <dima@bog.msu.su>] PR#3874

  *) PORT: Support for compaq/tandem/com.
     [Michael Ottati <michael.ottati@compaq.com>, dirkx]

  *) Added SHA1 password encryption support to easy migration from 
     Netscape servers. See support/SHA1 for more information.
     Caused the separation of ap_md5.c into md5, sha1 and a general
     ap_checkpass.c with just a validate_passwd routine. Added a
     couple of flags to support/htpasswd. Some reuse of the to64()
     function; hence renamed to ap_to64().
     [Dirk-Willem van Gulik, Clinton Wong <clintdw@netcom.com>]

  *) Change for EBCDIC platforms (TPF and BS2000) to correctly deal
     with ASCII/EBCDIC conversions in "ident" query.
     [David McCreedy <McCreedy@us.ibm.com>]

  *) Get rid of redefinition warning on MAC_OS_X_SERVER platform.
     Change "Power Macintosh" to Power* so if uname prints "Power Book"
     we're still happy on Rhapsody platforms.  [Wilfredo Sanchez]

  *) Fix SIGSEGV on some systems because the Vary fix below included
     a call to table_do with a variable argument list that was not
     NULL terminated.  Replaced with better implementation. [Roy Fielding]

Changes with Apache 1.3.7 [not released]

  *) The "Vary" response header field is now sanitised right before
     the header is sent back to the client.  Multiple "Vary" fields
     are combined, and duplicate tokens (e.g., "Vary: host, host" or
     "Vary: host, negotiate, host, accept-language") are reduced to
     single instances.  This is a better solution than the force-no-vary
     one (which is still valid for clients that can't cope with Vary
     at all).  PR#3118 [Dean Gaudet, Roy Fielding, Ken Coar]

  *) Portability changes for BeOS. [David Reid abb37@dial.pipex.com]

  *) Link DSO's with "gcc -shared" instead of "ld -Bshareable" at 
     least on Linux and FreeBSD for now.  
     [Rasmus Lerdorf]

  *) Win32: More apache -k restart work. Restarts are now honored
     immediately and connections in the listen queue are -not- lost.
     This is made possible by the use of the WSADuplicateSocket()
     call.  The listeners are opened in the parent, duplicated, then
     the duplicates are passed to the child. The original listen sockets 
     are not closed by the parent across a restart, thus the listen queue 
     is preserved.
     [Bill Stoddard <stoddard@raleigh.ibm.com>]

  *) Fix handling of case when a client has sent "Expect: 100-continue"
     and we are going to respond with an error, but get stuck waiting to
     discard the body in the pointless hope of preserving the connection.
     [Roy Fielding, Joe Orton <jeo101@york.ac.uk>] PR#4499, PR#3806

  *) Fix 'configure' to work correctly with SysV-based versions of
     'tr' (consistent with Configure's use as well). [Jim Jagielski]

  *) apxs: Add "-S var=val" option which allows for override of CFG_*
     built-in values. Add "-e" option which works like -i but doesn't
     install the DSO; useful for editing httpd.conf with apxs. Fix
     editing code so that multiple invocations of apxs -a will not
     create duplicate LoadModule/AddModule entries; apxs can now be
     used to re- enable/disable a module.  [Wilfredo Sanchez]

  *) Win32: Update the server to use Winsock 2. Specifically, link with
     ws2_32.lib rather than wsock32.lib.  This gives us access to 
     WSADuplcateSocket() in addition to some other enhanced comm APIs.
     Win 95 users may need to update their TCP/IP stack to pick up
     Winsock 2. (See http://www.microsoft.com/windows95/downloads/)
     [Bill Stoddard stoddard@raleigh.ibm.com]

  *) Win32: Redirect CGI script stderr (script debug info) into the 
     error.log when CGI scripts fail. This makes Apache on Win32 
     behave more like Unix.      
     [Bill Stoddard stoddard@raleigh.ibm.com]

  *) Fixed `httpd' usage display: -D was missing.
     [Ralf S. Engelschall] PR#4614

  *) Fix `make r' test procedure in src/regex/: ap_isprint was not found.
     [Ralf S. Engelschall] PR#4561, PR#4562

  *) OS/2: Fix problem with accept lock semaphores where server would die with
     "OS2SEM: Error 105 getting accept lock. Exiting!" 
     [Brian Havard] PR#4505

  *) Add DSO support for DGUX 4.x using gcc. Tested on x86 platforms.
     [Randy Terbush <randy@covalent.net>]
 
  *) Add the new mass-vhost module (mod_vhost_alias.c) developed and
     used by Demon Internet, Ltd. [Tony Finch <fanf@demon.net>]

  *) Better GCC detection for DSO flags under Solaris 2 where the `cc' 
     command potentially _is_ GCC. [Ralf S. Engelschall]

  *) Fix apxs build issues on AIX 
     [Rasmus Lerdorf <rasmus@raleigh.ibm.com>]

  *) DocumentRoot Checking: Under previous versions, when Apache
     first started up, it used to do a stat of each DocumentRoot to
     see if it existed and was a directory. If not, then an error
     message was printed. THIS HAS BEEN DISABLED. If DocumentRoot
     does not exist, you will get error messages in error_log. If
     the '-t' command line option is used (to check the configuration)
     the check of DocumentRoot IS performed. An additional command
     line option, '-T', has been added if you want to avoid the
     DocumentRoot check even when checking the configuration.
     [Jim Jagielski]

  *) Win32: The query switch "apache -S" didn't exit after showing the
     vhost settings. That was inconsistent with the other query functions.
     [Bill Stoddard - Fixed by Martin on Unix in 1.3.4]

  *) Win32: Changed behaviour of apache -k restart. 
     Previously, the server would drain all connections in the stack's
     listen queue before honoring the restart. On a busy server, this
     could take hours.  Now, a restart is honored almost immediately. 
     All connections in Apache's queues are handled but connections in 
     the stack's listen queue are discarded. Restart triggered by 
     MaxRequestPerChild is unchanged.
     [Bill Stoddard <stoddard@raleigh.ibm.com>]

  *) Win32: Eliminated unnecessary call to wait_for_multiple_objects in
     the accept loop. Good for a 5% performance boost. Cleaned up 
     parent/child process management code. 
     [Bill Stoddard <stoddard@raleigh.ibm.com>]

  *) Added ceiling on file size for memory mapped files.
     [John Giannandrea <jg@meer.net>] PR#4122

  *) Fix ndbm.h include problems with brain-dead glibc >= 2.1 which 
     has ndbm.h in a non-standard db1/ subdir. PR#4431, PR#4528
     [Henri Gomez <gomez@slib.fr>, Ralf S. Engelschall] 

  *) Determine AP_BYTE_ORDER for ap_config_auto.h and already
     use this at least for Expat. [Ralf S. Engelschall]

  *) Allow .module files to specify libraries with Lib:.
     [Ben Laurie]

  *) Allow SetEnvIf[NoCase] to test environment variables as well
     as header fields and request attributes.  [Ken Coar]

  *) Fix mod_autoindex's handling of ScanHTMLTitles when file
     content-types are "text/html;parameters".  PR#4524  [Ken Coar]

  *) Remove "mxb" support from mod_negotiation -- it was a draft feature
     never accepted into any standard, and it opens up certain DoS
     attacks.  [Koen Holtman <Koen.Holtman@cern.ch>]

  *) TestCompile updated. We can now run programs and output the
     results during the Configure process. [ Jim Jagielski]

  *) The source is now quad (long long) aware as needed. Specifically,
     the Configure process determines the correct size of off_t and
     *void. When the OS/platform/compiler supports quads, ap_snprintf()
     provides for the 'q' format qualifier (if quads are not available,
     'q' is silently "demoted" to long). [Jim Jagielski]

  *) When the username or password fed to htpasswd is too long, include the
     size limit in the error message.  Also report illegal characters
     (currently only ':') in the username.  Add the size restrictions
     to the man page.  [Ken Coar]

  *) Fixed the configure --without-support option so it doesn't result in
     an infinite loop.  [Marc Slemko]

  *) Piped error logs could cause a segfault if an error occured
     during configuration after a restart.
     [Aidan Cully <aidan@panix.com>] PR#4456

  *) If a "Location" field was stored in r->err_headers_out rather
     than r->headers_out, redirect processing wouldn't find it and
     the server would core dump on ap_escape_html(NULL).  Check both
     tables and raise HTTP_INTERNAL_SERVER_ERROR with a log message
     if Location isn't set.  [Doug MacEachern, Ken Coar]

  *) Add RULE_EXPAT, the src/lib/ directory structure, and a modified copy
     of the Expat 1.0.2 distribution. [Greg Stein]

  *) Replace regexec() calls with calls to a new API stub function
     ap_regexec().  This solves problems with DSO modules which use the regex
     library. [Jens-Uwe Mager <jum@helios.de>, Ralf S. Engelschall]

  *) Add 'Request_Protocol' special keyword to mod_setenvif so that
     environment variables can be set according to the protocol version
     (e.g., HTTP/0.9 or HTTP/1.1) of the request.  [Ken Coar]

  *) Add DSO support for OpenStep (Mach 4.2) platform.
     [Ralf S. Engelschall, Rex Dieter <rdieter@math.unl.edu>] PR#3997

  *) Fix sed regex for generating ap_config_auto.h in src/Configure.
     [Jan Gallo <gallo@pvt.sk>] PR#3690, PR#4373
 
  *) Switch to /bin/sh5 in APACI on Ultrix and friends to avoid problems with
     their brain-dead /bin/sh. [Ralf S. Engelschall] PR#4372

  *) Better DSO flags recognition on NetBSD platforms using ELF.
     [Todd Vierling <tv@pobox.com>] PR#4310

  *) Always log months in english format for %t in mod_log_config.
     [Petr Lampa <lampa@fee.vutbr.cz>] PR#4366, 679

  *) Support for server-parsed and multiview-determined ReadmeName and
     HeaderName files in mod_autoindex. Removed the restriction on
     "/"s in ReadmeName and HeaderName directives since the *sub_req*
     routines will deal with the access issues. (It's now possible to
     have {site|group|project|customer|...} wide readmes and headers.)
     [Raymond S Brand <rsbx@rsbx.net>, Ken Coar] PR#1574, 3026, 3529,
     3569, 4256

  *) When stat() fails, don't assume anything about the contents of
     the struct stat.  [Ed Korthof <ed@bitmechanic.com>]

  *) It's OK for a semop to return EINTR, just loop around and try
     again.  [Dean Gaudet]

  *) Fix configuration engine re-entrant hangups, which solve a
     handful of problems seen with mod_perl <Perl> configuration sections
     [Salvador Ortiz Garcia <sog@msg.com.mx>]

  *) Mac OS and Mac OS X Server now use the appropriate custom layout
     by default when building with APACI; allow for platform-specific
     variable defaults in configure. [Wilfredo Sanchez]

  *) Do setgid() before initgroups() in http_main; some platforms
     zap the grouplist when setgid() is called.  This was fixed in
     suexec earlier, but the main httpd code missed the change.
     [Rob Saccoccio <robs@InfiniteTechnology.com>]  PR#2579

  *) Add recognition of .tgz as a gzipped tarchive.
     [Bertrand de Singly <bertrand.de-singly@polytechnique.fr>]  PR#2364

  *) mod_include's fsize/flastmod should allow only relative paths, just
     like "include file".  [Jaroslav Benkovsky <benkovsk@pha.pvt.cz>]

  *) OS/2: Add support for building loadable modules using DLLs.
     [Brian Havard]

  *) Add iconsdir, htdocsdir, and cgidir to config.layout.
     [Wilfredo Sanchez]

  *) Fix minor but annoying bug with the test for Configuration.tmpl
     being newer than Configuration so that it is less likely to fail
     when using APACI and shadow sources. [Wilfredo Sanchez]

  *) PORT: Add initial support for Mac OS (versions 10.0 and
     greater). Use Mac OS X Server layout for now. Clean up dyld code
     in unix/os.c, and don't install the dyld error handlers, which
     are no longer needed in Mac OS. [Wilfredo Sanchez]

  *) Rename Rhapsody layout to "Mac OS X Server". Change install
     locations to appropriate ones for user-built (as opposed to
     system) installs. [Wilfredo Sanchez]

  *) Modify mod_autoindex's handling of AddDescription so that the
     behaviour matches the documentation.  [Ken Coar] PR#1898, 3072.

  *) Add functionality to the install-bindist.sh script created by
     binbuild.sh to use tar when copying distribution files to the
     serverroot. This allows upgrading an existing installation
     without nesting the new distribution in the old.

     install-bindist.sh now detects the local perl5 path to install
     apxs and dbmmanage with proper path to perl interpreter.

     Add an install-binsupport target which copies the source files
     for apxs and dbmmanage to bindist to allow these scripts to
     be properly installed relative to the destination serverroot.
     [Randy Terbush, Covalent Technologies, randy@covalent.net]

  *) Fix intermittent SEGV in ap_proxy_cache_error() in
     src/modules/proxy_util.c where a NULL filepointer and
     temporary filename were closed and unlinked.
     [Graham Leggett <minfrin@sharp.fm>,
     Tim Costello <tjcostel@socs.uts.edu.au>] PR#3178

  *) Fix inconsistent error messages reported by mod_proxy.
     [Graham Leggett <minfrin@sharp.fm>]

  *) OS/2: Fix terminating CGIs that aren't compiled by EMX GCC when a 
     connection is aborted.  [Brian Havard]

  *) Force the LANG envariable to the known state of "C" so that we
     have assurance about how string manipulators (e.g., tr) will
     function.  [Ken Coar]  PR#1630

  *) Add a directive to allow customising of the tracking cookie name.
     [Ken Coar]  PR#2921, 4303

  *) Add "force-no-vary" envariable to allow servers to work around
     clients that choke on "Vary" fields in the response header.
     [Ken Coar, Dmitry Khrustalev <dima@zippy.machaon.ru>]  PR#4118

  *) Fixed a bug in mod_dir that causes a child process will infinitely
     recurse when it attemps to handle a request for a directory wnd the
     value of the DirectoryIndex directive is a single dot. Also likely
     to happen for anyother values of DirectoryIndex that will map back
     to the same directory. The handler now only considers regular files
     as being index candidates. No PR#s found.
     [Raymond S Brand <rsbx@rsbx.net>]

  *) Ease configuration debugging by making TestCompile fall back to
     using "make" if the $MAKE variable is unset [Martin Kraemer]

  *) Fixed the ServerSignature directive to work as documented.
     [Raymond S Brand <rsbx@rsbx.net>] PR#4248

  *) Add "opt" (SysV-style) layout to config.layout. [Raymond S Brand
     <rsbx@rsbx.net>]

  *) Add APACI --without-execstrip option which can be used to disable the
     stripping of executables on installation.  This is very important for DSO
     and debugging situations. [Ralf S. Engelschall]

  *) Add support for OS/2 (case insenstive filesystem, .exe suffix, etc)
     to APACI files and related scripts. 
     [Yitzchak Scott-Thoennes <sthoenna@efn.org>, Ralf S. Engelschall] PR#4269

  *) Add support for standalone mode in TPF
     [Joe Moenich <moenich@us.ibm.com>]

  *) Fix number of bytes copied by read_connection() in src/support/ab.c
     [Jim Cox <jc@superlink.net>] PR#4271

  *) Fix special RewriteCond "-s" pattern matching.
     [Bob Finch <bob@nas.com>]

  *) Fix value quoting in src/Configure script for ap_config_auto.h 
     [Paul Sutton <paul@awe.com>]

  *) Make sure RewriteLock can be used only in the global context, (i.e.
     outside of any <VirtualHost> sections) because it's a global facility of
     the rewrite engine. [Ralf S. Engelschall]

  *) Fix the ownership delegation for proxy directory under `make install'.
     [Ralf S. Engelschall]

  *) APACI would not correctly build suexec. [Maria Verina
     <mariav@icgeb.trieste.it>] PR#4260

  *) mod_mime_magic passed only the first 4k of a file to
     uncompress/gzip, but those tools sometimes do not produce
     any output unless a sufficient portion of the compressed
     file is input.  Change to pass the entire file -- but
     only read 4k of output.
     [Marcin Cieslak <saper@system.pl>] PR#4097

  *) "IndexOptions None" generated extra spaces at the end of each
     line.  [inkling@firstnethou.com] PR#3770

  *) The "100 Continue" response wasn't being sent after internal
     redirects. [Jose KAHAN <kahan@w3.org>] PR#3910, 3806, 3575

  *) When padding the name with spaces for display, mod_autoindex would
     count &, <, and > in their escaped width, messing up the display.
     [Dean Gaudet] PR#4075, 3758

  *) PORT: fixed a compilation problem on NEXT.
     [Jacques Distler <distler@golem.ph.utexas.edu>] PR#4130

  *) r->request_time wasn't being set properly in certain error conditions.
     [Dean Gaudet] PR#4156

  *) PORT: deal with UTS compiler error in http_protocol.c
     [Dave Dykstra <dwd@bell-labs.com>] PR#4189

  *) Add ap_vrprintf() function.  [John Tobey <jtobey@banta-im.com>] PR#4246

  *) Fix the mod_mime hash table to work properly with locales other
     than C.  [Dean Gaudet] PR#3427

  *) Fix a memory leak which is exacerbated by certain configurations.
     [Dean Gaudet] PR#4225

  *) Prevent clobbering saved IFS values in APACI. [Jim Jagielski]

  *) Fix buffer overflows in ap_uuencode and ap_uudecode pointed out
     by "Peter 'Luna' Altberg <peter@altberg.nu>" and PR#3422
     [Peter 'Luna' Altberg <peter@altberg.nu>, Ronald Tschalär]

  *) Make {Set,Unset,Pass}Env per-directory instead of per-server.
     [Ben Laurie]

  *) Correct an apparent typo: on the Windows and MPE platforms, the
     htpasswd utility was limiting passwords to only 8 characters.
     [Ken Coar]

  *) EBCDIC platforms: David submitted patches for two bugs in the
     MD5 digest port for EBCDIC machines:
     a) the htdigest utility overwrote the old contents of the digest file
     b) the Content-MD5 header value (ContentDigest directive) was wrong
     when the returned file was not converted from EBCDIC, but was a
     binary (e.g., image file) in the first place.
     [David McCreedy <mccreedy@us.ibm.com>]

  *) support/htpasswd now permits the password to be specified on the
     command line with the '-b' switch.  This is useful when passwords
     need to be maintained by scripts -- particularly in the Win32
     environment.  [Ken Coar]

  *) Win32: Win32 multiple services patch. Added capability to install and
     run multiple copies of apache as individual services.

     Example 1:
     apache -n apache1 -i -f c:/httpd.conf
        Installs apache as service 'apache1' and associates c:/httpd.conf
        with that service.
     net start apache1
        Starts apache1 service.
     net stop apache1
        Stops apache1 service

     Example 2:
     apache -n apache2 -i
        Installs apache as service 'apache2'. httpd.conf is located under
        the default server root (/apache/conf/httpd.conf).
     net start apache2
        Starts apache2 service.

     Example 3:
     apache -n apache3 -i -d c:/program files/apache
        Install apache as service 'apache3' and sets server root to
        c:/program files/apache.

     Example 4:
     apache -n apache2 -k restart
        Restart apache2 service 

     [Keith Wannamaker, Ken Parzygnat, Bill Stoddard]

  *) Correct the signed/unsigned character handling for the MD5 routines;
     mismatches were causing compilation problems with gcc -pedantic and
     in the TPF cross-compilation.  [Ken Coar]

  *) OS/2: Rework CGI handling to use spawn*() instead of fork/exec, achieving
     a roughly 5 fold speed up. [Brian Havard]

  *) proxy ftp: instead of using the hardwired string "text/plain" as
     a fallback type for files served by the ftp proxy, use the
     ap_default_type() function to determine the configured type.
     This allows for special configurations like
        <Directory proxy:ftp://some.host>
        DefaultType gargle/blurb
        </Directory>
     Additionally, add the Content-Encoding: header to FTP proxy replies
     when the encoding is defined (by the AddEncoding directive).
     Because it was missing, it was almost impossible to browse compressed
     files using the FTP proxy (works now perfectly in Communicator).
     The ftp proxy now also returns the Date: and Server: header lines (if not
     much else... This code is "somewhat" broken) like normal requests do.
     [Martin Kraemer]

  *) Be more smart in APACI's configure script when determining the UID/GID
     for User/Group directives and use the determined UID/GID to initialize
     the permissions on the proxycachedir.
     [Dirk-Willem van Gulik, Ralf S. Engelschall]

  *) Changed the forking-prior-to-cleanup in the proxy module to first
     check wether it actually needs to collect garbage. This reduces 
     the number of fork()s from one/request to just the odd one an hour.
     [Dirk-Willem van Gulik]

  *) Added proxy, auth and header support to src/support/ab.c. Added a
     README file to src/support/
     [Dirk-Willem van Gulik]

  *) Don't hard-code the path to AWK in --shadow bootstrapping Makefile.
     [Ralf S. Engelschall] PR#4050

  *) Add support for DSO module compilation on BSD/OS 3.x.
     [Randy Terbush, Covalent Technologies]

  *) Fix sed-substitutions in `make install': path elements like `httpd/conf'
     (for instance from an APACI configure --sysconfdir=/etc/httpd/conf
     option) were substituted with $(TARGET).conf, etc. Same for other strings
     with dots where the dot wasn't matched as plain text. 
     [Ralf S. Engelschall]

  *) PORT: Add support for FreeBSD 4.x [Ralf S. Engelschall]

  *) Fix verbose output of APACI configure (option -v) 
     [Martin Kraemer, Ralf S. Engelschall]

Changes with Apache 1.3.6

  *) Removed new PassAllEnv code due to DSO problems. [Lars Eilebrecht]

Changes with Apache 1.3.5 [not released]

  *) M_INVALID needed a value within the scope of METHODS so that unknown
     methods can be access controlled.  [Roy Fielding] PR#3821

  *) Added PassAllEnv; makes server's entire environment available
     to CGIs and SSIs executed within directive's scope.  [Ken Coar]

  *) ap_uuencode() always added two trailing '='s and encoding of
     8 bit characters on a machine with signed char may produced
     incorrect results. Additionally ap_uuencode() should now
     work correctly on EBCDIC platforms.
     [Ronald Tschalär <ronald@innovation.ch>] PR#3411

  *) WIN32: Binary installer now runs the configuration DLL before
     the reboot prompt (which is only given if MSVCRT.DLL system
     DLL is new or updated). This should avoid the configuration
     directory being empty after installation. [Paul Sutton]
     PR#3767, 3800, 3827, 3850, 3900, 3953, 3988

  *) WIN32: Binary installer now creates Start menu options to start
     and stop Apache as a console application and to uninstall
     the Apache service on NT. [Paul Sutton] PR#3741

  *) WIN32: Apache.exe now contains an icon. [Paul Sutton]

  *) PORT: Switch back to using fcntl() locking on Linux -- instabilities
     have been reported with flock() locking (probably related to kernel
     version).  [Dean Gaudet] PR#2723, 3531

  *) Using APACI, the main config file (usually httpd.conf) was
     not being adjusted as $(TARGET).conf. [Wilfredo Sanchez
     <wsanchez@apple.com>]

  *) PORT: AIX does not require the SHARED_CODE "hack"
     [Ryan Bloom <rbb@raleigh.ibm.com>]

  *) Set-Cookie headers were being doubled up for some CGIs by the O(n^2)
     avoidance code added in 1.3.3.
     [Dean Gaudet, Jeff Lewis <lewis@stanford.edu>] PR#3872

  *) ap_isxdigit was somehow neglected when adding the ap_isfoo() macros
     for 8-bit safeness.  [Dean Gaudet]

  *) PORT: Use -fPIC instead of -fpic on Solaris and SunOS for compiling DSOs
     because SPARCs have a small machine-specific maximum size for the Global
     Offset Table which is often exceeded when compiling one of the larger
     third-party modules with Apache. [Peter Urban <Peter.Urban@epfl.ch>] PR#3977

  *) Move the directive `ExtendedStatus' in httpd.conf-dist-win _after_ the
     DSO/DLL section because it's a directive from mod_status and isn't
     available before the DLL of mod_status is loaded.
     [Martin POESCHL <mpoeschl@gmx.net>] PR#3936

  *) SECURITY: Fix a bug in the calculation of the buffer size for the line 
     continuation facility in Apache's configuration files which could 
     lead to a buffer overflow situation.
     [Thomas Devanneaux <Thomas.Devanneaux@enst.fr>] PR#3617

  *) Make documentation and error messages of APACI's --activate-module=FILE 
     option more clear. [Jan Wolter <janc@wwnet.net>] PR#3995

  *) Fix the gcc version check (for enabling the `inline' facility) to 
     really support all future gcc versions >= 2.7 until we know more.
     [John Tobey <jtobey@banta-im.com>] PR#3983

  *) Let APACI's configure script correctly complain for unknown --enable-XXX
     and --disable-XXX options. [Ralf S. Engelschall] PR#3958

  *) Link the shared core bootstrap program (``Rule SHARED_CORE=yes'') also
     against libap.a and use its ap_snprintf() instead of sprintf() to avoid
     possible buffer overflows. [Ralf S. Engelschall]

  *) Remove no longer used non-API function ap_single_module_init().
     [Ralf S. Engelschall]

  *) Add Apple's Mac OS X Server Layout "Rhapsody" to config.layout.
     [Wilfredo Sanchez]

  *) Add cgidir, htdocsdir, iconsdir variables to Makefile.tmpl in order
     to make platform installations easier.  [Wilfredo Sanchez]

  *) In configure, do not append the target name to the directory path if
     the path already contains "apache".  [Ralf S. Engelschall]

  *) SIGPIPE is now ignored by the server core.  The request write routines
     (ap_rputc, ap_rputs, ap_rvputs, ap_rwrite, ap_rprintf, ap_rflush) now
     correctly check for output errors and mark the connection as aborted.
     Replaced many direct (unchecked) calls to ap_b* routines with the
     analogous ap_r* calls.  [Roy Fielding]

  *) Enhanced mod_rewrite's mapfile handling: The in-core cache for text and
     DBM format mapfiles now uses a 4-way hash table with LRU functionality.
     Furthermore map lookups for non-existent keys are now cached as well.
     Additionally "txt" maps are now parsed with simple string functions
     instead of using ap_pregcomp(). As a side effect a bug that prevented
     the usage of keys containing the "," character was fixed.
     The changes drastically improve the performance when large rewrite maps
     are in use.
     [Michael van Elst <mlelstv@serpens.swb.de>, Lars Eilebrecht] PR#3160

  *) Added ap_sub_req_method_uri() for doing a subrequest with a method
     other than GET, and const'd the definition of method in request_rec.
     [Greg Stein]

  *) Use proper pid_t type for saving PIDs in alloc.c.  [John Bley]

  *) Replaced use of WIN32 define with HAVE_DRIVE_LETTERS to indicate
     when the OS allows a DOS drive letter within pathnames.  [Brian Havard]

  *) Add %V to mod_log_config, this logs the hostname according to the
     UseCanonicalName setting (this is the pre-1.3.4 behaviour of
     %v).  Useful for mass vhosting.  [Tony Finch <dot@dotat.at>]

  *) Add support for \n and \t to mod_log_config, can be used to produce
     more reliable logs with multiline entries.  [Tony Finch <dot@dotat.at>]

  *) Fixed a few compiler nits.  [John Bley <jbb6@acpub.duke.edu>]

  *) Added informative error messages for failed munmap() and fseek() calls
     in http_core.c. [John Bley, Roy Fielding]

  *) Added some informative error messages for some failed malloc()
     calls. [John Bley <jbb6@acpub.duke.edu>, Jim Jagielski]

  *) OS/2 ap_os_canonical_filename()'s behaviour is improved: ap_assert()
     is removed. This allows <Directory proxy:*> directives to work and
     prevents invalid requests from killing the process.
     [Brian Havard <brianh@kheldar.apana.org.au>]

  *) Reorganised FAQ document.
     [Joshua Slive <slive@finance.commerce.ubc.ca>] PR#2497

  *) src/support/: The ApacheBench benchmark program was overhauled by
     David N. Welton: you can now have it generate an HTML TABLE, presumably
     for integration into other HTML sources. David updated the ab man page
     as well and added some missing descriptions. Thanks!
     [David N. Welton <davidw@prosa.it>]

  *) Win32: The filename validity checker now allows filenames containing
     characters in the range 0x80 to 0xff (for example accented characters).
     [Paul Sutton] PR#3890

  *) Added conditional logging based upon environment variables to
     mod_log_config.  mod_log_referer and mod_log_agent
     are now deprecated.  [Ken Coar]

  *) Allow apache acting as a proxy server to relay the real
     reason of a failure to a client rather than the "internal
     server error" it does currently. The general exposure mechanism
     can be triggered by any module by setting the "verbose-error-to"
     note to "*"; this allows more than just proxy errors to be exposed.
     [Cliff Skolnick, Roy Fielding, Martin Kraemer] Related to PR#3455, 4086

  *) Moved man pages for ab and apachectrl to section 8.
     [Wilfredo Sanchez, Roy Fielding]

  *) Added -S option to install.sh so that options can be passed to
     strip on some platforms. [Ralf S. Engelschall, Wilfredo Sanchez]

  *) Tweak modules Makefile generated by Configure so that it handles
     the test case of no modules being selected. [chaz@reliant.com]

  *) Added a <LimitExcept method ...> sectioning directive that allows
     the user to assign authentication control to any HTTP method that
     is *not* given in the argument list; i.e., the logical negation
     of the <Limit> directive.  This is particularly useful for controlling
     access on methods unknown to the Apache core, but perhaps known by
     some module or CGI script. [Roy Fielding, Tony Finch]

  *) Prevent apachectl from complaining if the PIDFILE exists but
     does not contain a process id, as might occur if the server is
     being rapidly restarted. [Wilfredo Sanchez]

  *) Win32: Add global symbols missing from ApacheCore.def. [Carl Olsen]

  *) Entity tag comparisons for If-Match and If-None-Match were not being
     performed correctly -- weak tags might cause false positives.  Also,
     strong comparison wasn't properly enforced in all cases.
     [Roy Fielding, Ken Coar, Dean Gaudet] PR#2065, 3657

  *) OS/2: Supply OS/2 error code instead of errno on semaphore errors.
     [Brian Havard]

  *) Work around a bug in Lynx regarding its sending "Negotiate: trans"
     even though it doesn't understand TCN.  [Koen Holtman, Roy Fielding]

  *) Added ap_size_list_item(), ap_get_list_item(), and ap_find_list_item()
     to util.c for parsing an HTTP header field value to extract the next
     list item, taking into account the possible presence of nested comments,
     quoted-pairs, and quoted-strings. ap_get_list_item() also removes
     insignificant whitespace and lowercases non-quoted tokens.
     [Roy Fielding] PR#2065

  *) proxy: The various calls to ap_proxyerror() can return HTTP/1.1 status
     code different from 500. This allows the proxy to, e.g., return
     "403 Forbidden" for ProxyBlock'ed URL's. [Martin Kraemer] Related to PR#3455

  *) Fix ordering of language variants for the case where the traditional
     negotiation algorithm is being used with multiple language variants
     and no Accept-Language. [James Treacy <treacy@debian.org>] PR#3299, 3688

  *) Do not round the TCN quality calculation to 5 decimal places,
     unlike RFC 2296, because the calculation might need 12 decimal places
     to get the right result.  [Roy Fielding]

  *) Remove unused code to disable transparent negotiation when
     negotiating on encoding only, as we now handle encoding too
     (though this is nonstandard for TCN), remove charset=ISO-8859-1
     fiddle from the fiddle-averse RVSA comparison, and fix bugs in
     some debugging statements within mod_negotiation. [Koen Holtman]

  *) Fixed a rare memory corruption possibility in mod_dir if the index
     file is negotiable and no acceptable variant can be found.
     [Dean Gaudet, Roy Fielding, Martin Kraemer]

  *) Win32: Add new config directive, ScriptInterpreterSource, to enable
     searching the Win32 registry for script interpreters.
     [Bill Stoddard]

  *) Win32: The compiled-in default filename for the error log is now
     error.log, which matches the default in the distributed httpd.conf.
     [Paul Sutton]

  *) Win32: Any error messages from -i or -u command line options are now
     displayed on the console output rather than sent to the error log.
     Also the "Running Apache..." message is not output unless Apache is
     going to serve requests. [Paul Sutton]

  *) Rework the MD5 authentication scheme to use FreeBSD's algorithm,
     and use a private significator ('$apr1$') to mark passwords as
     being smashed with our own algorithm.  Also abstract the password
     checking into a new ap_validate_password() routine.  [Ken Coar]

  *) Win32: The filename validity checker now allows "COM" but refuses 
     access to "COM1" through "COM4". This allows filenames such
     as "com.name" to be served. [Paul Sutton] PR#3769.

  *) BS2000: Adapt to the new ufork() system call interface which will
     make subtasking easier on the OSD/POSIX mainframe environment.
     [Martin Kraemer]

  *) Add a compatibility define for escape_uri() -> ap_escape_uri() to
     ap_compat.h. [David White <david@persimmon.com>] PR#3725

  *) Make NDBM file suffix determination for mod_rewrite more accurate, i.e.
     use `.db' instead of `.pag' not only for FreeBSD, but also when
     the NDBM library looks like Berkeley-DB based.
     [Ralf S. Engelschall] PR#3773

  *) Add ability to handle DES or MD5 authentication passwords.
     [Ryan Bloom <rbb@Raleigh.IBM.Com>]

  *) Fix O(n^2) memory consumption in mod_speling.  [Dean Gaudet]

  *) SECURITY: Avoid some buffer overflow problems when escaping
     quoted strings.  (This overflow was on the heap and we believe
     impossible to exploit.)  [Rick Perry <perry@ece.vill.edu>]

  *) Let src/Configure be aware of CFLAGS options starting with plus
     signs as it's the case for the HP/UX compiler.
     [Doug Yatcilla <yatcilda@umdnj.edu>] PR#3681

  *) Remove the hard-wire of TAR=tar (we now check for gtar and gnutar first)
     and check to see if the tar we wind up with supports '-h'.
     [Jim Jagielski] PR#3671

  *) A consistent and conservative style for all shell scripts has been
     implemented. Basically, all shell string tests use the traditional
     hack of 'if [ "x$var" != "x" ]' or 'if [ "x$var" = "xstring" ]'
     to protect against bare null variable strings (ie: wrapping both
     sides with double quotes and prepending 'x'). 'x' was chosen
     because it's more universal and hopefully easier for old shell
     prgrammers, as well as being easier to search for in 'vi' (/x\$) :)
     [Jim Jagielski]

  *) The status module now prints out both the main server generation as
     well as the generation of each process. Also, the vhost info is
     printed with '?notable'. [Jim Jagielski]

  *) Move src/main/md5c.c to src/ap/ap_md5c.c; it's httpd-neutral
     and this makes its functions available to things in src/support.
     [Ken Coar]

Changes with Apache 1.3.4

  *) Renamed macros status_drops_connection to ap_status_drops_connection
     and vestigial scan_script_header to ap_scan_script_header_err,
     mostly for aesthetic reasons. [Roy Fielding]

  *) The query switch "httpd -S" didn't exit after showing the
     vhost settings. That was inconsistent with the other query functions.
     [Martin Kraemer]

  *) Moved the MODULE_MAGIC_COOKIE from before the versions and
     filename to the end of the STANDARD_MODULE_STUFF.  Its
     presence at the beginning prevented reporting of the filename
     for modules compiled before 1 January 1999.  [Ken Coar]

  *) SECURITY: ap_os_is_filename_valid() has been added to Win32
     to detect and prevent access to special DOS device file names.
     [Paul Sutton, Ken Parzygnat]
     
  *) WIN32: Created new makefiles Makefile_win32.txt (normal build)
     and Makefile_win32_debug.txt (debug build) that work on Win95.
     Run each of the following from the src directory:
        nmake /f Makefile_win32.txt           # compiles normal build
        nmake /f Makefile_win32.txt install   # compiles and installs
        nmake /f Makefile_win32.txt clean     # removes compiled junk
        nmake /f Makefile_win32_debug.txt     # compiles debug build
        nmake /f Makefile_win32_debug.txt install
        nmake /f Makefile_win32_debug.txt clean
     [Roy Fielding]

  *) Added binbuild.sh and findprg.sh helpers to make it easier for us
     to build binary distributions. [Lars Eilebrecht]

  *) IndexOptions SuppressColumnSorting only turned off making
     the column headers anchors; you could still change the display
     order by manually adding a '?N=A' or similar query string to the
     URL.  Now SuppressColumnSorting locks in the sort order so
     it can't be overridden this way.  [Ken Coar]

  *) Added IndexOrderDefault directive to supply a default sort order
     for FancyIndexed directory listings.  [Ken Coar] PR#1699

  *) Change the ap_assert macro to a variant that works on all platforms.
     [Richard Prinz <richard.prinz@cso.net>] PR#2575

  *) Make sure under ELF-based NetBSD (now) and OpenBSD (future) we don't
     search for an underscore on dlsym() (as it's already the case
     for FreeBSD 3.0). [Todd Vierling <tv@pobox.com>] PR#2462
  
  *) Small fix for mod_env.html: The module was documented as to be _not_
     compiled into Apache per default, although it _IS_ compiled into 
     Apache per default. [Sim Harbert <sim@mindspring.com>] PR#3572

  *) Instead of fixing a bug in the generation procedure for config.status (a
     backslash was missing) we remove the bug together with it's complete
     context because the special cases of the past can now no longer occur
     because of the recent magic for the --with-layout default.
     [Ralf S. Engelschall] PR#3590
 
  *) Make top-level Makefile aware of a parallel build procedures (make -j) by
     making sure the src/support/ tools are _forced_ to be build last (they
     depend on other libraries).
     [Markus Theissinger <markus.theissinger@gmx.de>]

  *) Fix installation procedure: Now that os-inline.c is actually used (a
     recently fixed bug prevented this) we need to also install os-include.c
     in addition to os.h into the PREFIX/include/ location or building of
     module DSOs with APXS fails. [Ralf S. Engelschall] PR#3527

  *) Added MODULE_MAGIC_COOKIE as the first field in a module structure to
     allow us to distinguish between a garbled DSO (or even a file which isn't
     an Apache module DSO at all) and a DSO which doesn't match the current
     Apache API. [Ralf S. Engelschall] PR#3152
 
  *) Two minor enhancements to mod_rewrite: First RewriteRule now also
     supports the ``nocase|NC'' flag (as RewriteCond already does for ages) to
     match case insensitive (this especially avoids nasty patterns like
     `[tT][eE][sS][tT]'). Second two additional internal map functions
     `escape' and `unescape' were added which can be used to escape/unescape
     to/from hex-encodings in URLs parts (this is especially useful in
     combination with map lookups). 
     [Magnus Bodin, Ian Kallen, Ralf S. Engelschall]

  *) Renamed the macro escape_uri() to ap_escape_uri() which was
     forgotten (because it was a macro) in the symbol renaming process.
     [Ralf S. Engelschall]

  *) Fix some inconsistencies related to the scopes of directives. The only
     user visible change is that the directives `UseCanonicalName' and
     `ContentDigest' now use the (more correct) `Options' scope instead of
     (less correct) `AuthConfig' scope.  [Ralf S. Engelschall]

  *) Using DSO, the Server token was being mangled. Specifically, the
     module's token was being added first before the Apache token. This
     has been fixed. [Jim Jagielski]

  *) Major overhaul of mod_negotiation.c, part 2.
     - properly handle "identity" within Accept-Encoding.
     - allow encoded variants in RVSA negotiation and let them appear in
       the Alternates field using the non-standard "encoding" tag-list.
     - fixed both negotiation algorithms so that an explicitly accepted
       encoding is preferred over no encoding if "identity" is not
       included within Accept-Encoding.
     - added ap_array_pstrcat() to alloc.c for efficient concatenation
       of large substring sequences.
     - replaced O(n^2) memory hogs in mod_negotiation with ap_array_pstrcat.
     [Roy Fielding]

  *) Major overhaul of mod_negotiation.c, part 1.
     - cleanups to mod_negotiation comments and code structure
     - made compliant with HTTP/1.1 proposed standard (rfc2068) and added
       support for everything in the upcoming HTTP/1.1
       revision (draft-ietf-http-v11-spec-rev-06.txt).
         - language tag matching also handles tags with more than 2
           levels like x-y-z
         - empty Accept, Accept-Language, Accept-Charset headers are
           processed correctly; previously an empty header would make all
           values acceptable instead of unacceptable.
         - allowed for q values in Accept-Encoding
     - added support for transparent content negotiation (rfc2295 and
       rfc2296) (though we do not implement all features in these drafts,
       e.g. no feature negotiation).  Removed old experimental version.
     - implemented 'structured entity tags' for better cache correctness
       (structured entity tags ensure that caches which can deal with Vary
       will (eventually) be updated if the set of variants on the server
       is changed)
         - this involved adding a vlist_validator element to request_rec
         - this involved adding the ap_make_etag() function to the global API
     - modified guessing of charsets used by Apache negotiation algorithm 
       to guess 'no charset' if the variant is not a text/* type
     - added code to sort multiviews variants into a canonical order so that
       negotiation results are consistent across backup/restores and mirrors
     - removed possibility of a type map file resolving to another type map
       file as its best variant
     [Koen Holtman, Roy Fielding, Lars Eilebrecht] PR#3451, 3299, 1987

  *) RFC2396 allows the syntax http://host:/path (with no port number)
     but the proxy disallowed it (ap_proxy_canon_netloc()).
     [David Kristol <dmk@bell-labs.com>] PR#3530

  *) When modules update/modify the file name in the configfile_t structure,
     syntax errors will report the updated name, not the original one.
     [Fabien Coelho <coelho@cri.ensmp.fr>] PR#3573

  *) Correct some filename case assumptions from WIN32 to
     CASE_BLIND_FILESYSTEM.  [Brian Havard <brianh@kheldar.apana.org.au>]

  *) For %v log ServerName regardless of the UseCanonicalName
     setting (similarly for %p).  [Dean Gaudet]

  *) Configure was initializing the variables $OSDIR, $INCDIR and $SHELL
     rather late (too late for some invocations of TestCompile).
     This improves the make environment available to TestCompile and
     the *.module scripts. [Martin Kraemer]

  *) The hashbang emulation code in ap_execve.c would interpret
     #!/hashbang/scripts correctly, but failed to fall back to a
     standard shell for scripts which did NOT start with #!
     Now SHELL_PATH is started in these cases. [Martin Kraemer]

  *) PORT: Added the Cyberguard V2 port [Richard Stagg <stagg@lentil.org>]
     PR#3336

  *) Update APXS manual page: some -q option arguments were missing
     and another was incorrect. [Mark Anderson <mda@discerning.com>] PR#3553

  *) Cleanup the command line options: `-?' was documented to show
     the usage list but does it with an error because `?' is not a valid
     command. OTOH a lot of users expect `-h' to print such a usage list and
     instead are annoyed for ages by our huge unreadable list of directives.
     So we now changed the command line options this way:
     1. `-L' => `-R' 
        Intent: we need `-L' to be free, and `-R' for the DSO run-time path is
        very similar to the popular linker option.
     2. `-h' => `-L'
        Intent: while -l gives the small list of modules, -L now gives the
        large list of directives implemented by these modules.  This is also
        consistent with -v (short version info) and -V (large version info).
     3. `-?' => `-h' 
        Intent: it's now the expected option ;-)
     The manual page was adjusted accordingly. 
     [Ralf S. Engelschall] PR#2714

  *) Fixed problem of fclose() on an unopened file in suexec if LOG_EXEC
     wasn't defined.  [Rick Franchuk <rickf@transpect.net>]

  *) Removed recently introduced bugs and disfigurements in APACI:
     o fixed argument line processing: using $args was broken: It was not
       initialized and using args="$args $apc_option" and even args="$args
       \"$apc_option\"" fails in the second processing round for any arguments
       containing whitespaces. The only correct way is to use the construct
       "$@" (but not possible here) or iterate _both_ times over the implicit
       argument line (no argument to for-loop) which is what we now use.
     o make --with-layout=Apache the default without creating
       redundancy (copying the --with-layout block in the argument parsing
       loop).  We achieve this by using the "$@" construct together with the
       `set' command to prepend --with-layout=Apache to the command line in
       case --with-layout is not used.
     o fixed auto-suffix handling now that config.layout exists.
       Paths which are auto-suffixed are marked with a trailing plus sign in
       config.layout and every path now can be marked this way (not only the
       four paths for which we do it currently).  Additionally the suffix is
       no longer a static one. Instead it's now `/<target>' where <target> is
       the argument of the --target option or per default `httpd'.
     o allow also tabs (and only spaces) where we match whitespaces
     o various fixes and cleanups related to used shell coding style
     o made Jim happy by replacing `Written by' with `Initially written by' ;-)
     o trimmed output of --help to fit into 80 columns
     [Ralf S. Engelschall]

  *) Added two new core API functions, ap_single_module_configure() and
     ap_single_module_init(), which are now used by mod_so to configure a module
     after loading. [Ralf S. Engelschall]

  *) PORT: Add defines for USE_FLOCK_SERIALIZED_ACCEPT and
     SINGLE_LISTEN_UNSERIALIZED_ACCEPT to NetBSD/OpenBSD section
     of ap_config.h to allow serialized accept for multiport listens.
     [Roy Fielding, Curt Sampson] PR#3120

  *) PORT: Fixed a misplaced #endif for NetBSD/OpenBSD section
     of ap_config.h that would skip several defines if DEFAULT_GROUP
     was overridden. [Roy Fielding]

  *) PORT: The I86 version of DGUX has support for strncasecmp and 
     strcasecmp, so allow it in ap_config.h. [Amiel Lee Yee] PR#3247

  *) Fix ordering of definitions in ap_config.h so that ap_inline is
     defined before it might be used. [Victor Khimenko]

  *) PORT: Add Dynamic Shared Object (DSO) support for BSDI (v4.0).
     [Tom Serkowski <tks@bsdi.com>] PR#3453

  *) Make generation of src/Configuration.apaci more robust: It failed to
     differenciate between modules when one module name was a postfix of
     another (e.g. cgi vs. fastcgi). We now check for mod_XXX, libXXX and even
     just XXX (think about totally non-standard names like "apache_ssl", too).
     [Ralf S. Engelschall] PR#3380

  *) In src/Configure remove the SERVER_SUBVERSION support (already deprecated
     since 1.3b7) and make whitespace handling more robust (it failed horrible
     when whitespaces were present in the arguments of -D options).
     [Ralf S. Engelschall] PR#3240

  *) Add APACI --shadow=DIR variant (in addition to --shadow). This now first
     creates an external package shadow tree in DIR before the local build
     shadow tree is generated under DIR. This way one can have the extracted
     Apache distribution tree read-only on NFS or CDROM and still build Apache
     from these sources. An automatically triggered VPATH-like mechanism is
     provided through the TOP variable, too.
     [Ralf S. Engelschall, Wilfredo Sanchez <wsanchez@apple.com>]

  *) Fix negotiation so that a Vary response header is correctly 
     generated when, for a particular dimension, variants only vary
     in having or not having a value for that dimension. [Paul Sutton]

  *) Fix negotiation so that we prefer an encoded variant over an
     unencoded variant if the user-agent explicitly says it can
     accept that encoding. Previously we always preferred the unencoded
     variant.
     [Paul Ausbeck <paula@alumni.cse.ucsc.edu>, Paul Sutton] PR#3447
 
  *) Fix APXS tool: query variables LIBS_SHLIB and TARGET were not recognized
     and the usage page was inconsistent with the functionality and manpage.
     [Ralf S. Engelschall]

  *) Allow special options -Wc,xxx and -Wl,xxx on APXS compile/link command.
     They can occur multiple times and their arguments (`xxx') are passed AS
     IS to the compiler/linker command.  [Ralf S. Engelschall]

  *) Fixed possible (but harmless in practice) bug in the DBM lookup
     procedure of mod_rewrite: very long keys were truncated.
     [Ralf S. Engelschall]

  *) Added a generic --with-layout=[FILE:]ID option. ID here is a layout
     identifier, currently "Apache" and "GNU" are pre-defined in the file
     config.layout.  Custom layouts are possible by using FILE:ID as the
     argument where the layout ID is taken from FILE.

     The config.layout file consists of <Layout ID>..</Layout> sections
     where inside those sections "path_variable: path_value" pairs can be
     specified. These lines are converted to path_variable='path_value'.

  *) Add a DefaultLanguage directive so that files missing a language
     extension (e.g., .fr, .de) can be labelled as being some other
     default language. DefaultLanguage can appear in <Directory> and 
     <Files> containers as well as .htaccess files.  [Paul Sutton]
     PR#1180

  *) Fix TARGET configuration when configuring and installing using
     APACI configure. TARGET now defines the basename of the configuration
     file, startup script, manual page, etc. log_error_core() now reports
     the server binary name given by argv[0]. TARGET can now also be defined
     with --target=TARGET parameter passed to APACI configure.
     [Ralf Engelschall, Randy Terbush]

  *) mod_include.c:handle_perl() now properly tests for OPT_INCNOEXEC
     rather than OPT_INCLUDES [Rainer Schoepf <schoepf@uni-mainz.de>]

  *) ap_md5_binary() was using sprintf() rather than a table lookup
     to convert binary bytes to hex digits.
     [Ronald Tschalär <ronald@innovation.ch>] PR#3409

  *) Fix SEGV in TCN negotiation if no variants are acceptable.
     [Martin Plechsmid <plechsmi@karlin.mff.cuni.cz>] PR#1987

  *) API: ap_exists_config_define() function is now "public" [Doug MacEachern]

  *) Fix documentation of `Action' directive: It can activate a CGI script
     when either a handler or a MIME content type is triggered by the request.
     [Andrew Pimlott <pimlott@math.harvard.edu>] PR#3340

  *) Document the `add' command of `dbmmanage' in `dbmmanage.1' manpage.
     [David MacKenzie <djm@uu.net>] PR#3394

  *) Ignore a "ErrorDocument 401" directive with a full URL and write a
     notice to the error log. It is not possible to send a 401 response
     and a redirect at the same time.  [Lars Eilebrecht]

  *) Fallback to native compilers for IRIX-32 platform. It seems that
     a gcc 2.8.1 compiled apache is logging client addresses with all
     bits set (255.255.255.255). This is the second such problem caused
     by gcc 2.8.1 compiler. The first being broken semaphore locking.
     [Randy Terbush]

  *) Updated mime.types to reflect current Internet media types
     and include a URL to the registry.
     [Manoj Kasichainula, Roy Fielding] PR#2380, 2286, 2246

  *) SECURITY: Do a more complete check in mod_include to avoid 
     an infinite loop of recursive SSI includes.  [Marc Slemko] PR#3323

  *) Add APACI --suexec-docroot and --suexec-logfile options which can be
     used to set the document root directory (DOC_ROOT) and the suexec
     logfile (LOG_EXEC), respectively. Additionally the --layout option
     was changed to show more information about the suEXEC setup.
     [Lars Eilebrecht] PR#3316, 3357, 3361

  *) Added the last two WebDAV status codes of 424 (Failed Dependency)
     and 507 (Insufficient Storage) for use by third-party modules.
     [Roy Fielding]

  *) Enabled all of the WebDAV method names for use by third-party
     modules, Limit, and Script directives.  That includes PATCH,
     PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, LOCK, and UNLOCK.
     Improved mod_actions.c so that it can use any of the methods
     defined in httpd.h.  Added ap_method_number_of(method) for
     getting the internal method number.  [Roy Fielding]

  *) PORT: Add a port to the TPF OS. [Joe Moenich <moenich@us.ibm.com> and
     others at IBM]

  *) Fix problems with handling of UNC names (e.g., \\host\path)
     on Win32.  [Ken Parzygnat <kparz@us.ibm.com>]

  *) Rework os_canonical_*() on Win32 so it's simpler, more
     robust, and works.  [Ken Parzygnat <kparz@us.ibm.com>]
     PR#2555, 2915, 3064, 3232

  *) Work around incomplete implementation of strftime on Win32.
     [Manoj Kasichainula, Ken Parzygnat <kparz@us.ibm.com>]

  *) Move a typedef to fix compile problems on Linux with 1.x kernels.
     [Manoj Kasichainula] PR#3177

  *) PORT: Add a port to the Concurrent PowerMAX OS. [Tom Horsley
     <Tom.Horsley@mail.ccur.com>]

  *) WIN32: Log more explicit error messages if spawning an interpreted 
     script failed, including the command line used to attempt to execute 
     the interpreter and the Win32 error code returned.  [Marc Slemko]

  *) Disable sending of error-notes on a 500 (Internal Server Error) response
     since it often includes file path info.  Enable sending of error-notes
     on a 501 (Method Not Implemented).  [Roy Fielding] PR#3173

  *) http_config.c would respond with 501 (Method Not Implemented) if a
     content type handler was specified but could not be found, which
     should have been a 500 response.  Likewise, mod_proxy.c would responsd
     with a 501 if the URI scheme is unrecognized instead of the correct
     response of 403 (Forbidden).  [Roy Fielding]

  *) SECURITY: Eliminate DoS attack when a bad URI path contains what
     looks like a printf format escape.  [Marc Slemko, Studenten Net Twente]

  *) Fix in mod_autoindex: for files where the last modified time stamp was
     unavailable, an empty string was printed which was 2 bytes short.
     The size and description columns were therefore not aligned correctly.
     [Martin Kraemer] (no PR#)

  *) Update BS2000 OS code to work with recent versions. Starting with
     release A17, the child fork() must be replaced by a _rfork().
     (BS2000 only) [Martin Kraemer]

  *) Add the actual server_rec structure of the specific Vhost to the
     scoreboard file and avoid a string copy (as well as allow some
     further future enhancements). [Harrie Hazewinkel
     <harrie.hazewinkel@jrc.it>]

  *) Add APACI --permute-module=foo:bar option which can be used to
     on-the-fly/batch permute the order of two modules (mod_foo and mod_bar)
     in the Configuration[.apaci] file. Two special and important variants are
     supported for the option argument: first BEGIN:foo which permutes module
     mod_foo with the begin of the module list, i.e. it `moves' the module to
     the begin of the list (gives it lowest priority).  And second foo:END
     which permutes mod_foo with the end of the module list, i.e. it `moves'
     the module to the end of the list (gives it highest priority). 
     [Ralf S. Engelschall]

  *) Fix problem with 'apache -k shutdown' and startup event
     synchronisation (Win32).  [Ken Parzygnat <kparz@raleigh.ibm.com>]
     PR#3255

  *) The config parser wasn't correctly noticing a missing '>'
     on container start lines (e.g., it wouldn't spot
     "<Directory /" as a syntax error).  [Ryan Bloom <rbbloom@us.ibm.com>]
     PR#3279

  *) Add a 'RemoveHandler' directive which will selectively remove
     all handler associations for the specified file extensions.
     [Ryan Bloom <rbbloom@us.ibm.com>] PR#1799.

  *) Properly handle & allow "nul" and ".*/null" in AccessConfig and
     ResourceConfig directives on Win32.  Also add a note to the effect
     of 'useless User directive ignored on Win32' to the errorlog if
     a User directive is encountered on Win32.
     [Ken Parzygnat <kparz@raleigh.ibm.com>] PR#2078, 2303.

  *) Fix multiple whitespace handling in imagemaps for mod_imap which was
     broken since Apache 1.3.1 where we took out compressing of multiple
     spaces in ap_cfg_getline().
     [Ivan Richwalski <ivan@seppuku.net>] PR#3249

  *) Fix Berkeley-DB/2.x support in mod_auth_db: The data structures were not
     initialized correctly and the db_open() call used an invalid mode
     parameter. [Ron Klatchko <ron@ckm.ucsf.edu>] PR#3171

  *) PORT: DSO support for UnixWare 7
     [Ralf S. Engelschall, Ron Record <rr@sco.com>]

  *) Merge the contents of the {srm,access}.conf-dist* files into the
     httpd.conf-dist* files.  The srm and access files now contain
     only comments, and httpd.conf has all the combined contents in
     a rational order.  [Ken Coar]

  *) PORT: DSO/ELF support for FreeBSD 3.0.
     [Ralf S. Engelschall, Dirk Froemberg <ibex@physik.TU-Berlin.DE>]
  
  *) Add a "default-handler" handler that calls the default_hander()
     function which is normally called for static content.  This allows
     you to override a specific handler.  [Marc Slemko]

  *) Further simplify checking for absolute paths by replacing an
     hard-coded syntax check with a call to a routine we already created to
     do this.  [Ken Parzygnat <kparz@raleigh.ibm.com>] PR#2976, 3074

  *) Log an error if we encounter a malformed "require" directive 
     in mod_auth if we know that we know that no other module can
     deal with it.  [Marc Slemko]

  *) Remove ap_private_extern method of hiding conflicting symbols
     on the NEXT platform because it is not correct for all versions,
     and the versions for which it is correct are unknown.
     [Wilfredo Sanchez <wsanchez@apple.com>]

  *) Fix inheritance of IndexOptions NameWidth and remove unintended
     restriction on +NameWidth, +IconHeight, and +IconWidth.  [Ken Coar]

  *) Fix per-directory config merging for cases in which a 500 error
     is encountered in an .htaccess file somewhere down the tree.
     [Ken Coar]  PR#2409

  *) Minor performance improvement to ap_escape_html(). [Roy Fielding]

  *) Fixed a segmentation violation in mod_proxy when a response is
     non-cachable.  [Roy Fielding, traced by Doug Bloebaum]. PR#2950, 3056

Changes with Apache 1.3.3

  *) Added a complete implementation of the Expect header field as
     specified in rev-05 of HTTP/1.1.  Disabled the 100 Continue
     response when we already know the final status, which is mighty
     useful for PUT responses that result in 302 or 401. [Roy Fielding]

  *) Remove extra trailing whitespace from the getline results as part
     of the protocol processing, which is extra nice because it works
     between continuation lines, is almost no cost in the normal case
     of no extra whitespace, and saves memory. [Roy Fielding]

  *) Added new HTTP status codes and default response bodies from the
     revised HTTP/1.1 (307, 416, 417), WebDAV (102, 207, 422, 423), and 
     HTTP Extension Framework (510) specifications.  Did not add the
     WebDAV 424 and 425 codes because they are bogus.  We don't use any
     of these codes yet, but they are now available to 3rd-party modules.
     [Roy Fielding]

  *) Fix a possible race condition between timed-out requests and the
     ap_bhalfduplex select that might result in an infinite loop on
     platforms that do not validate the descriptor. [Roy Fielding]

  *) WIN32: Add "-k shutdown" and "-k restart" options to signal a
     running Apache server [Paul Sutton]

  *) Fix mod_autoindex bug where directories got a size of "0k" instead
     of "-".  [Martin Plechsmid <plechsmi@karlin.mff.cuni.cz>, Marc Slemko]
     PR#3130

  *) PORT: DRS 6000 machine. [Paul Debleecker <pdebleecker@jetair.be>]

  *) Add the server signature text (from the core ServerSignature directive)
     to the list of envariables available to scripts, SSI, and the like.
     [Ken Coar]

  *) PORT: Fix sys/resource.h handling for SCO 3.x platform.
     [M. Laak <maert@proinv.ee>] PR#3108
 
  *) Fallback from sysconf-based to plain HZ-based `ticks per second'
     calculation in mod_status for all systems which don't have POSIX
     sysconf() (like UTS 2.1) and not only for the NEXT platform.
     [Dave Dykstra <dwd@bell-labs.com>] PR#3055

  *) Fix `require ...' directive parsing in mod_auth, mod_auth_dbm and
     mod_auth_db by using ap_getword_white() (which uses ap_isspace()) 
     instead of ap_getword(..., ' ') (which parses only according to spaces 
     but not tabs).  [James Morris <jmorris@intercode.com.au>, 
     Ralf S. Engelschall] PR#3105

  *) Fix the SERVER_NAME variable under sub-request situations (where
     `UseCanonicalName off' is used) like CGI's called from SSI pages or
     RewriteCond variables by adopting r->hostname to sub-requests.
     [James Grinter <jrg@blodwen.demon.co.uk>] PR#3111

  *) Fix stderr redirection under syslog-based error logging situation.
     [Youichirou Koga <y-koga@jp.FreeBSD.org>] PR#3095

  *) Document `ErrorLog syslog:facility' variant of error logging.
     [Youichirou Koga <y-koga@jp.FreeBSD.org>] PR#3096

  *) Fix http://localhost/ hints in top-level INSTALL document.
     [Rob Jenson <robjen@spotch.com>, Ralf S. Engelschall] PR#3088

  *) Quote paths in default configuration files.  [Wilfredo Sanchez]

  *) PORT: Remove extra HAVE_SYS_RESOURCE_H define for RHAPSODY since
     it is now taken care of properly by the header file tests.
     [Wilfredo Sanchez <wsanchez@apple.com>]

  *) Fix problem with scripts and filehandle inheritance on Win32.
     [Ken Parzygnat <kparz@raleigh.ibm.com>]  PR#2884, 2910

  *) Win32 name canonicalisation could end up using the server's
     working directory to fill in some blanks.  [Ken Parzygnat
     <kparz@raleigh.ibm.com>] PR#3001

  *) Correct invalid assumption by ap_sub_req_lookup_file() that all
     absolute paths begin with "/" -- because they don't on Win32.
     [Ken Parzygnat <kparz@raleigh.ibm.com>] PR#2976, 3074

  *) Add [REDIRECT_]VARIANTS environment variable to mod_speling
     so that ErrorDocument 300 processors can reformat the list
     if desired.  [Ken Coar] PR#2859

  *) Add +/- incremental prefixes to IndexOptions keywords, and
     enable merging of multiple IndexOptions directives.  [Ken Coar]

  *) PORT: Allow GuessOS to recognize Unixware 7.0.1 [Steve Cameron
     <steve.cameron@compaq.com>]

  *) Reconstructed the loop through multiple htaccess file names so
     that missing files are not confused with unreadable files.
     [Roy Fielding]

  *) The ap_pfopen and ap_pfdopen routines were failing to protect the
     errno on an error, which leads to one error being mistaken for
     another when reading non-existent .htaccess files.
     [Jim Jagielski]

  *) OS/2: The new header tests get things right, need to update
     ap_config.h.  [Brian Havard]

  *) The Perl %ENV hash will now be setup by default when using the
     mod_include `perl' command [Doug MacEachern]

  *) PORT: Add Pyramid DC/OSx support to configuration mechanism.
     [Earle Ake <akee@wpdiss1.wpafb.af.mil>]

  *) PORT: Fix sys/resource.h handling for Amdahl's UTS 2.1
     [Dave Dykstra <dwd@bell-labs.com>] PR#3054

  *) Correct comment in mod_log_config.c about its internals.
     [Elf Sternberg <elf@halcyon.com>]

  *) Avoid possible line overflow in Configure: Use an awkfile to
     handle the creation of modules.c [Jim Jagielski]

Changes with Apache 1.3.2

  *) Fix bug in ap_remove_module(), which caused problems for dso's 
     who were the top_module.  [Doug MacEachern]

  *) Add support for Berkeley-DB/2.x (in addition to Berkeley-DB/1.x) to
     mod_auth_db to both be friendly to users who wants to use this version
     and to avoid problems under platforms where only version 2.x is present.
     [Dan Jacobowitz <drow@false.org>, Ralf S. Engelschall]

  *) When using ap_log_rerror(), make the error message available to the
     *ERROR_NOTES envariables by default.  [Ken Coar]

  *) BS2000 platform only: get rid of the nasty BS2000AuthFile.
     You now must define a BS2000Account name for the server User.
     This has fewer security implications than the old approach.
     [Martin Kraemer]

  *) Fix SHARED_CORE feature for HPUX platform: We now use extension `.sl'
     instead of `.so' and `SHLIB_PATH' instead of `LD_LIBRARY_PATH' on this
     platform to make the braindead HPUX linker happy. Notice, for the module
     DSOs we don't have to use this, because these are loaded manually (and
     not via HPUX' dld). [Ralf S. Engelschall] PR#2905, PR#2968

  *) Remove 64 thread limit on Win32.
     [Bill Stoddard <stoddard@raleigh.ibm.com>]

  *) Remove redundant substitutions in top-level Makefile.tmpl.
     [Ralf S. Engelschall]

  *) Fix APACI's `Group' configuration adjustment - especially for Linux
     platforms where `nogroup' exists in /etc/group. [Ralf S. Engelschall]
 
  *) Make PrintPath work generically instead of having one version
     strictly for OS/2. [Jim Jagielski, Brian Havard]

  *) Fix the recently introduced C header file checking: We now use the C
     pre-processor pass only (and no longer the complete compiler pass) to
     determine whether a C header file exists or not. Because only this way
     we're safe against inter-header dependencies (which caused horrible
     portability problems). The only drawback is that we now have a CPP
     configuration variable which has to be determined first (we do a similar
     approach as GNU Autoconf does here). When all fails the user still has
     the possibility to override it manually via APACI or src/Configuration.
     As a fallback for the header check itself we can directly check the
     existance of the file under /usr/include, too.
     [Ralf S. Engelschall] PR#2777

  *) PORT: Added RHAPSODY (Mac OS X Server) support. MAP_TMPFILE defined
     as an alternate mechanism for mmap'd shared memory for RHAPSODY.
     ap_private_extern defined to hide symbols that conflict with loaded
     dynamic libraries on the NEXT and RHAPSODY platforms.
     [Wilfredo Sanchez <wsanchez@apple.com>]

  *) Delete PID file on clean shutdowns.
     [Charles Randall <crandall@matchlogic.com>] PR#2947

  *) Fix mod_auth_*.html documents: NSCA -> NCSA
     [Youichirou Koga <y-koga@jp.FreeBSD.org>] PR#2991

  *) Fix INSTALL document: www.gnu.ai.mit.edu -> www.gnu.org
     [Karl Berry <karl@gnu.org>] PR#2994

  *) Fix dbmmanage.1 manual page.
     [Youichirou Koga <y-koga@jp.FreeBSD.org>] PR#2992
     
  *) Fix possible buffer overflow situation in suexec.c.
     [Jeff Stewart <jws@purdue.edu>] PR#2790

  *) Add some more LIBS for the SCO5 platform which are needed for the already
     used -lprot. It's actually a bug in SCO5, of course.
     [Ronald Record <rr@sco.com>] PR#2533

  *) Fix documentation of ProxyPass/ProxyPassReverse according to the
     trailing slash problem. [Jon Drukman <jsd@gamespot.com>] PR#2933
  
  *) Remove `-msym' option from LDFLAGS_SHLIB for the Digital UNIX (OSF/1)
     platform, because it's only supported under version 4.0 and higher. But
     because our GuessOS is still unaware of Digital UNIX versions and the
     -msym is just to optimize the DSO statup time a little bit it's safe and
     best when we leave it out now.  [Ralf S. Engelschall] PR#2969

  *) Fix the ap_log_error_old(), ap_log_unixerr() and ap_log_printf()
     functions: First all three functions no longer fail on strings containing
     "%" chars and second ap_log_printf() no longer does a double-formatting
     (instead it directly passes through the message to be formatted to the
     real internal formatting function). [Ralf S. Engelschall] PR#2941

  *) Allow "Include" directives anywhere in the server config
     files (but not .htaccess files).  [Ken Coar] PR#2727

  *) The proxy was refusing to serve CONNECT requests except to
     port 443 (https://) and 563 (snews://). The new AllowCONNECT
     directive allows the configuration of the ports to which a
     CONNECT is allowed.  [Sameer Parekh, Martin Kraemer]

  *) mod_expires will now act on content that is not sent from a file
     on disk.  Previously it would never add an Expires: header to
     any response that did not come from a file on disk; the only
     case where it still doesn't (and can't) add one for that type of 
     content is if you are using a modification date based setting.  
     [Marc Slemko, Paul Phillips <paulp@go2net.com>]

  *) Problems encountered during .htaccess parsing or CGI execution
     that lead to a "500 Server Error" condition now provide explanatory
     text (in the *ERROR_NOTES envariable) to ErrorDocument 500 scripts.
     [Ken Coar] PR#1291

  *) Add NameWidth keyword to IndexOptions directive so that the
     width of the filename column is customisable.  [Ken Coar, Dean Gaudet]
     PR#1949, 2324.

  *) Recognize lowercase _and_ uppercase `uname' results under
     SCO OpenServer. [David Coelho <drc@ppt.com>]

  *) As duplicate "HTTP/1.0 200 OK" lines within the header seem to be
     a common problem of (mis-administrated?) IIS servers, make the apache
     proxy immune to these errors (and ignore the duplicates, but log
     the fact to error_log). [Martin Kraemer], after the proposal in PR#2914 
     
  *) The <IfModule and <IfDefine block starting directives now only
     allow exactly one argument. Previously, the optional negation
     character '!' could be separated by whitespace without a syntax
     error being reported, albeit defeating the IfModule functionality
     (enclosed directives would ALWAYS be executed). By using the
     stricter syntax, these hard-to-track errors can be avoided.
     [Martin Kraemer]

  *) Simplify handling of IndexOptions in mod_autoindex -- and BTW
     cause the standalone FancyIndexing directive to logically OR
     into any existing IndexOptions settings rather than wiping
     them out.  [Ken Coar]

  *) Changes in ftp proxy: make URL parsing simpler by using the
     parsed_uri stuff.
     + Add display of the "current directory" in cases where it's
     different from the supplied path (e.g., ftp://user@host/ lives
     in /home/user, not in /, therefore clicking on "../" in the
     starting directory might send us to /home/).
     + When ftp login fails, (esp. when a user name was part of the
     URL already), we now return [401 Unauthorized ] to allow the
     browser to pop up an authorization dialog. This makes passwords
     slightly less visible (they don't appear in the regular log files)
     and implements a functionality that other www proxy servers
     already offered.
     [Martin Kraemer]

  *) Triggered by the recent "Via:" header changes, the proxy module would
     dump core for replies with invalid headers (e.g., duplicate
     "HTTP/1.0 200 OK" lines). These errors are now logged and the
     core dump is avoided. Also, broken replies are not cached.
     [Martin Kraemer] PR#2914

  *) new `GprofDir' directive when compiled with -DGPROF, where gprof can
     plop gmon.out profile data for each child [Doug MacEachern]
   
  *) Use the construct ``"$@"'' instead of ``$*'' in the generated
     config.status script to be immune against arguments with whitespaces.
     [Yves Arrouye <yves@apple.com>] PR#2866

  *) Replace the inlined information grabbing stuff for the configuration
     adjustment feature (no --without-confadjust) with calls to a new helper
     script `buildinfo.sh' which is both more flexible and already proofed to
     be more robust against platform differences. This mainly fixes the
     recently occured ``sed: command garbled: ...'' problems.
     [Ralf S. Engelschall] PR#2776, PR#2848

  *) Make ab.c again pass ``gcc -Wall -Wshadow -Wpointer-arith -Wcast-align
     -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline''
     without complains after we recently added the POST feature.
     [Ralf S. Engelschall]

  *) Renamed is_HTTP_xxx() macros to ap_is_HTTP_xxx() name. They are used inside
     modules as API functions and we forgot them at the big symbol renaming.
     [Ralf S. Engelschall]

  *) Remove bad reference to non-existing SERVER_VERSION in mod_rewrite.html
     [Youichirou Koga <y-koga@jp.FreeBSD.ORG>] PR#2895

  *) Dynamically size the filename column of mod_autoindex output.
     [Dean Gaudet]

  *) Add the ability to do POST requests to the ab benchmarking tool.
     [Kurt Sussman <kls@best.com>] PR#2871

  *) Bump up MAX_ENV_FLAGS in mod_rewrite.h from the too conservatice limit of
     5 to 10 because there are some users out there who always have 5 to 8
     variables in one RewriteRule and had to patch mod_rewrite.h for every
     release. So 15 should be now more than enough, even for them. (I never
     needed more than 4 in my RewriteRules ;-)
     [Ralf S. Engelschall]

  *) Make the proxy generate and understand Via: headers
     [Martin Kraemer]

  *) Change the proxy to use tables instead of array_headers for
     the header lines. [Martin Kraemer]

  *) Make sure the config.status file is not overridden when just
     ``configure --help'' is used. [Ralf S. Engelschall] PR#2844

  *) Split MODULE_MAGIC_NUMBER into _MAJOR/_MINOR numbers. This should
     provide a way to trace API changes that add functionality but do
     not create a compatibility issue for precompiled modules, etc.
     See include/ap_mmn.h for more details.  [Randy Terbush]

  *) Fix suexec installation under `make install root=xxx' situation.
     [Ralf S. Engelschall]

  *) Extend the output of the -V switch to include the paths of all
     compiled-in configuration files, if they were overridden at
     compile time, for least astonishment of the user.
     [Martin Kraemer]

  *) When READing a request in ExtendedStatus mode, the "old"
     vhost, request and client information is not displayed.
     [Jim Jagielski]

  *) STATUS is no longer available. Full status information now
     run-time configurable using the ExtendedStatus directive.
     [Jim Jagielski]

  *) SECURITY: Eliminate O(n^2) space DoS attacks (and other O(n^2)
     cpu time attacks) in header parsing.  Add ap_overlap_tables(),
     a function which can be used to perform bulk update operations
     on tables in a more efficient manner.  CAN-1999-1199 (cve.mitre.org)
     [Dean Gaudet]

  *) SECURITY: Added compile-time and configurable limits for
     various aspects of reading a client request to avoid some simple
     denial of service attacks, including limits on maximum request-line
     size (LimitRequestLine), number of header fields (LimitRequestFields),
     and size of any one header field (LimitRequestFieldsize).  Also added
     a configurable directive LimitRequestBody for limiting the size of the
     request message body.  [Roy Fielding]

  *) Make status module aware of DNS and logging states, even if
     STATUS not defined.  [Jim Jagielski]

  *) Fix a problem with the new OS/2 mutexes.  [Brian Havard]

  *) Enhance mod_speling so that CheckSpelling can be used in
     <Directory> containers and .htaccess files.  [Ken Coar]

  *) API: new ap_custom_response() function for hooking into the
     ErrorDocument mechanism at runtime [Doug MacEachern]

  *) API: new ap_uuencode() function [Doug MacEachern]

  *) API: scan_script_header_err_core() now "public" and renamed
     ap_scan_script_header_err_core() [Doug MacEachern]

  *) The 'status' module will now show the process pid's and their
     state even without full STATUS accounting. [Jim Jagielski]

  *) Restore the client IP address to the error log messages, this
     was lost during the transition from 1.2 to 1.3.  Add a new
     function ap_log_rerror() which takes a request_rec * and
     formats it appropriately.  [Dean Gaudet] PR#2661

  *) Cure ap_cfg_getline() of its nasty habit of compressing internal
     whitespace in input lines -- including within quoted strings.
     [Ken Coar]
     but leading and trailing whitespace should continue to be
     stripped [Martin Kraemer]

  *) Cleanup of the PrintPath/PrintPathOS2 helper functions. Avoid
     the ugly use of an env. variable and use command-line args for
     alternate $PATH. Make more like advanced 'type's as well.
     [Jim Jagielski]

  *) The IRIXN32 Rule was being ignored. Configure now correctly adds
     -n32 only if IRIXN32 says to. [Jim Jagielski, Alain St-Denis
     <alain.st-denis@ec.gc.ca>] PR#2736

  *) Clean up a warning in mod_proxy. [Ralf S. Engelschall]

  *) Renamed __EMX__ (internal define of the gcc port under OS/2) to OS2
     following the same idea as "MSVC vs WIN32". Additionally the src/os/emx/
     directory was renamed to src/os/os2/ for consistency.
     [Brian Havard, Ralf S. Engelschall]

  *) Add new Rule SHARED_CHAIN which can be used to enable linking of DSO
     files (here modules) against other DSO files (here shared libraries).
     This is done by determining a subset of LIBS which can be safely used for
     linking the DSOs, i.e. PIC libs and shared libs.  Currently the rule is
     disabled for all platforms to avoid problems with this (experimental)
     rule. But we provide it now for those people how ran into problems and
     want to came out by forcing linking against DSOs.
     [Ralf S. Engelschall] PR#2587

  *) Fix suEXEC start message: Has to be of `notice' level to really get
     printed together with the standard startup message because the `notice'
     level is handled special inside ap_log_error() for startup messages.
     [Ralf S. Engelschall] PR#2761 PR#2761 PR#2765

  *) Add correct `model' MIME types from RFC2077 to mime.types file.
     [Ralf S. Engelschall] PR#2732

  *) Fixed examples in mod_rewrite.html document. 
     [Youichirou Koga <y-koga@jp.FreeBSD.org>, Ralf S. Engelschall] PR#2756

  *) Allow ap_read_request errors to propagate through the normal request
     handling loop so that the connection can be properly closed with
     lingering_close, thus avoiding a potential TCP reset that would
     cause the client to miss the HTTP error response.  [Roy Fielding]

  *) One more portability fix for APACI shadow tree support: Swap order of awk
     and sed in top-level configure script to avoid sed fails on some
     platforms (for instance SunOS 4.1.3 and NCR SysV) because of the
     non-newline-termined output of Awk. [Ralf S. Engelschall] PR#2729

  *) PORT: NEC EWS4800 support.
     [MATSUURA Takanori <t-matsuu@protein.osaka-u.ac.jp>]

  *) Fix a segfault in the proxy on OS/2.  [Brian Havard]

  *) Fix Win32 part of ap_spawn_child() by providing a reasonable child_info
     structure instead of just NULL. This fixes at least the RewriteMap
     programs under Win32. [Marco De Michele <mdemichele@tin.it>] PR#2483

  *) Add workaround to top-level `configure' script for brain dead 
     `echo' commands which interpet escape sequences per default.
     [Ralf S. Engelschall] PR#2654

  *) Make sure that the path to the Perl interpreter is correctly
     adjusted under `make install' also for the printenv CGI script.
     [Ralf S. Engelschall] PR#2595
 
  *) Update the mod_rewrite.html document to correctly reflect the situation
     of the `proxy' (`[P]') feature. [Ralf S. Engelschall] PR#2679

  *) Fix `install-includes' sub-target of `install' target in top-level
     Makefile.tmpl: The umask+cp approach didn't work as expected (especially
     for users which extracted the distribution under 'umask 077'), so replace
     it by an explicit cp+chmod approach.
     [Richard Lloyd, Curt Sampson, Ralf S. Engelschall] PR#2656 PR#2626
 
  *) Fix `distclean' and `clean' targets in src/Makefile.tmpl to have same
     behavior and to cleanup correctly even under enabled SHARED_CORE rule.
     [Ralf S. Engelschall]

  *) Use a more straight forward and thus less problematic Sed command in
     src/helper/mkdir.sh script.  [Ralf S. Engelschall]

  *) Make sure the `configure' scripts doesn't fail when trying to guess the
     domainname of the machine and there are multiple `domainname' and
     `search' entries in /etc/resolv.conf.
     [Ralf S. Engelschall] PR#2710

  *) Add note about the SHARED_CORE requirement on some platforms also to the
     INSTALL file because a lot of users don't read htdocs/manual/dso.html
     first. [Ralf S. Engelschall] PR#2701

  *) Fix document "hyperlink" for dso.html in src/Configuration.tmpl
     [Knut A.Syed <Knut.Syed@nhh.no>] PR#2674

  *) Modify mod_rewrite to update the Vary response field if the URL rewriting
     engine does any manipulations or decisions based upon request fields. 
     [Ken Coar] PR#1644

  *) Document the special APACI behavior for installation paths where
     ``/apache'' is appended to paths under some (well defined, of course)
     situations to prevent pollution of system locations with Apache files.
     [Ralf S. Engelschall] PR#2660

  *) Fixed problem with buffered response message not being sent for
     the read_request error conditions of URI-too-long (414) and
     malformed header fields (400).  [Roy Fielding] PR#2646

  *) Add support for the Max-Forwards: header line required by RFC2068 for
     the TRACE method. This allows apache to TRACE along a chain of proxies
     up to a predetermined depth. [Martin Kraemer]

  *) Fix SHARED_CORE rule: The CFLAGS_SHLIB variable is no longer doubled
     (compilers complained) and the .so.V.R.P filename extension was adjusted
     to correctly reflect the 1.3.2 version.
     [Ralf S. Engelschall] PR#2644

  *) SECURITY: Plug "..." and other canonicalization holes under OS/2.
     [Brian Havard]
  
  *) PORT: implement serialized accepts for OS/2.  [Brian Havard]

  *) mod_include had problems with the fsize and flastmod directives
     under WIN32.  Fix also avoids the minor security hole of using
     ".." paths for fsize and flastmod.
     [Manoj Kasichainula <manojk@raleigh.ibm.com>] PR#2355

  *) Fixed some Makefile dependency problems.  [Dean Gaudet]

Changes with Apache 1.3.1

  *) Disable the incorrect entry for application/msword in the 
     mod_mime_magic "magic" file because it also matches other Office
     documents.  [Ralf S. Engelschall] PR#2608

  *) Fix broken RANLIB handling in src/Configure (the entry from
     src/Configuration.tmpl was ignored) and additionally force RANLIB to
     /bin/true under HP/UX where ranlib exists but is deprecated.
     [Ralf S. Engelschall] PR#2627
     
  *) 'apachectl status' failed on some systems.
     [Steve VanDevender <stevev@darkwing.uoregon.edu>, Lars Eilebrecht] PR#2613

  *) Add new flags for ap_unparse_uri_components() to make it generate
     the scheme://sitepart string only, or to omit the query string.
     [Martin Kraemer]

  *) WIN32: Canonicalize ServerRoot before checking to see if it
     is a valid directory.  The failure to do this caused certain
     ServerRoot settings (eg. "ServerRoot /apache") to be improperly
     rejected.  [Marc Slemko]

  *) Global renaming of C header files to both get rid of conflicts with third
     party packages and to again reach consistency:
       1. conf.h      -> ap_config.h
       2. conf_auto.h -> ap_config_auto.h \ these are now merged
       3. ap_config.h -> ap_config_auto.h / in the config process
       4. compat.h    -> ap_compat.h
       5. apctype.h   -> ap_ctype.h
     Backward compatibility files for conf.h and compat.h were created.

  *) mod_mmap_static will no longer take action on requests unless at 
     least one "mmapfile" directive is present in the configuration. 
     This experimental module has to do some black magic to operate 
     inside the current API and thus creates side-effects for other 
     modules under some circumstances.
     [Ralf S. Engelschall]
 
  *) Add conservative ticks around more egrep arguments in top-level configure
     to avoid problems under brain-dead platforms like Digital UNIX (OSF1).
     [Ralf S. Engelschall] PR#2596

  *) mod_rewrite created RewriteLock files under the UID of the parent
     process, thus the child processes had no write access to the files.
     Now a chown() is done on the file to the uid of the children,
     if applicable.  [Lars Eilebrecht, Ralf S. Engelschall] PR#2341

  *) Autogenerate some HAVE_XXXXX_H defines in conf_auto.h (determined via
     TestCompile) instead of defining them manually in conf.h based on less
     accurate platform definitions.  This way we no longer have to fiddle with
     OS-type and/or OS-version identifiers to discover whether a system header
     file exists or not.  Instead we now directly check for the existence of
     those esoteric ones. 
     [Ralf S. Engelschall] PR#2093, PR#2361, PR#2377, PR#2434,
                           PR#2524, PR#2525, PR#2533, PR#2569

  *) mod_setenvif (BrowserMatch* and friends) will now match a missing
     field with "^$".  [Ken Coar]

  *) Set the RTLD_GLOBAL dlopen mode parameter to allow dynamically loaded
     modules to load their own modules dynamically.  This improves mod_perl
     and mod_php3 when these modules are loaded dynamically into Apache.
     [Rasmus Lerdorf]

  *) Cache a proxied request in the event that the client cancels the
     transfer, provided that the configured percentage of the file has
     already been transfered. It works for HTTP transfers only.  The 
     new configuration directive is called CacheForceCompletion. 
     [Glen Parker <glenebob@nwlink.com>] PR#2277

  *) Add the "<!DOCTYPE HTML" magic cookie used by modern documents (and
     required by HTML 3.2 and later) to mod_mime_magic's conf/magic.
     [Anna Shergold <anna@inext.co.uk>]

  *) Fix yet another signal-based race condition involving nested timers.
     Signals suck.  [Dean Gaudet]

  *) suexec's error messages have been clarified a little bit.  [Ken Coar]

  *) Clean up some, but perhaps not all, 8-bit character set problems
     with config file parsing, and URL parsing.  We now define
     ap_isdigit(), ap_isupper(), ... which cast to an (unsigned char).
     This should work on most modern unixes.
     [Dean Gaudet] PR#800, 2282, 2553  (and others)

  *) The "handler not found" error was issued in cases where the handler
     really did exist, but was just declining to serve the request.
     [John Van Essen <jve@gamers.org>] PR#2529

  *) Add Dynamic Shared Object (DSO) support for SCO5 (OpenServer 5.0.x).
     [Ronald Record <rr@sco.com>] PR#2533

  *) The APACI libexecdir was not extended with an "apache/" subdir
     if the installation prefix didn't already contain "apache", but
     it should be because the DSO files are Apache-specific.  Now
     libexecdir is treated the same way sysconfdir, datadir, localstatedir
     and includedir are already treated.
     [Charles Levert <charles@comm.polymtl.ca>] PR#2551

  *) The <Limit> parsing routine was incorrectly treating methods as
     case-insensitive.  [Ken Coar]

  *) The ap_bprintf() code neglected to test if there was an error on
     the connection.  ap_bflush() misdiagnosed a failure as a success.
     [Dean Gaudet]

  *) add support for #perl arg interpolation in mod_include
     [Doug MacEachern]

  *) API: Name changes of table_elts to ap_table_elts, is_table_empty
     to ap_is_table_empty and bgetflag to ap_bgetflag. [Ben Laurie]

  *) PORT: Add UnixWare 7 support
     [Vadim Kostoglodoff <vadim@olly.ru>] PR#2463

  *) Fix the Guess-DSO-flags-from-Perl stuff in src/Configure: "perl" was
     used instead of "$PERL" which contains the correctly determined Perl
     interpreter (important for instance on systems where "perl" and "perl5"
     exists, like BSDI or FreeBSD, etc).
     [Ralf S. Engelschall] PR#2505

  *) Move the initial suEXEC-related startup message from plain
     fprintf()/stderr to a delayed ap_log_error()-based one to avoid problems
     when Apache is started from inetd (instead of standalone). Under this
     situation startup messages on stderr lead to problems (the line is sent
     to the client in front of the requested document).
     [Ralf S. Engelschall] PR#871, PR#1318

  *) Add a flag so ap_fnmatch() can be used for case-blind pattern matching.
     [Ken Coar, Dean Gaudet]

  *) WIN32: Don't collapse multiple slashes in PATH_INFO.
     [Ben Laurie, Bill Stoddard <wgstodda@us.ibm.com>] PR#2274

  *) WIN32 SECURITY: Eliminate trailing "."s in path components. These are
     ignored by the Windows filesystem, and so can be used to bypass security.
     [Ben Laurie, Alexei Kosut].

  *) We now attempt to dump core when we get SIGILL. [Jim Jagielski]

  *) PORT: remove broken test for MAP_FILE in http_main.c.
     [Wilfredo Sanchez <wsanchez@apple.com>]

  *) PORT: Change support/apachectl to use "kill -0 $pid" to test if the
     httpd is running.  This should be more portable than figuring out
     which of three dozen different versions of "ps" are installed.
     [a cast of dozens]

  *) WIN32: If we can't figure out how to execute a file in a script
     directory, bail out of the request with an error message.  [W G Stoddard]

  *) WIN32 SECURITY: Eliminate directories consisting of three or more dots;
     these are treated by Win32 as if they are ".." but are not detected by
     other machinery within Apache. This is something of a kludge but
     eliminates a security hole. [Manoj Kasichainula, Ben Laurie]

  *) Move ap_escape_quotes() from src/ap to src/main/util.c; it uses
     pools and thus pollutes libap (until the pool stuff is moved there).
     [Ken Coar]

  *) IndexIgnore should be case-blind on Win32 (and any other case-aware
     but case-insensitive platforms).  New #define for this added to conf.h
     (CASE_BLIND_FILESYSTEM).  [Ken Coar] PR#2455

  *) Enable DSO support for OpenBSD in general, not only for 2.x, because it
     also works for OpenBSD 1.x. [Ralf S. Engelschall]

  *) PORT: Fix compilation problem on ARM Linux.
     [Sam Kington <sam@illuminated.co.uk>] PR#2443

  *) Let APACI's configure script determine some configuration parameters
     (Group, Port, ServerAdmin, ServerName) via some intelligent tests to
     remove some of the classical hurdles for new users when setting up
     Apache. This is done per default because it is useful for the average
     user. Package authors can use the --without-confadjust option to disable
     these configuration adjustments.
     [Ralf S. Engelschall]

  *) Added an EXTRA_DEPS configuration parameter which can be used
     to add an extra Makefile dependency for the httpd target, for instance
     to external third-party libraries, etc.
     [Ralf S. Engelschall]

  *) Add <IfDefine>..</IfDefine> sections to the core module (with same spirit
     as <IfModule>..</IfModule> sections) which can be used to skip or process
     contained commands dependend of ``-D PARAMETER'' options on the command
     line. This can be used to achieve logical conditions like <IfDefine
     ReverseProxy> instead of physically ones (e.g. <IfModule mod_proxy.c>)
     and thus especially can be used for conditionally loading DSO-based
     modules via LoadModule, etc. [Ralf S. Engelschall]

  *) PORT: clean up a warning in mod_status for OS/2.  [Brian Havard]

  *) Make table elements const. This may prevent obscure errors. [Ben Laurie]

  *) Fix parsing of FTP `SIZE' responses in proxy module: The newline was not
     truncated which forced following HTTP headers to be data in the HTTP
     reponse. [Ralf S. Engelschall, Charles Fu <ccwf@bacchus.com>] 
     PR#2412, 2367

  *) Portability fix for APACI shadow tree support: Swap order of awk and sed
     in top-level configure script to avoid sed fails on some platforms (for
     instance SunOS 4.1.3 and NCR SysV) because of the non-newline-termined
     output of Awk. [Bill Houle <bhoule@sandiegoca.ncr.com>] PR#2435

  *) Improve performance of directory listings (mod_autoindex) by comparing
     integer keys (last-modified and size) as integers rather than converting
     them to strings first.  Also use a set of explicit byte tests rather
     than strcmp() to check for parent directory-ness of an entry.  Oh, and
     make sure the parent directory (if displayed) is *always* listed first
     regardless of the sort key.  Overall performance winnage should be good
     in CPU time, instruction cache, and memory usage, particularly for large
     directories.  [Ken Coar]

  *) Add a tiny but useful goody to APACI's configure script: The generation
     of a config.status script (as GNU Autoconf does) which remembers the used
     configure command and hence can be used to restore the configuration by
     just re-running this script or for remembering the configuration between
     releases.
     [Ralf S. Engelschall]

  *) Add httpd -t (test) option for running configuration syntax tests only.
     If something is broken it complains and exits with a return code
     non-equal to 0. This can be used manually by the user to check the Apache
     configuration after editing and is also automatically used by apachectl
     on (graceful) restart command to make sure Apache doesn't die on restarts
     because of a configuration which is now broken since the last (re)start.
     This way `apachectl restart' can be used inside cronjobs without having
     to expect Apache to be falling down. Additionally the httpd -t can be run
     via `apachectl configtest'.
     [Ralf S. Engelschall] PR#2393
  
  *) Minor display fix for "install" target of top-level Makefile:
     the displayed installation command was incorrect although the
     executed command was correct. Now they are in sync.
     [Ralf S. Engelschall] PR#2402

  *) Correct initialization of variable `allowed_globals' in http_main.c
     [Justin Bradford <justin@ukans.edu>] PR#2400

  *) Apache would incorrectly downcase the entire Content-Type passed from
     CGIs.  This affected server-push scripts and such which use
     multipart/x-mixed-replace;boundary=ThisRandomString.
     [Dean Gaudet] PR#2394

  *) PORT: QNX update to properly guess 32-bit systems.
     [Sean Boudreau <seanb@qnx.com>] PR#2390

  *) Make sure the DSO emulation code for HPUX finds the proprietary shl_xxx()
     functions which are in libdld under HPUX 9/10.
     [Ralf S. Engelschall] PR#2378

  *) Make sure the "install" target of the top-level Makefile doesn't break
     because of a return code of 1 from an "if" (for instance under braindead
     Ultrix the result code of an "if" construct is 1 if the "then" clause
     didn't match). [Ralf S. Engelschall]

  *) Add an additional "dummy" target to the "$(LIB)" target in generated
     modules/xxx/Makefile's to avoid problems with SVR4 Make under "full-DSO"
     situation (no libxxx.a built, only mod_xxx.so's) where LIB and OBJS are
     empty. [Ralf S. Engelschall, Dean Gaudet, Martin Kraemer]

  *) Replace two bad sprintf() calls with ap_snprintf() variants in
     mod_rewrite. [Ralf S. Engelschall]

  *) Fix missing usage description for MetaFiles directive.
     [David MacKenzie <djm@va.pubnix.com>] PR#2384

  *) mod_log_config wouldn't let vhosts use log formats defined in the
     main server.  [Christof Damian <damian@mediaconsult.com>] PR#2090

  *) mod_usertrack was corrupting the client hostname.  As part of the
     fix, the cookie values were slightly extended to include the
     fully qualified hostname of the client.
     [Dean Gaudet] PR#2190, 2229, 2366

  *) Fix a typo in pool debugging code.  [Alvaro Martinez Echevarria]

  *) mod_unique_id did not work on alpha linux (in general on any
     architecture that has 64-bit time_t).
     [Alvaro Martinez Echevarria]

  *) PORT: Make SCO 5 (and probably 3) compile again. [Ben Laurie]

  *) PORT: NCR MPRAS systems have the same bug with SIGHUP restart that
     Solaris systems experience.  So define WORKAROUND_SOLARIS_BUG.
     [Klaus Weber <kweber@chephren.germany.ncr.com>] PR#1973

  *) Change "Options None" to "Options FollowSymLinks" in the 
     <Directory /> section of the default access.conf-dist
     (and -win even though it doesn't matter there).  This has better
     performance, and more intuitive semantics.  [Dean Gaudet]

  *) PORT: Updated support for UTS 2.1.2.
     [Dave Dykstra <dwd@bell-labs.com>] PR#2320

  *) Fix symbol export list (src/support/httpd.exp) after recent
     API changes in the child spawning area.
     [Jens-Uwe Mager <jum@helios.de>]

  *) Workaround for configure script and old `test' commands which do not
     support the -x flag (for instance under platforms like Ultrix). This is
     solved by another helper script findprg.sh which searches for Perl and
     Awk like PrintPath but _via different names_.
     [Ralf S. Engelschall]

  *) Remove the system() call from htpasswd.c, which eliminates a system
     dependancy.  ["M.D.Parker" <mdpc@netcom.com>] PR#2332

  *) PORT: Fix compilation failures on NEXTSTEP.
     [Rex Dieter <rdieter@math.unl.edu>] PR#2293, 2316

  *) PORT: F_NDELAY is a typo, should have been FNDELAY.  There's also
     O_NDELAY on various systems.  [Dave Dykstra <dwd@bell-labs.com>] PR#2313

  *) PORT: helpers/GuessOS updates for various versions for NCR SVR4.
     [juerg schreiner <j.schreiner@zh.ch>,
     Bill Houle <Bill.Houle@SanDiegoCA.NCR.COM>] PR#2310

  *) Fix recently introduced Win32 child spawning code in mod_rewrite.c which
     was broken because of invalid ap_pstrcat() -> strcat() transformation.
     [Ralf S. Engelschall]

  *) Proxy Cache Fixes: account for directory sizes, fork off garbage collection
     to continue in background, use predefined types (off_t, size_t, time_t),
     log the current cache usage percentage at LogLevel debug
     [Martin Kraemer, based on discussion between Dean Gaudet & Dirk vanGulik]

Changes with Apache 1.3.0

  *) Using a type map file as a custom error document was not possible.
     [Lars Eilebrecht] PR#1031

  *) Avoid problems with braindead Awks by additionally searching for gawk 
     and nawk in APACI's configure script.
     [Dave Dykstra <dwd@bell-labs.com>, Ralf S. Engelschall] PR#2319

  *) Rename md5.h to ap_md5.h to avoid conflicts with native MD5 on
     some systems. [Randy Terbush]

  *) Change usage of perror()+fprintf(stderr,...) in mod_rewrite to
     more proper ap_log_error() variants.
     [Ralf S. Engelschall]

  *) Make sure the argument for the --add-module option to APACI's configure
     script is of type [path/to/]mod_xxx.c because all calculations inside
     configure and src/Configure depend on this.
     [Ralf S. Engelschall] PR#2307

  *) Changes usage of perror/fprintf to stderr to more proper ap_log_error
     in mod_mime, mod_log_referer, mod_log_agent, and mod_log_config.
     [Brian Behlendorf]

  *) Various OS/2 cleanups ["Brian Havard" <brianh@kheldar.apana.org.au>]

  *) PORT: QNX needed a #include <sys/mman.h>; and now it uses flock
     serialized accept to handle multiple sockets.
     [Rob Saccoccio <robs@InfiniteTechnology.com>] PR#2295, 2296
 
  *) Have NT properly set the directory for CGI scripts 
     (& other spawned children)
     [W G Stoddard <wgstodda@us.ibm.com>]

  *) Propagate environment to CGI scripts correctly in Win32.
     [W G Stoddard <wgstodda@us.ibm.com>] PR#2294

  *) Some symbol renaming:
     ap_spawn_child_err became ap_spawn_child
     ap_spawn_child_err_buff became ap_bspawn_child
     spawn_child was obsoleted and moved to compat.h
     [Brian Behlendorf]

  *) Upgrade the child spawning code in mod_rewrite for the RewriteMap
     programs: ap_spawn_child_err() is used and the Win32 case now uses
     CreateProcess() instead of a low-level execl() (which caused problems in
     the past under Win32).
     [Ralf S. Engelschall]

  *) A few cosmetics and trivial enhancements to APXS to make the
     generated Makefile more user friendly. [Ralf S. Engelschall]

  *) Proxy Fix: The proxy special failure routine ap_proxyerror()
     was updated to use the normal apache error processing, thereby allowing
     proxy errors to be treated by ErrorDocument's as well. For this
     purpose, a new module-to-core communication variable "error-notes"
     was introduced; the proxy (and possibly other modules) communicates
     its error text using this variable. Its content is copied to a new
     cgi-env-var REDIRECT_ERROR_NOTES for use by ErrorDocuments.
     The old proxy special error routine ap_proxy_log_uerror()
     was replaced by regular ap_log_error() calls, many messages were made
     more informative. 
     [Martin Kraemer] PR#494, 1259

  *) SECURITY: A possible buffer overflow in the ftp proxy was fixed.
     [Martin Kraemer]

  *) Transform the configure message "You need root privileges for suEXEC"
     from a fatal error into a (more friendly) warning because the building
     ("make") of Apache we can allow, of course. Root privileges are needed
     only for the installation step ("make install"). So make sure the
     user is aware of this fact but let him proceed as long as he can.
     [Ralf S. Engelschall] PR#2288
  
  *) Renamed three more functions to common ap_ prefix which we missed at the
     Big Symbol Renaming because they're #defines and not real C functions:
     is_default_port(), default_port(), http_method().
     [Ralf S. Engelschall]

  *) A zero-length name after a $ in an SSI document should cause
     just the $ to be in the expansion.  This was broken during the
     security fixes in 1.2.5.  [Dean Gaudet] PR#1921, 2249

  *) Call ap_destroy_sub_req() in ap_add_cgi_vars() to reclaim some
     memory.  [Rob Saccoccio <robs@InfiniteTechnology.com>] PR#2252

  *) Fix src/support/httpd.exp (DSO export file which is currently only
     used under AIX) because of recent changes to function names.
     [Ralf S. Engelschall]

Changes with Apache 1.3b7

  *) Make sure a MIME-type can be forced via a RewriteRule even when no
     substitution takes place, for instance via the following rule:
     ``RewriteRule ^myscript$ - [T=application/x-httpd-cgi]'' This was often
     requested by users in the past to force a single script without a .cgi
     extension and outside any cgi-bin dirs to be executed as a CGI program.
     [Ralf S. Engelschall] PR#2254

  *) A fix for protocol issues surrounding 400, 408, and
     414 responses. [Ed Korthof]

  *) Ignore MaxRequestsPerChild on WIN32. [Brian Behlendorf]

  *) Fix discrepancy in proxy_ftp.c which was causing failures when 
     trying to connect to certain ftpd's, such as anonftpd.  
     [Rick Ohnemus <rick@ecompcon.com>]

  *) Make mod_rewrite use ap_open_piped_log() for RewriteLog directive's
     logfile instead of fiddling around itself with child spawning stuff.
     [Ralf S. Engelschall]

  *) Made RefererIgnore case-insensitive.

  *) Mod_log_agent, mod_log_referer now use ap_open_piped_log for piped logs.
     [Brian Behlendorf]

  *) Replace use of spawn_child with ap_spawn_child_err_buff, to make everything
     "safe" under Win32.  In: mod_include.c, mod_mime_magic.c
     [Brian Behlendorf]

  *) Improve RFC1413 support. [Bob Beck <beck@bofh.ucs.ualberta.ca>]

  *) Fix support script `dbmmanage': It was unable to handle some sort
     of passwords, especially passwords with "0" chars.
     [Ralf S. Engelschall] PR#2242

  *) WIN32: Clicking on "Last Modified" in a fancy index caused a crash. Fixed.
     [Ben Laurie] PR#2238

  *) WIN32: CGIs could cause a hang (because of a deadlock in the standard C
     library), so CGI handling has been changed to use Win32 native handles
     instead of C file descriptors.
     [Ben Laurie and Bill Stoddard <wgstodda@us.ibm.com>] PR#1129, 1607

  *) The proxy cache would store an incorrect content-length in the cached
     file copy after a cache update. That resulted in repeated fetching
     of the original copy instead of using the cached copy.
     [Ernst Kloppenburg <kloppen@isr.uni-stuttgart.de>] PR#2094

  *) The Makefiles assumed that DSO files are build via $(LD). This
     is broken for two reasons: First we never defined at least LD=ld
     somewhere to make sure this works (it was silently assumed that most Make
     provide a built-in LD definition - ARGL!) and second using the generic LD
     variable is not the truth. Instead a special variable named LD_SHLIB is
     reasonable because although "ld" is usually the default, the command for
     building DSO files can be "libtool" or even "cc" on some systems.
     [Ralf S. Engelschall]

  *) Replace the AddVersionPlatform directive with ServerTokens which
     provides for more control over the format of the Server:
     header line. SERVER_SUBVERSION is no longer supported;
     all module should use the ap_add_version_component()
     API function instead. [Jim Jagielski]

  *) Support for the NCR MP/RAS 3.0
     [John Withers <withers@semi.kcsc.mwr.irs.gov>]

  *) The LDFLAGS_SHLIB_EXPORT variable of src/Configuration[.tmpl] was
     not retrieved in src/Configure and thus was not useable.
     [Ralf S. Engelschall]
 
  *) Various Makefile consistency cleanups:
     - make OSDIR also automatically be relative to src/ like INCDIR
     - SUBDIRS is now generated in src/Makefile only and not in
       Makefile.config because it is a local define for this location.
     - remove BROKEN_BPRINTF_FLAGS because is it no longer used inside
       any Makefile but make sure that at least the "-K inline" is kept in
       CFLAGS for SCO 5.
     - update the "depend" targets in Makefile.tmpl files to use $(OSDIR), too.
     - updated the dependencies theirself
     - removed not existing SHLIB variable from "clean" targets
     - replaced SHLIB_OBJS/SHLIBS_OBJ consistently with OBJS_PIC because OBJS
       already exists and OBJS_PIC are also just plain objects and have not
       directly to do with "shared" things. The only difference is that they
       contain PIC. So OBJS_PIC is the more canonical name.
     - Updated the Makefile-dependency lines for OBJS_PIC
     - Removed the Makefile-dependency line in Configure to avoid double
       definitions
     - replaced ugly xx-so.o/xx.so-o hack with a clean and consistent usage
       of xxx.lo as GNU libtool does with its PIC objects
     - reduce local complexity in modules Makefile.tmpl by moving the last
       existing target "depend" to the generation section in Configure, too.
     - removed the historical $(SPACER) which was used in the past together
       with BROKEN_BPRINTF_FLAGS to avoid zig-zags in the build process. This
       is no longer needed.
     - force the build and run of the gen_xxx programs under main/ as the
       first step before building the objects because it looks cleaner
     [Ralf S. Engelschall]

  *) WIN32: Make Win32 work again after the /dev/null DoS fix.
     [Ben Laurie]

  *) WIN32: Check for buffer overflows in ap_os_canonical_filename.
     [Ben Laurie]

  *) WIN32: Don't force ISAPI headers to finish with \n.
     [Jim Patterson <Jim.Patterson@Cognos.COM>, Ben Laurie] PR#2060

  *) When opening "configuration" files (like httpd.conf, htaccess
     and htpasswd), Apache will not allow them to be non-/dev/null
     device files. This closes a DoS hole. At the same time,
     we use ap_pfopen to open these files to handle timeouts.
     [Jim Jagielski, Martin Kraemer]

  *) Apache will now log the reason its httpd children exit if they exit
     due to an unexpected signal.  (It requires a new porting define,
     SYS_SIGLIST, which if defined should point to a list of text
     descriptions of the signals available.  See PORTING.)  [Dean Gaudet]

  *) WIN32: chdir() doesn't make sense in a multithreaded environment 
     like WIN32.  Before, Win32 CGI's could have had sporadic failures 
     if a chdir call from one thread was made between another chdir call 
     and a spawn in another thread.  So, for now don't chdir for CGI scripts 
     in WIN32.  The current CGI "spec" is unclear as to whether it's 
     necessary.  Long-term fix is to either serialize the chdir/spawn combo 
     or use WIN32 native calls to spawn a process.  This temp fix was 
     necessary to remove this as a showstopper for 1.3's release. 
     [Brian Behlendorf]

  *) Cleanup the suEXEC support in APACI and make it more safe:
     1. Add big fat hint in INSTALL about risks and to read the
        htdocs/manual/suexec.html document before using the suexec-related
        configure options.
     2. Make sure the user has at least provided one --suexec-xxxx option
        (specifies suEXEC parameters) in addition to --enable-suexec option.
        If only --enable-suexec is given APACI stops with a hint to INSTALL
        and htdocs/manual/suexec.html documents.
     3. Provide two additional --suexec-xxxx options to make the suEXEC
        configuration complete (especially for package maintainers who else
        had to patch the source tree) by providing ways to configure minimal
        UID/GID and safe PATH, too.
     [Ralf S. Engelschall]

  *) Cleanup of the `configure --shadow' process:
     - make sure the configure script creates its temporary files in the
       shadow tree to avoid conflicts with parallel configure runs
     - removed unnecessary option "-r" from "rm" call for Makefiles
     - make sure the configure scripts creates the shadow-wrapper Makefile
       only when no shadow trees already exists
     - make sure "make distclean" removes the shadow-wrapper Makefile but only
       when no more shadow trees exists
     - overhauled mkshadow.sh script: now its more IFS-safe and approx. twice
       as fast (in the past it needed 70sec, now it runs just 38sec)
     - make sure CVS does not complain about the created files
       Makefille.<gnutriple> and directories src.<gnutriple>
     [Ralf S. Engelschall]

  *) Added the ap_add_version_component() API routine and the
     AddVersionPlatform core directive.  The first allows modules to
     declare themselves in the Server response header field value,
     augmenting the SERVER_SUBVERSION define in the Configuration file
     with run-time settings (more useful in a loadable-module environment).
     AddVersionPlatform inserts a comment such as "(UNIX)" or "(Win32)"
     into the server version string.  [Ken Coar] PR#2056

  *) Minor stability tweaks to avoid core dumps in ap_snprintf.
     [Martin Kraemer]

  *) Emit the "Accept-Range" header for the default handler.
     [Brian Behlendorf] PR#1464

  *) Add a note to httpd.conf-dist that apache will on some systems fail
     to start when the Group # is set to a negative or large positive value.
     [Martin Kraemer]

  *) Make sure the module execution order is correct even when some modules
     are loaded under runtime (`LoadModule') via the DSO mechanism:
     1. The list of loaded modules is now a dynamically allocated one
        and not the original statically list from modules.c
     2. The loaded modules are now correctly setup by LoadModule for
        later use by the AddModule command.
     3. When the DSO mechanism for modules is used APACI's `install'
        target now enables all created `LoadModule' lines per default because
        this is both already expected by the user _and_ needed to avoid
        confusion with the next point and reduces the Makefile.tmpl complexity
     4. When the DSO mechanism for modules is used, APACI's `install'
        target now additionally makes sure the module list is reconstructed
        via a complete `ClearModuleList+AddModule...' entry.
     5. The support tool `apxs' now also makes sure an AddModule command
        is added in addition to the LoadModule command.
     6. The modules.c generation was extended to now contain two
        comments to make sure no one is confused by the confusing terminology
        of loading/linking (we use load=link+load & link=activate instead of
        the obvious load=activate & link=link :-( )
     This way now there is no longer a difference under execution time between
     statically and dynamically linked modules.
     [Ralf S. Engelschall]

  *) Fix the generated mod_xxx.c from "apxs -g -f xxx" after the
     Big Symbol Renaming. [Ralf S. Engelschall]

  *) Add a comment to mod_example.c showing the format of a FLAG command
     handler.  [Ken Coar]

  *) Standardized the time format in mod_status to match that of other 
     places in the code (e.g. DATE_GMT).  PR#1551

  *) Fix handling of %Z in timefmt strings for those platforms with no time
     zone information in their tm struct. [Paul Eggert <eggert@twinsun.com>]
     PR#754

  *) Makes mod_rewrite, mod_log_config, mod_status and the ServerSignature 
     feature compatible with 'UseCanonicalName off' by changing  
     r->server->server_hostname to ap_get_server_name().  And I changed some 
     functions which use r->server->port to use ap_get_server_port() instead, 
     because if there's no Port directive in the config r->server->port is 0.
     [Lars Eilebrecht]

  *) get/set_module_config are trivial enough to be better off inline.  Worth
     1.5% performance boost. [Dean Gaudet]

  *) Fix off-by-one error in ap_proxy_date_canon() in proxy_util.c
     when ensuring 'x' is at least 30-chars big. [Jim Jagielski,
     Brian Behlendorf]

  *) [BS2000 security] BS2000 needs an extra authentication to initialize
     the task environment to the unprivileged User id. Otherwise CGI scripts
     would have a way to gain super user access. [Martin Kraemer]

  *) Fix debug log messages for BS2000/OSD: instead of logging the whole
     absolute path, only log base name of logging source as is done
     in unix. [Martin Kraemer]

  *) Ronald Tschalaer's Accept-Encoding patch - preserve the "x-" in
     the encoding type from the Accept-Encoding header (if it's there)
     and use it in the response, as that's probably what it'll be expecting.
     [Ronald.Tschalaer@psi.ch]

  *) Fix to mod_alias: translate_alias_redir is dealing with
     a URI, not a filename, so the check for drive letters for win32 
     and emx is not necessary. [Dean Gaudet]

  *) WIN32: Allow .cmd as an executable extension.
     [Kari Likovuori <Kari.Likovuori@mol.fi>] PR#2146

  *) Make Apache header files, and some variables, C++ friendly.
     [Michael Anderson's <mka@redes.int.com.mx>]

  *) Child processes can now "signal" (by exiting with a status
     of APEXIT_CHILDFATAL) the parent process to abort and
     shutdown the server if the error in the child process was
     fatal enough. [Jim Jagielski]

  *) mod_autoindex's find_itme() was sensitive to MIME type case.
     [Jim Jagielski] PR#2112

  *) Make sure the referer_log and agent_log entries in the default httpd.conf
     file are also adjusted for the actual relative installation paths.
     [Ralf S. Engelschall] PR#2175

  *) WIN32: Extensive overhaul of the way UNCs are handled. [Ben Laurie]

  *) WIN32: Make roots of filesystems (e.g. c:/) work. [Ben Laurie]
     PR#1558

  *) PORT: Various porting changes to support AIX 3.2, 4.1.5, 4.2 and 4.3.
     Additionally the checks for finding the vendor DSO library were moved
     from mod_so.c to Configure because first it needs $PLAT etc. and second
     mod_so already uses an abstraction layer and does not fiddle with the
     vendor functions itself.
     [Jens-Uwe Mager, Ralf S. Engelschall]

  *) PORT: Some optimization defines for NetBSD
     [Jaromir Dolecek <dolecek@ics.muni.cz>] PR#2165

  *) PORT: Dynamic Shared Object (DSO) support for NetBSD.
     [Jaromir Dolecek <dolecek@ics.muni.cz>, Ralf S. Engelschall] PR#2158

  *) Add Dynamic Shared Object (DSO) support for AIX (at least 4.2 but older
     AIX variants should work fine, too. Even AIX 3.x should work). This is
     accomplished by using the free DSO emulation code from Jens-Uwe Mager
     which we put into a os/unix/os-dso-aix.c file.
     [Ralf S. Engelschall]
  
  *) PORT: Fix compiler warnings under AIX >= 4.2 where the manual pages imply
     that we should use NET_SIZE_T == int but the include files force size_t.
     [Ralf S. Engelschall]

  *) Fix two bugs in select() handling in http_main.c.
     [Roy Fielding]

  *) Suppress "error(0)" messages for ap_log_error() when the APLOG_NOERRNO
     is unset (as it is in situations like timeouts) where it is unclear
     whether errno is set or not.  [Martin Kraemer]

  *) Just having APACI's localstatedir is too general and not enough for most
     of the systems. 1.3b6 again required manual APACI patches by package
     maintainers from Red Hat and FreeBSD because for their filesystem layout a
     little bit more flexibility in configuring the paths is needed. Hence we
     provide three additional configure options (--runtimedir, --logfiledir,
     --proxycachedir) which now can be used for more granular adjustments if
     --localstatedir is not enough to fit the particular needs. As a nice
     side-effect this reduces some subdir fiddling in configure+Makefile.tmpl.
     [Ralf S. Engelschall]

  *) Make the install root for "make install" in APACI's Makefile overrideable
     by package authors.  This way we are even more friendly to package
     maintainers (especially Debian and Red Hat) who build for the real prefix
     via "configure --prefix=/<real>" but use a different local prefix via
     "make root=/tmp/apache install" for rolling the package without bristling
     the target location on their system. 
     [Ralf S. Engelschall]

  *) Workaround sed limitations in APACI's configure script by now
     substituting in chunks of 50 commands (because for instance HPUX's vendor
     sed has a limit of max. 98 commands)
     [Ralf S. Engelschall] PR#2136

  *) Adding SOCKS5 support and fixing existing SOCKS4 support.
     [Ralf S. Engelschall] PR#2140

  *) Manually fix some symbols which were not renamed to prefix ap_ in the BIG
     RENAMING process because they are defined as pre-processor macros instead
     of real functions: bputc, bgetc, piped_log_write_fd, piped_log_read_fd
     [Ralf S. Engelschall]

  *) Workaround braindead AWK's when generating ap_config.h: The split() and
     substr() functions cannot be nested under vendor AWK from Solaris 2.6.
     [Ralf S. Engelschall] PR#2139

  *) Various bugfixes and cleanups for the APACI configure script:
     o fix IFS handling for _nested_ situation
     o fix Perl interpreter search: take first one found instead of last one
     o fix DSO consistency check
     o print error messages to stderr instead of stdout
     o add install-quiet for --shadow situation to Makefile stub
     o reduce complexity by avoiding sed-hacks for rule and module list loops
     [Ralf S. Engelschall]

  *) Fix DEBUG_CGI situation in mod_cgi.c [David MacKenzie] PR#2114

  *) Make sure the input field separator (IFS) shell variable is explicitly
     initialized correctly before _every_ `for' loop and also restored after
     the loops. [Ralf S. Engelschall]

  *) Make sure that "make install" doesn't overwrite the `mime.types' and
     `magic' files from an existing Apache installation. Because people often
     customize these for own MIME and content types.
     [Ralf S. Engelschall]

  *) PORT: Dynamic Shared Object (DSO) support for OpenBSD 2.x
     [Peter Galbavy, Ralf S. Engelschall] PR#2109

  *) Fix the path to the ScoreBoardFile in the install-config target, too.
     [Ralf S. Engelschall] PR#2105

  *) Let "configure" clear out the users parameters (provided as shell
     variables) to avoid side-effects in "src/Configure" when the user
     exported them (which is not needed, but some users do it). 
     [Ralf S. Engelschall] PR#2101

  *) Provide backward compatibility from some old src/Configuration.tmpl
     parameter names to the canonical Autoconf-style shell variable names. For
     instance CFLAGS vs. EXTRA_CFLAGS. The EXTRA_xxx variants are accepted now
     but a hint message is displayed. [Ralf S. Engelschall]
  
  *) Make sure that "make install" doesn't overwrite the DocumentRoot and
     CGI scripts from an existing Apache installation. 
     [Ralf S. Engelschall, Jim Jagielski] PR#2084

  *) Make `configure --compat' more "compatible" by first 
     let the libexecdir default to EPREFIX/libexec instead of EPREFIX/bin and
     second by making sure the "avoid-bristling-suffix" /apache is not
     appended to sysconfdir, datadir, localstatedir and includedir when
     --compat is used. [Ralf S. Engelschall, Lars Eilebrecht]

  *) NeXT required strdup() in support/logresolve.c
     [Francisco Tomei <fatomei@sandburg.unm.edu>] PR#2082

  *) AIX required sys/select.h in support/ab.c
     [Jens Schleusener <Jens.Schleusener@dlr.de>] PR#2081

  *) Fix the path to the MimeMagicFile in the install-config target, too.
     [Ralf S. Engelschall] PR#2089

  *) PORT: Added HP-UX 11 patches [Jeff Earickson <jaearick@colby.edu>]

  *) If you start apache with the -S command line option it will dump
     out the parsed vhost settings.  This is useful for folks trying
     to figure out what is wrong with their vhost configuration.
     (Other dumps may be added in the future.) [Dean Gaudet]

  *) Add %pA, %pI, and %pp codes to ap_vformatter (and hence ap_bprintf,
     ap_snprintf, and ap_psprintf).  See include/ap.h for docs.
     [Dean Gaudet]

  *) Because /usr/local/apache is the default prefix the ``configure
     --compat'' option no longer has to set prefix, again. This way the
     --compat option honors a leading --prefix option. [Lars Eilebrecht]

  *) PORT: Cast the first argument of dlopen() in ap_os_dso_load()
     to `char *' under OSF1 and FreeBSD 2.x where it is defined this way
     to avoid "discard const" warnings. [Ralf S. Engelschall]

  *) If a specific handler is set for a file yet the request still
     ends up being handled by the default handler, log an error
     message before handling it.  This catches things such as trying 
     to use SSIs without mod_include enabled.  [Marc Slemko]

  *) Fix error logging for the startup case where ap_log_error() still uses
     stderr as the target. Now the default log level is honored here, too.
     [Ralf S. Engelschall]
    
  *) PORT: Make sure some AWK's don't fail in src/Configure with "string too
     long" errors when generating the MODULES entry for src/Makefile
     [Ben Hyde, Ralf S. Engelschall]

  *) Make sure src/Configure doesn't complain about the old directory
     /usr/local/etc/httpd/ when APACI is used.  [Lars Eilebrecht]
   
Changes with Apache 1.3b6

  *) PORT: Clean up warnings on Ultrix and HPUX.  [Ben Hyde]
 
  *) Adding DSO support for the HP/UX platform by emulating the dlopen-style
     interface via the similar but proprietary HP/UX shl_xxx-style system
     calls. [Ralf S. Engelschall]

  *) PORT: Updated UnixWare 2.0.x and 2.1.x entries for DSO support and made
     APACI Makefile.tmpl "install" target more robust for sensible UnixWare
     Make. [Ralf S. Engelschall]

  *) ++++ THE BIG SYMBOL RENAMING ++++
     To avoid symbol clashes with third-party code compiled into the server,
     we globally applied the prefix "ap_" to the following classes of
     functions:
        - Apache provided general functions (e.g., ap_cpystrn)
        - Public API functions (e.g., palloc, bgets)
        - Private functions which we can't make static (because of
          cross-object usage) but should be (e.g., new_connection)
     For backward source compatibility a new header file named compat.h was
     created which provides defines for the old symbol names and can be used
     by third-party module authors.
     [The Apache Group]

  *) Added dynamic shared object (DSO) support for SVR4-derivates: The
     problem under SVR4 is that there is no command flag to force the linker
     to export the global symbols of the httpd executable therewith they are
     available to the DSO's. Instead of problematic hacks like creating a
     dummy.so file (containing dummy references to all global symbols) the
     httpd binary is linked against, we use a clean trick stolen from Perl 5:
     Placing the Apache core code itself into a DSO library named libhttpd.so.
     This way the global symbols _HAVE_ to be exported and thus are available
     to any manually loaded DSO's under runtime. To reduce the impact to the
     user to null we go even further and create a stub httpd executable which
     automatically keeps track of the DSO library loading itself and thus
     hides the complete mechanism from the user. Although the generation of
     this DSO library is automatically triggered for platforms which
     essentially need it (mostly all SVR4-derivates) it can be also enabled
     manually via the Rule SHARED_CORE. This can be interesting in the future
     where we perhaps exploit this libhttpd.so mechanism for providing nifty
     features like graceful upgrades, or whatever. 
     [Ralf S. Engelschall, Martin Kraemer]

  *) Build the libraries before building the rest of the tools. [Ben Hyde]

  *) Add "distclean" target to src/-Makefiles to provide "make distclean" also
     inside the src subtree (i.e. for non-APACI users). Following GNU Makefile
     conventions while "clean" removes only stuff created by "all" targets,
     "distclean" additionally removes the stuff from the configuration
     process. This way "make distclean" (hence the name) provides a fresh
     source tree as it was for distribution.
     [Ralf S. Engelschall]

  *) Allow top-level (APACI) Makefile to break on build errors
     the same way the src/ subtree Makefiles breaks on them by replacing the
     initial APACI sed-subdir-display-kludge with a more clean
     variable-passing-solution: variable SDP can optionally hold the subdir
     prefix which is consistently used for displaying the subdir movement.
     This way even the top-level Makefile can stop correctly on errors as the
     user expects. [Ralf S. Engelschall]

  *) Fixed ordering of argument checks for RewriteBase directive.
     [Todd Eigenschink <eigenstr@mixi.net>] PR#2045

  *) Change Win32 IS_MODULE to SHARED_MODULE to match Unix' method of
     indicating that a module is being compiled for dynamic loading. Also
     remove #define IS_MODULE from modules and add SHARED_MODULE define
     to the mak/dsp files. [Alexei Kosut]

  *) Reduce logging level of "normal" warning messages to APLOG_INFO,
     since we are now logging APLOG_WARNING by default. [Roy Fielding]

  *) PORT: OS/2 tweak to deal with multiple .exe targets. [Brian Havard]
 
  *) Add documentation file and src/Configuration.tmpl entry for the
     experimental mod_mmap_static module. Because although it is and marked as
     an experimental one it is distributed and thus should be documented and
     prepared for configuration the same way as all others modules. 
     [Ralf S. Engelschall]

  *) Add query (-q) option to apxs support tool to be able to manually query
     specific settings from apxs. This is needed for instance when you
     manually want to access Apache's header files and you need to assemble
     the -I option.  Now you can do -I`apxs -q INCLUDEDIR`.
     [Ralf S. Engelschall]

  *) Now src/Configure uses a fallback strategy for the shared object support
     on platforms where no explicit information is available: If a Perl
     installation exists we ask it about its shared object support and if it's
     the dlopen-style one we shamelessly guess the compiler and linker flags
     for creating shared objects from Perls knowledge. Of course, the user is
     warning about what we are doing and informed that he should send us
     the guessed flags when they work. [Ralf S. Engelschall]

  *) Provide APACI --without-support option to be able to disable the build
     and installation of the support tools from the src/support/ area.
     Although its useful to have these installed per default we should provide
     a way to compile and install without them for backward-compatibility.
     [Ralf S. Engelschall]

  *) Add of the new APache eXtenSion (apxs) support tool for building and
     installing modules into an _already installed_ Apache package through the
     dynamic shared object (DSO) mechanism [mod_so.c]. The trick here is that
     this approach actually doesn't need the Apache source tree.  The
     (APACI-installed) server package is enough, because this now includes the
     Apache C header files (PREFIX/include) and the new APXS tool
     (SBINDIR/apxs).  The intend is to provide a handy tool for third-party
     module authors to build their Apache modules _OUTSIDE_ the Apache source
     tree while avoiding them to fiddle around with the totally platform
     dependend way of compiling DSO files. The tool supports all ranges of
     modules, from trivial ones (single mod_foo.c) to complex ones (like PHP3
     which has a mod_php3.c plus a pre-built libmodphp3-so.a) and even can
     on-the-fly generate a minimalistic Makefile and sample module for the
     first step to provide both a quick success event and to demonstrate the
     APXS mechanism to module authors. [Ralf S. Engelschall]

  *) Fix core dumps in use of CONNECT in proxy.  
     [Rainer.Scherg@rexroth.de] PR#1326, #1573, #1942

  *) Modify the log directives in httpd.conf-dist files to use CustomLog
     so that users have examples of how CustomLog can be used.
     [Lars Eilebrecht]

  *) Add the new Apache Autoconf-style Interface (APACI) for the top-level of
     the Apache distribution tree.  Until Apache 1.3 there was no real
     out-of-the-box batch-capable build and installation procedure for the
     complete Apache package. This is now provided by a top-level "configure"
     script and a corresponding top-level "Makefile.tmpl" file.  The goal is
     to provide a GNU Autoconf-style frontend which is capable to both drive
     the old src/Configure stuff in batch and additionally installs the
     package with a GNU-conforming directory layout. Any options from the old
     configuration scheme are available plus a lot of new options for flexibly
     customizing Apache. [Ralf S. Engelschall]

  *) The floating point ap_snprintf code wasn't threadsafe.
     Had to remove the HAVE_CVT macro in order to do threadsafe
     calling of the ?cvt() floating point routines.  [Dean Gaudet]

  *) PORT: Add the SCO_SV port. [Jim Jagielski] PR#1962

  *) PORT: IRIX needs the -n32 flag iff using the 'cc' compiler
     [Jim Jagielski] PR#1901

  *) BUG: Configure was using TCC and CC inconsistently. Make sure
     Configure knows which CC we are using. [Jim Jagielski]

  *) "Options +Includes" wasn't correctly merged if "+IncludesNoExec"
     was defined in a parent directory. [Lars Eilebrecht]

  *) API: ap_snprintf() code mutated into ap_vformatter(), which is
     a generic printf-style routine that can call arbitrary output
     routines.  Use this to replace http_bprintf.c.  Add new routines
     psprintf(), pvsprintf() which allocate the exact amount of memory
     required for a string from a pool.  Use psprintf() to clean up
     various bits of code which used ap_snprintf()/pstrdup().
     [Dean Gaudet]

  *) PORT: HAVE_SNPRINTF doesn't do anything any longer.  This is because
     ap_snprintf() has different semantics and formatting codes than
     snprintf().  [Dean Gaudet]

  *) SIGXCPU and SIGXFSZ are now reset to SIG_DFL at boot-time.  This
     is necessary on at least Solaris where the /etc/rc?.d scripts
     are run with these signals ignored, and "SIG_IGN" settings are
     maintained across exec().
     [Rein Tollevik <reint@sys.sol.no>] PR#2009

  *) Fix the check for symbolic links in ``RewriteCond ... -l'': stat() was
     used instead of lstat() and thus this flag didn't work as expected.
     [Rein Tollevik <reint@sys.sol.no>] PR#2010

  *) Fix the proxy pass-through feature of mod_rewrite for the case of
     existing QUERY_STRING now that mod_proxy was recently changed because of
     the new URL parsing stuff. [Ralf S. Engelschall]

  *) A few changes to scoreboard definitions which helps gcc generate
     better code.  [Dean Gaudet]

  *) ANSI C doesn't guarantee that "int foo : 2" in a structure will
     be a signed bitfield.  So mark a few bitfields as signed to
     ensure correct code.  [Dean Gaudet]

  *) The default for HostnameLookups was changed to Off, but there
     was a problem and it wasn't taking effect. [Dean Gaudet]

  *) PORT: Clean up undefined signals on some platforms (SCO, BeOS).
     [Dean Gaudet]

  *) After a SIGHUP the listening sockets in the parent weren't
     properly marked for closure on fork().
     [Jürgen Keil <jk@tools.de>] PR#2000
 
  *) Allow %2F in two situations: 1) it is in the query part of the URI,
     therefore not exposed to %2F -> '/' translations and 2) the request
     is a proxy request, so we're not dealing with a local resource anyway.
     Without this, the proxy would fail to work for any URL's with
     %2f in them (occurs quite often in
     http://.../cgi-bin/...?http%3A%2F%2F... references) [Martin Kraemer]

  *) Protect against FD_SETSIZE mismatches.  [Dean Gaudet]

  *) Make the shared object compilation command more portable by avoiding
     the direct combination of `-c' & `-o' which is not honored by some
     compilers like UnixWare's cc. [Ralf S. Engelschall]

  *) WIN32: the proxy was creating filenames missing the last four
     characters.  While this normally doesn't stop anything from 
     working, it can result in extra collisions.  
     [Tim Costello <tjcostel@socs.uts.edu.au>] PR#1890

  *) Now mod_proxy uses the response string (in addition to the response status
     code) from the already used FTP SIZE command to setup the Content-Length
     header if available. [Ralf S. Engelschall] PR#1183

  *) Reanimated the (still undocumented) proxy receive buffer size directive:
     Renamed from ReceiveBufferSize to ProxyReceiveBufferSize because the old
     name was really too generic, added documentation for this directive to
     the mod_proxy.html and corrected the hyperlink to it in the
     new_features_1.3.html document.  [Ralf S. Engelschall] PR#1348

  *) Fix a bug in the src/helpers/fp2rp script and make it a little bit
     faster [Martin Kraemer]
  
  *) Make Configure die when you give it an unknown command switch.
     [Ben Hyde]

  *) Add five new and fresh manpages for the support programs: dbmmanage.1,
     suexec.8, htdigest.1, rotatelogs.8 and logresolve.8.  Now all up-to-date
     and per default compiled support programs have manual pages - just to
     document our stuff a little bit more and to be able to do really
     Unix-like installations ;-) [Ralf S. Engelschall]

  *) Major cleanups to the Configure script to make it and its generated
     Makefiles again readable and maintainable: add SRCDIR option, removed
     INCLUDES_DEPTH[0-2] kludge, cleanup of TARGET option, cleanup of
     generated sections, consequently added Makefile headers with inheritance
     information, added subdir movement messages for easier following where
     the build process currently stays (more verbose then standard Make, less
     verbose than GNU make), same style to comments in the Configure script,
     added Apache license header, fixed a few bugs, etc. [Ralf S. Engelschall]
     
  *) Add the new ApacheBench program "ab" to src/support/: This is derived
     from the ZeusBench benchmarking program and can be used to determine the
     response performance of an Apache installation. This version is
     officially licensed with Zeus Technology, Ltd. See the license agreement
     statements in <199803171224.NAA24547@en1.engelschall.com> in apache-core.
     [Ralf S. Engelschall]

  *) API: Various core functions that are definately not part of the API
     have been made static, and a few have been marked API_EXPORT.  Still
     more have been marked CORE_EXPORT and are not intended for general
     use by modules.  [Doug MacEachern, Dean Gaudet]

  *) mod_proxy was not clearing the Proxy-Connection header from
     requests; now it does.  This did not violate any spec, however 
     causes poor interactions when you are talking to remote proxies.  
     [Marc Slemko] PR#1741

  *) Various cleanups to the command line interface and manual pages.
     [Ralf S. Engelschall]

  *) cfg_getline() was not properly handling lines that did not end
     with a line termination character.  [Marc Slemko] PR#1869, 1909

  *) Performance tweak to mod_log_config.  [Dmitry Khrustalev]

  *) Clean up some undocumented behavior of mod_setenvif related to
     "merging" two SetEnvIf directives when they match the same header
     and regex.  Document that mod_setenvif will perform comparisons in
     the order they appear in the config file.  Optimize mod_setenvif by
     doing more work at config time rather than at runtime.
     [Dean Gaudet]

  *) src/include/ap_config.h now wraps it's #define's with #ifndef/#endif's
     to allow for modules to overrule them and to reduce redefinition
     warnings [Jim Jagielski]

  *) [PORT] For A/UX change the OS-#define for -DAUX to -DAUX3.
     [Jim Jagielski]

  *) Making the hard-coded cross-module function call mime_find_ct() (from
     mod_proxy to mod_mime) obsolete by making sure the API hook for MIME type
     checking is really called even for proxy requests except for URLs with
     HTTP schemes (because there we can optimize by not running the type
     checking hooks due to the fact that the proxy gets the MIME Content-type
     from the remote host later). This change cleans up mod_mime by removing
     the ugly export kludge, makes the one-liner file mod_mime.h obsolete, and
     especially unbundles mod_proxy and mod_mime. This way they both now can
     be compiled as shared objects and are no longer tied together. 
     [Ralf S. Engelschall]

  *) util.c cleanup and speedup. [Dean Gaudet]

  *) API: Clarification, pstrndup() will always copy n bytes of the source
     and NUL terminate at the (n+1)st byte.  [Dean Gaudet]

  *) Mark module command_rec and handler_rec structures const so that they
     end up in the read-only data section (and are friendlier to systems
     that don't do optimistic memory allocation on fork()). [Dean Gaudet]

  *) Add check to the "Port" directive to make sure the specified 
     port is in the appropriate range.  [Ben Hyde]

  *) Performance improvements to invoke_handler().
     [Dmitry Khrustalev <dima@bog.msu.su>]

  *) Added support for building shared objects even for library-style modules
     (which are built from more than one object file). This now provides the
     ability to build mod_proxy as a shared object module. Additionally
     modules like mod_example are now also supported for shared object
     building because the generated Makefiles now no longer assume there is at
     least one statically linked module. [Ralf S. Engelschall]

  *) API: Clarify usage of content_type, handler, content_encoding,
     content_language and content_languages fields in request_rec.  They
     must always be lowercased; and the strings pointed to shouldn't
     be modified (you must copy them to modify them).  Fix a few bugs
     related to this.  [Dean Gaudet]

  *) API: Clarification: except for RAW_ARGS, all command handlers can
     treat the char * parameters as permanent, and modifiable.  There
     is no need to pstrdup() them.  Clean up some needless pstrdup().
     [Dean Gaudet]

  *) Now mod_so keeps track of which module shared objects with which names
     are loaded and thus avoids multiple loading and unloading and irritating
     error_log messages. [Ralf S. Engelschall]

  *) Prior to the existence of mod_setenv it was necessary to tweak the TZ
     environment variable in the apache core.  But that tweaking interferes
     with mod_setenv.  So don't tweak if the user has specified an explicit
     TZ variable.  [Jay Soffian <jay@cimedia.com>] PR#1888

  *) rputs() did not calculate r->sent_bodyct properly.
     [Siegmund Stirnweiss <siegst@kat.ina.de>] PR#1900

  *) The CGI spec says that REMOTE_HOST should be set to the remote hosts's
     name, or left unset if this value is unavailable.  Apache was setting
     it to the IP address when unavailable.
     [Tony Finch <fanf@demon.net>] PR#1925

  *) Various improvements to the configuration and build support for compiling
     modules as shared objects. Especially Solaris 2.x, SunOS 4.1, IRIX and
     OSF1 support with GCC and vendor compilers was added.  This way shared
     object support is now provided out-of-the-box for FreeBSD, Linux,
     Solaris, SunOS, IRIX and OSF1. In short: On all major platforms!
     [Ralf S. Engelschall]

  *) Minor cleanup in http_main -- split QNX and OS2 specific "mmap"
     scoreboard code into separate #defines -- USE_POSIX_SCOREBOARD
     and USE_OS2_SCOREBOARD.  [Dean Gaudet]

  *) Fix one more special locking problem for RewriteMap programs in
     mod_rewrite: According to the documentation of flock(), "Locks are on
     files, not file descriptors.  That is, file descriptors duplicated
     through dup(2) or fork(2) do not result in multiple instances of a lock,
     but rather multiple references to a single lock. If a process holding a
     lock on a file forks and the child explicitly unlocks the file, the
     parent will lose its lock.". To overcome this we have to make sure the
     RewriteLock file is opened _AFTER_ the childs were spawned which is now
     the case by opening it in the child_init instead of the module_init API
     hook. [Ralf S. Engelschall] PR#1029

  *) Change to Location and LocationMatch semantics.  LocationMatch no
     longer lets a single slash match multiple adjacent slashes in the
     URL.  This change is for consistency with RewriteRule and
     AliasMatch.  Multiple slashes have meaning in URLs that they do
     not have in (some) filesystems.  Location on the other hand can
     be considered a shorthand for a more complicated regex, and it
     does match multiple slashes with a single slash -- which is
     also consistent with the Alias directive.
     [Dean Gaudet] related PR#1440

  *) Fix bug with mod_mime_magic causing certain files, including files
     of length 0, to result in no response from the server.
     [Dean Gaudet]

  *) The Configure script now generates src/include/ap_config.h which
     contains the set of defines used when Apache is compiled on a platform.
     This file can then be included by external modules before including
     any Apache header files in case they are being built separately from
     Apache.  Along with this change, a couple of minor changes were
     made to make Apache's #defines coexist peacefully with any autoconf
     defines an external module might have. [Rasmus Lerdorf]

  *) Fix mod_rewrite for the ugly API case where <VirtualHost> sections exist
     but without any RewriteXXXXX directives. Here mod_rewrite is given no
     chance by the API to initialize its per-server configuration and thus
     receives the wrong one from the main server. This is now avoided by
     remembering the server together with the config structure while
     configuring and later assuming there is no config when we see a
     difference between the remembered server and the one calling us. 
     [Ralf S. Engelschall] PR#1790

  *) Fixed the DBM RewriteMap support for mod_rewrite: First the support now
     is automatically disabled under configure time when the dbm_xxx functions
     are not available. Second, two heavy source code errors in the DBM
     support code were fixed.  This makes DBM RewriteMap's usable again after
     a long time of brokenness. [Ralf S. Engelschall] PR#1696

  *) Now all configuration files support Unix-style line-continuation via 
     the trailing backslash ("\") character. This enables us to write down
     complex or just very long directives in a more readable way.  The
     backslash character has to be really the last character before the
     newline and it has not been prefixed by another (escaping) backslash.
     [Ralf S. Engelschall]

  *) When using ProxyPass the ?querystring was not passed correctly.
     [Joel Truher <truher@wired.com>]

  *) To deal with modules being compiled and [dynamically] linked
     at a different time from the core, the SERVER_VERSION and
     SERVER_BUILT symbols have been abstracted through the new
     API routines apapi_get_server_version() and apapi_get_server_built().
     [Ken Coar]  PR#1448

  *) WIN32: Preserve trailing slash in canonical path (and hence
     in PATH_INFO). [Paul Sutton, Ben Laurie]

  *) PORT: USE_PTHREAD_SERIALIZED_ACCEPT has proven unreliable
     depending on the rev of Solaris and what mixture of modules
     are in use.  So it has been disabled, and Solaris is back to
     using USE_FCNTL_SERIALIZED_ACCEPT.  Users may experiment with
     USE_PTHREAD_SERIALIZED_ACCEPT at their own risk, it may speed
     up static content only servers.  Or it may fail unpredictably.
     [Dean Gaudet] PR#1779, 1854, 1904

  *) mod_test_util_uri.c created which tests the logic in util_uri.c.
     [Dean Gaudet]

  *) API: Rewrite of absoluteURI handling, and in particular how
     absoluteURIs match vhosts.  Unless a request is a proxy request, a
     "http://host" url is treated as if a similar "Host:" header had been
     supplied.  This change was made to support future HTTP/1.x protocols
     which may require clients to send absoluteURIs for all requests.

     In order to achieve this change subtle changes were made to the API.  In a
     request_rec, r->hostlen has been removed.  r->unparsed_uri now exists so
     that the unmodified uri can be retrieved easily.  r->proxyreq is not set
     by the core, modules must set it during the post_read_request or
     translate_names phase.

     Plus changes to the virtualhost test suite for absoluteURI testing.

     This fixes several bugs with the proxy proxying requests to vhosts
     managed by the same httpd.
     [Dean Gaudet]

  *) API: Cleanup of code in http_vhost.c, and remove vhost matching
     code from mod_rewrite.  The vhost matching is now performed by a
     globally available function matches_request_vhost().  [Dean Gaudet]

  *) Reduce memory usage, and speed up ServerAlias support.  As a
     side-effect users can list multiple ServerAlias directives
     and they're all considered.
     [Chia-liang Kao <clkao@cirx.org>] PR#1531

  *) The "poly" directive in image maps did not include the borders of the
     polygon, whereas the "rect" directive does.  Fix this inconsistency.
     [Konstantin Morshnev <moko@design.ru>] PR#1771

  *) Make \\ behave as expected.  [Ronald.Tschalaer@psi.ch]

  *) Add the `%a' construct to LogFormat and CustomLog to log the client IP
     address. [Todd Eigenschink <eigenstr@mixi.net>] PR#1885

  *) API: A new source module main/util_uri.c; It contains a routine
     parse_uri_components() and friends which breaks a URI into its component
     parts.  These parts are stored in a uri_components structure called
     parsed_uri within each request_rec, and are available to all modules.
     Additionally, an unparse routine is supplied which re-assembles the URI
     components back to an URI, optionally hiding the username:password@ part
     from ftp proxy requests, and other useful routines.  Within the structure,
     you find on a ready-for-use basis:
        scheme;     /* scheme ("http"/"ftp"/...) */
        hostinfo;   /* combined [user[:password]@]host[:port] */
        user;       /* user name, as in http://user:passwd@host:port/ */
        password;   /* password, as in http://user:passwd@host:port/ */
        hostname;   /* hostname from URI (or from Host: header) */
        port_str;   /* port string (integer representation is in "port") */
        path;       /* the request path (or "/" if only scheme://host was given) */
        query;      /* Everything after a '?' in the path, if present */
        fragment;   /* Trailing "#fragment" string, if present */
     This is meant to serve as the platform for *BIG* savings in
     code complexity for the proxy module (and maybe the vhost logic).
     [Martin Kraemer]

  *) Make all possible meta-construct expansions ($N, %N, %{NAME} and
     ${map:key}) available for all location where a string is created in
     mod_rewrite rewriting rulesets: 1st arg of RewriteCond, 2nd arg of
     RewriteRule and for the [E=NAME:STRING] flag of RewriteRule. This way the
     possible expansions are consequently usable at all string creation
     locations. [Ralf S. Engelschall]

  *) Fix initialization of RewriteLogLevel (default now is 0 as documented 
     and not 1) and the per-virtual-server merging of directives. Now all
     directives except `RewriteEngine' and `RewriteOption' are either
     completely overridden (default) or completely inherited (when
     `RewriteOptions inherit') is used. [Ralf S. Engelschall] PR#1325

  *) Fix `RewriteMap' program lookup in situations where such maps are
     defined but disabled (`RewriteEngine off') in per-server context. 
     [Ralf S. Engelschall] PR#1431

  *) Fix bug introduced in 1.3b4-dev, config with no Port setting would cause
     server to bind to port 0 rather than 80.  [Dean Gaudet]

  *) Fix long-standing problem with RewriteMap _programs_ under Unix derivates
     (like SunOS and FreeBSD) which don't accept the locking of pipes
     directly.  A new directive RewriteLock is introduced which can be used to
     setup a separate locking file which then is used for synchronization.
     [Ralf S. Engelschall] PR#1029

  *) WIN32: The server root is obtained from the registry key
     HKLM\SOFTWARE\Apache Group\Apache\<version> (version is currently
     "1.3 beta"), unless overridden by the -d command line flag. The
     value is stored by running "apache -i -d serverroot". [Paul Sutton]

  *) Merged os/win32/mod_dll.c into modules/standard/mod_so.c to support
     dynamic loading on Win32 and Unix via the same module. [Paul Sutton]

  *) Now mod_rewrite no longer makes problematic assumptions on the characters
     a username can contain when trying to expand it via /etc/passwd. 
     [Ralf S. Engelschall]

  *) The mod_setenvif BrowserMatch backwards compatibility command did not
     work properly with spaces in the regex.  [Ronald Tschalaer] PR#1825

  *) Add new RewriteMap types: First, `rnd' which is equivalent to the `txt'
     type but with a special post-processing for the looked-up value: It
     parses it into alternatives according to `|' chars and then only one
     particular alternative is chosen randomly (this is an essential
     functionality needed for balancing between backend-servers when using
     Apache as a Reverse Proxy.  The looked up value here is a list of
     servers). Second, `int' with the built-in maps named `tolower' and
     `toupper' which can be used to map URL parts to a fixed case (this is an
     essential feature to fix the case of server names when doing mass
     virtual-hosting with the help of mod_rewrite instead of using
     <VirtualHost> sections). [Ralf S. Engelschall, parts based on code from
     Jay Soffian <jay@cimedia.com>] PR#1631

  *) Add a new directive to mod_proxy similar to ProxyPass: `ProxyPassReverse'.
     This directive lets Apache adjust the URL in Location-headers on HTTP
     redirect responses sent by the remote server. This way the virtually
     mapped area is no longer left on redirects and thus by-passed which is
     especially essential when running Apache as a reverse proxy.  
     [Ralf S. Engelschall]

  *) Hide Proxy-Authorization from CGI/SSI/etc just like Authorization is
     hidden. [Alvaro Martinez Echevarria]

  *) Apache will, when started with the -X (single process) debugging flag,
     honor the SIGINT or SIGQUIT signals again now. This capability got lost
     a while ago during OS/2 signal handling changes.

  *) [PORT] Work around the fact that NeXT runs on more than the
     m68k chips in mod_status [Scott Anguish and Timothy Luoma
     <luomat@peak.org>]

  *) [PORT] Recognize FreeBSD versions so we can use the OS regex as well
     as handling unsigned-chars for FreeBSD v3 and v2 [Andrey Chernov
     <ache@nagual.pp.ru> and Jim] PR#1450

  *) Use SA_RESETHAND or SA_ONESHOT when installing the coredump handlers.
     In particular the handlers could trigger themselves into an infinite
     loop if RLimitMem was used with a small amount of memory -- too small
     for the signal stack frame to be set up.  [Dean Gaudet]

  *) Fix problems with absoluteURIs introduced during 1.3b4.  [Dean Gaudet,
     Alvaro Martinez Echevarria <alvaro@lander.es>]

  *) Fix multiple UserDir problem introduced during 1.3b4-dev.
     [Dean Gaudet] PR#1850

  *) ap_cpystrn() had an off-by-1 error.
     [Charles Fu <ccwf@klab.caltech.edu>] PR#1847

  *) API: As Ken suggested the check_cmd_context() function and related
     defines are non-static now so modules can use 'em.  [Martin Kraemer]

  *) mod_info would occasionally produce an unpaired <tt> in its
     output. Fixed. [Martin Kraemer]

  *) By default AIX binds a process (and it's children) to a single
     processor.  httpd children now unbind themselves from that cpu
     and re-bind to one selected at random via bindprocessor()
     [Doug MacEachern]

  *) Linux 2.0 and above implement RLIMIT_AS, RLIMIT_DATA has almost no
     effect.  Work around it by using RLIMIT_AS for the RLimitMEM
     directive.  [Enrik Berkhan <enrik@inka.de>] PR#1816

  *) mod_mime_magic error message should indicate the filename when
     reads fail.  ["M.D.Parker" <mdpc@netcom.com>] PR#1827

  *) Previously Apache would permit </Files> to end <FilesMatch> (and
     similary for Location and Directory), now this is diagnosed as an
     error.  Improve error messages for mismatched sections (<Files>,
     <FilesMatch>, <Directory>, <DirectoryMatch>, ...).
     [Dean Gaudet, Martin Kraemer]

  *) <Files> is not permitted within <Location> (because of the
     semantic ordering).  [Dean Gaudet] PR#379

  *) <Files> with wildcards was broken by the change in wildcard
     semantics (* does not match /).  To fix this, <Files> now
     apply only to the basename of the request filename.  This
     fixes some other inconsistencies in <Files> semantics
     (such as <Files a*b> not working).  [Dean Gaudet] PR#1817

  *) Removed bogus "dist.tar" target from Makefile.tmpl and make sure
     backup files are removed on "clean" target [Ralf S. Engelschall]

  *) PORT: Add -lm to LIBS for HPUX.  [Dean Gaudet] PR#1639

  *) Various errors from select() and accept() in child_main() would
     result in an infinite loop.  It seems these two tickle kernel
     or library bugs occasionally, and result in log spammage and
     a generally bad scene.  Now the child exits immediately,
     which seems to be a good workaround.
     [Dean Gaudet] PR#1747, 1107, 588, 1787, 987, 588

  *) Cleaned up some race conditions in unix child_main during
     initialization. [Dean Gaudet]

  *) SECURITY: "UserDir /abspath" without a * in the path would allow
     remote users to access "/~.." and bypass access restrictions
     (but note /~../.. was handled properly).
     [Lauri Jesmin <jesmin@ut.ee>] PR#1701

  *) API: os_is_path_absolute() now takes a const char * instead of a char *.
     [Dean Gaudet]

Changes with Apache 1.3b5

  *) Source file dependencies in Makefile.tmpl files throughout the
     source tree were updated to accurately reflect reality.
     [Dean Gaudet]

  *) Preserve the content encoding given by the AddEncoding directive
     when the client doesn't otherwise specify an encoding.
     [Ronald Tschalaer <Ronald.Tschalaer@psi.ch>]

  *) Sort out problems with canonical filename handling happening too late.
     [Dean Gaudet, Ben Laurie]

Changes with Apache 1.3b4

  *) The module structure was modified to include a *dynamic_load_handle
     in the STANDARD_MODULE_STUFF portion, and the MODULE_MAGIC_NUMBER
     has been bumped accordingly.  [Paul Sutton]

  *) All BrowserMatch directives mentioned in
     htdocs/manual/known_client_problems.html are in the default
     configuration files.  [Lars Eilebrecht]

  *) MiNT port update. [Jan Paul Schmidt]

  *) HTTP/1.1 requires x-gzip and gzip encodings be treated
     equivalent, similarly for x-compress and compress.  Apache
     now ignores a leading x- when comparing encodings.  It also
     preserves the encoding the client requests (for example if
     it requests x-gzip, then Apache will respond with x-gzip
     in the Content-Encoding header).
     [Ronald Tschalaer <Ronald.Tschalaer@psi.ch>] PR#1772

  *) Fix a memory leak on keep-alive connections.  [Igor Tatarinov]

  *) Added mod_so module to support dynamic loading of modules on Unix
     (like mod_dld for Win32). This replaces mod_dld.c. Use SharedModule
     instead of AddModule in Configuration to build shared modules
     [Sameer Parekh, Paul Sutton]

  *) Minor cleanups to r->finfo handling in some modules.
     [Dean Gaudet]

  *) Abstract read()/write() to ap_read()/ap_write().
     Makes it easier to add other types of IO code such as SFIO.
     [Randy Terbush]

  *) API: Generalize default_port manipulations to make support of
     different protocols easier. [Ben Laurie, Randy Terbush]

  *) There are many cases where users do not want Apache to form
     self-referential urls using the "canonical" ServerName and Port.
     The new UseCanonicalName directive (default on), if set to off
     will cause Apache to use the client-supplied hostname and port.
     API: Part of this change required a change to the construct_url()
     prototype; and the addition of get_server_name() and
     get_server_port().
     [Michael Douglass <mikedoug@texas.net>, Dean Gaudet]
     PR#315, 459, 485, 1433

  *) Yet another rearrangement of the source tree.. now all the common
     header files are in the src/include directory.  The -Imain -Iap
     references in Makefiles have been changed to the simpler -Iinclude
     instead.  In addition to simplifying the build a little bit, this
     also makes it clear when a module is referencing something in a
     other than kosher manner (e.g., the proxy including mod_mime.h).
     Module-private header files (the proxy, mod_mime, the regex library,
     and mod_rewrite) have not been moved to src/include; nor have
     the OS-abstraction files.  [Ken Coar]

  *) Fix a bug where r->hostname didn't have the :port stripped
     from it.  [Dean Gaudet]

  *) Tweaked the headers_out table size, and the subprocess_env
     table size guess in rename_original_environment().  Added
     MAKE_TABLE_PROFILE which can help discover make_table()
     calls that use too small an initial guess, see alloc.c.
     [Dean Gaudet]

  *) Options and AllowOverride weren't properly merging in the main
     server setting inside vhosts (only an issue when you have no
     <Directory> or other section containing an Options that affects
     a request).  Options +foo or -foo in the main_server wouldn't
     affect the main_server's lookup defaults.  [Dean Gaudet]

  *) Variable 'cwd' was being used pointlessly before being set.
     [Ken Coar] PR#1738

  *) r->allowed handling cleaned up in the standard modules.
     [Dean Gaudet]

  *) Some case-sensitivity issues cleaned up to be consistent with
     RFC2068.  [Dean Gaudet]

  *) SIGURG doesn't exist everywhere.
     [Mark Andrew Heinrich <heinrich@tinderbox.Stanford.EDU>]

  *) mod_unique_id was erroneously generating a second unique id when
     an internal redirect occured.  Such redirects occur, for example,
     when processing a DirectoryIndex match.  [Dean Gaudet]

  *) API: table_add, table_merge, and table_set include implicit pstrdup()
     of the key and value.  But in many cases this is not required
     because the key/value is a constant, or the value has been built
     by pstrcat() or other similar means.  New routines table_addn,
     table_mergen, and table_setn have been added to the API, these
     routines do not pstrdup() their arguments.  The core code and
     standard modules were changed to take advantage of these routines.
     The resulting server is up to 20% faster in some situations.

     Note that it is easy to get code subtly wrong if you pass a key/value
     which is in a pool other than the pool of the table.  The only
     safe thing to do is to pass key/values which are in the pool of
     the table, or in one of the ancestors of the pool of the table.
     i.e. if the table is part of a subrequest, a value from the main
     request's pool is OK since the subrequest pool is a sub_pool of the
     main request's pool (and therefore has a lifespan at most as long as
     the main pool).  There is debugging code which can detect improper
     usage, enabled by defining POOL_DEBUG.  See alloc.c for more details.
     [Dmitry Khrustalev <dima@bog.msu.su>, Dean Gaudet]

  *) More mod_mime_magic cleanup:  fewer syscalls; should handle "files"
     which don't exist on disk more gracefully; handles vhosts properly.
     Update documentation to reflect the code -- if there's no
     MimeMagicFile directive then the module is not enabled.
     [Dean Gaudet]

  *) PORT: Some older *nix dialects cannot automatically start scripts
     which begin with a #! interpreter line (the shell starts the scripts
     appropriately on these platforms). Apache now supports starting of
     "hashbang-scripts" when the NEED_HASHBANG_EMUL define is set.
     [Martin Kraemer, with code from peter@zeus.dialix.oz.au (Peter Wemm)
     taken from tcsh]

  *) API: "typedef array_header table" removed from alloc.h, folks should
     have been writing to use table as if it were an opaque type, but even
     some standard modules got this wrong.  By changing the definition
     to "typedef struct table table" module authors will receive compile
     time warnings that they're doing the wrong thing.  This change
     facilitates future changes with more sophisticated table
     structures.  Specifically, module authors should be using table_elts()
     to get access to an array_header * for the table. [Dean Gaudet]

  *) API: Renamed new_connection() to avoid namespace collision with LDAP
     library routines.  [Ken Coar, Rasmus Lerdorf]

  *) WIN32: mod_speling is now available on the Win32 platform.
     [Marc Slemko]

  *) For clarity the following compile time definition was changed:

        SAFE_UNSERIALIZED_ACCEPT  ->   SINGLE_LISTEN_UNSERIALIZED_ACCEPT

     Also, for example, HAVE_MMAP would mean to use mmap() scoreboards
     and not be a general notice that the OS has mmap(). Now the
     HAVE_MMAP/SHMGET #defines strictly are informational that the
     OS has that method of shared memory; the type to use for
     the scoreboard is a seperate #define (USE_MMAP_SCOREBOARD
     and USE_SHMGET_SCOREBOARD). This allows outside modules to
     determine if shared memory is available and allows Apache
     to determine the best method to use for the scoreboard.
     [Jim Jagielski]

  *) PORT: UnixWare 2.1.2 SMP appears to require USE_FCNTL_SERIALIZED_ACCEPT,
     as do various earlier versions.  It should be safe on all versions.
     Unixware 1.x appears to have the same SIGHUP bug as solaris does with
     the slack code.  A few other cleanups for Unixware.
     [Tom Hughes <thh@cyberscience.com>] PR#1082, PR#1282, PR#1499, PR#1553

  *) PORT: A/UX can handle single-listen accepts without mutex
     locking, so we add SINGLE_LISTEN_UNSERIALIZED_ACCEPT. [Jim Jagielski]

  *) When die() happens we need to eat any request body if one exists.
     Otherwise we can't continue with a keepalive session.  This shows up
     as a POST problem with MSIE 4.0, typically against pages which are
     authenticated.  [Roy Fielding] PR#1399

  *) If you define SECURITY_HOLE_PASS_AUTHORIZATION then the Authorization
     header will be passed to CGIs.  This is generally a security hole, so
     it's not a default.  [Marc Slemko] PR#549

  *) Fix Y2K problem with date printing in suexec log.
     [Paul Eggert <eggert@twinsun.com>] PR#1343

  *) WIN32 deserves a pid file.  [Ben Hyde]

  *) suexec errors now include the errno/description.  [Marc Slemko] PR#1543

  *) PORT: OSF/1 now uses USE_FLOCK_SERIALIZED_ACCEPT to solve PR#467.
     The choice of flock vs. fcntl was made based on timings which showed that
     even on non-NFS, non-exported filesystems fcntl() was an order of
     magnitude slower.  It also uses SINGLE_LISTEN_UNSERIALIZED_ACCEPT so
     that single socket users will see no difference. [Dean Gaudet] PR#467

  *) "File does not exist" error message was erroneously including the
     errno.  [Marc Slemko]

  *) Improve the warning message generated when a client drops the
     connection (hits stop button, etc.) during a send.  [Roy Fielding]

  *) Defining GPROF will disable profiling in the parent and enable it
     in the children.  If you're profiling under Linux this is pretty much
     necessary because SIGPROF is lost across a fork(). [Dean Gaudet]

  *) htdigest and htpasswd needed slight tweaks to work on OS/2 and WIN32.
     [Brian Havard]

  *) The NeXT cc (which is gcc hacked up) doesn't appear to support some
     gcc functionality.  Work around it.
     [Keith Severson <keith@sssd.navy.mil>] PR#1613

  *) Some linkers complain when .o files contain no functions.
     [Keith Severson <keith@sssd.navy.mil>] PR#1614

  *) Some const declarations in mod_imap.c that were added for debugging
     purposes caused some compilers heartburn without adding any
     significant value, so they've been removed.  [Ken Coar]

  *) The src/main/*.h header files have had #ifndef wrappers added to
     insulate them against duplicate calls if they get included through
     multiple paths (e.g., in .c files as well as other .h files).
     [Ken Coar]

  *) The libap routines now have a header file for their prototypes,
     src/ap/ap.h, to ease their use in non-httpd applications.  [Ken Coar]

  *) mod_autoindex with a plaintext header file would emit the <PRE>
     start-tag before the HTML preamble, rather than after the preamble
     but before the header file contents.  [John Van Essen <jve@gamers.org>]
     PR#1667

  *) SECURITY: Fix a possible buffer overflow in logresolve.  This is
     only an issue on systems without a MAXDNAME define or where
     the resolver returns domain names longer than MAXDNAME.  [Marc Slemko]

  *) SECURITY: Eliminate possible buffer overflow in cfg_getline, which
     is used to read various types of files such as htaccess and
     htpasswd files.  [Marc Slemko]

  *) SECURITY: Ensure that the buffer returned by ht_time is always
     properly null terminated.  [Marc Slemko]

  *) The "Connection" header could be sent back with multiple "close"
     tokens.  Not an error, but a waste.
     [Ronald.Tschalaer@psi.ch] PR#1683

  *) mod_rewrite's RewriteLog should behave like mod_log_config, it
     shouldn't force hostname lookups.  [Dean Gaudet] PR#1684

  *) "basic" auth needs a case-insensitive comparison.
     [Ronald.Tschalaer@psi.ch] PR#1666

  *) For maximum portability, the environment passed to CGIs should
     only contain variables whose names match the regex
     /[a-zA-Z][a-zA-Z0-9_]*/.  This is now enforced by stamping
     underscores over any character outside the regex.  This
     affects HTTP_* variables, in a way that should be backward
     compatible for all the standard headers; and affects variables
     set with SetEnv/BrowserMatch and similar directives.
     [Dean Gaudet]

  *) mod_speling returned incorrect HREF's when an ambigous match
     was found. Noticed by <robinton@amtrash.comlink.de> (Soeren Ziehe)
     [robinton@amtrash.comlink.de (Soeren Ziehe), Martin Kraemer]

  *) PORT: Apache now compiles & runs on an EBCDIC mainframe
     (the Siemens BS2000/OSD family) in the POSIX subsystem
     [Martin Kraemer]

  *) PORT: Fix problem killing children when terminating.  Allow ^C
     to shut down the server.  [Brian Havard]

  *) pstrdup() is implicit in calls to table_* functions, so there's
     no need to do it before calling.  Clean up a few cases.
     [Marc Slemko, Dean Gaudet]

  *) new -C and -c command line arguments
     usage:
     -C "directive" : process directive before reading config files
     -c "directive" : process directive after reading config files
     example:
     httpd -C "PerlModule Apache::httpd_conf"
     [Doug MacEachern, Martin Kraemer]

  *) WIN32: Fix the execution of CGIs that are scripts and called 
     with path info that does not have an '=' in.
     (eg. http://server/cgi-bin/printenv?foobar)  
     [Marc Slemko] PR#1591

  *) WIN32: Fix a call to os_canonical_filename so it doesn't try to 
     mess with fake filenames.  This fixes proxy caching on 
     win32. PR#1265

  *) SECURITY: General mod_include cleanup, including fixing several
     possible buffer overflows and a possible infinite loop.
     [Dean Gaudet, Marc Slemko]

  *) SECURITY: Numerous changes to mod_imap in a general cleanup
     including fixing a possible buffer overflow.  [Dean Gaudet]

  *) WIN32: overhaul of multithreading code. Shutdowns are now graceful
     (connections are not dropped). Code can handle graceful restarts
     (but there is as yet no way to signal this to Apache). Various
     other cleanups. [Paul Sutton]

  *) The aplog_error changes specific to 1.3 introduced a buffer
     overrun in the (now legacy) log_printf function.  Fixed.
     [Dean Gaudet]

  *) mod_digest didn't properly deal with proxy authentication.  It
     also lacked a case-insensitive comparision of the "Digest"
     token.  [Ronald Tschalaer <Ronald.Tschalaer@psi.ch>] PR#1599

  *) A few cleanups in mod_status for efficiency.  [Dean Gaudet]

  *) A few cleanups in mod_info to make it thread-safe, and remove an
     off-by-5 bug that could hammer \0 on the stack. [Dean Gaudet]

  *) no2slash() was O(n^2) in the length of the input.  Make it O(n).
     [Dean Gaudet]

  *) API: migration from strncpy() to our "enhanced" version called
     ap_cpystrn() for performance and functionality reasons.
     Located in libap.a.  [Jim Jagielski]

  *) table_set() and table_unset() did not deal correctly with
     multiple occurrences of the same key.
     [Stephen Scheck <sscheck@infonex.net>, Ben Laurie] PR#1604

  *) The AuthName must now be enclosed in quotes if it is to contain
     spaces.  [Ken Coar] PR#1195

  *) API: new function: ap_escape_quotes(). [Ken Coar] PR#1195

  *) WIN32: Work around optimiser bug that killed ISAPI in release
     versions. [Ben Laurie] PR#1533

  *) PORT: Update the MPE port [Mark Bixby, Jim Jagielski]

  *) Interim (slow) fix for p->sub_pool critical sections in
     alloc.c (affects win32 only).  [Ben Hyde]

  *) non-WIN32 was missing destroy_mutex definition.  [Ben Hyde]

  *) send_fd_length() did not calculate total_bytes_sent properly.
     [Ben Reser <breser@regnow.com>] PR#1366

  *) The bputc() macro was not properly integrated with the chunking
     code; in many cases modules using bputc() could cause completely
     bogus chunked output.  (Typically this will show up as problems
     with Internet Explorer 4.0 reading a page, but other browsers
     having no problem.) [Dean Gaudet]

  *) Create LARGE_WRITE_THRESHOLD define which determines how many
     bytes have to be supplied to bwrite() before it will consider
     doing a writev() to assemble multiple buffers in one system
     call.  This is critical for modules such as mod_include,
     mod_autoindex, mod_php3 which all use bputc()/bputs() of smaller
     strings in some cases.  The result would be extra effort
     setting up writev(), and in many cases extra effort building
     chunks.  The default is 31, it can be overriden at compile
     time. [Dean Gaudet]

  *) Move the gid switching code into the child so that log files
     and pid files are opened with the root gid.
     [Gregory A Lundberg <lundberg@vr.net>]

  *) WIN32: Check for binaries by looking for the executable header
     instead of counting control characters.
     [Jim Patterson <Jim.Patterson@Cognos.COM>] PR#1340

  *) ap_snprintf() moved from main/util_snprintf.c to ap/ap_snprintf.c
     so the functionality is available to applications other than the
     server itself (like the src/support tools).  [Ken Coar]

  *) ap_slack() moved out of main/util.c into ap/ap_slack.c as part of
     the libap consolidation work.  [Ken Coar]

  *) ap_snprintf() with a len of 0 behaved like sprintf().  This is not
     useful, and isn't what the standards require.  Now it returns 0
     and writes nothing.  [Dean Gaudet]

  *) When an error occurs in fcntl() locking suggest the user look up
     the docs for LockFile.  [Dean Gaudet]

  *) Eliminate some dead code from writev_it_all().
     [Igor Tatarinov <tatarino@prairie.NoDak.edu>]

  *) mod_autoindex had an fread() without checking the result code.
     It also wouldn't handle "AddIconByType (TXT,/icons/text.gif text/*"
     (note the missing closing paren) properly.  [Dean Gaudet]

  *) It appears the "257th byte" bug (see
     htdocs/manual/misc/known_client_problems.html#257th-byte) can happen
     at the 256th byte as well.  Fixed.  [Dean Gaudet]

  *) PORT: Fix mod_mime_magic under OS/2, no support for block devices.
     [Brian Havard]

  *) Fix memory corruption caused by allocating auth usernames in the
     wrong pool.  [Dean Gaudet] PR#1500

  *) Fix an off-by-1, and an unterminated string error in
     mod_mime_magic.  [Dean Gaudet]

  *) Fix a potential SEGV problem in mod_negotiation when dealing
     with type-maps.  [Dean Gaudet]

  *) Better glibc support under Linux.  [Dean Gaudet] PR#1542

  *) "RedirectMatch gone /" would cause a SIGSEGV. [Dean Gaudet] PR#1319

  *) WIN32: avoid overflows during file canonicalisations.
     [malcolm@mgdev.demon.co.uk] PR#1378

  *) WIN32: set_file_slot() didn't detect absolute paths. [Ben Laurie]
     PR#1511, 1508

  *) WIN32: mod_status display header didn't match fields. [Ben Laurie]

  *) The pthread_mutex_* functions return an error code, and don't
     set errno.  [Igor Tatarinov <tatarino@prairie.NoDak.edu>]

  *) WIN32: Allow spaces to prefix the interpreter in #! lines.
     [Ben Laurie] PR#1101

  *) WIN32: Cure file leak in CGIs. [Peter Tillemans <pti@net4all.be>] PR#1523

  *) proxy_ftp: the directory listings generated by the proxy ftp module
     now have a title in which the path components are clickable and allow
     quick navigation to the clicked-on directory on the currently listed
     ftp server. This also fixes a bug where the ".." directory links would
     sometimes refer to the wrong directory.  [Martin Kraemer]

  *) WIN32: Allocate the correct amount of memory for the scoreboard.
     [Ben Hyde] PR#1387

  *) WIN32: Only lowercase the part of the path that is real. [Ben Laurie]
     PR#1505

  *) Fix problems with timeouts in inetd mode and -X mode.  [Dean Gaudet]

  *) Fix the spurious "(0)unknown error: mmap_handler: mmap failed"
     error messages. [Ben Hyde]

Changes with Apache 1.3b3

  *) WIN32: Work around brain-damaged spawn calls that can't deal
     with spaces and slashes.  [Ben Laurie]

  *) WIN32: Fix the code so CGIs can use socket calls on Windows.  
     The problem was that certain undocumented environment variables
     needed for sockets to work under Win32 were not being passed.
     [Frank Faubert <frank@sane.com>]

  *) Add a "-V" command line flag to the httpd binary.  This 
     flag shows some of the defines that Apache was compiled with.
     It is useful for debugging purposes.  [Martin Kraemer]

  *) Start separating the ap_*() routines into their own library, so they
     can be used by items in src/support among other things.  
     [Ken Coar] PR#512, 905, 1252, 1308 

  *) Give a more informative error when no AuthType is set.
     [Lars Eilebrecht]

  *) Remove strtoul() use from mod_proxy because it isn't available
     on all platforms.   [Marc Slemko] PR#1214

  *) WIN32: Some Win32 systems terminated all responses after 16 kB. 
     This turns out to be a bug in Winsock - select() doesn't always 
     return the correct status.  [Ben Laurie]

  *) Directives owned by http_core can now use the new check_cmd_context()
     routine to ensure that they're not being used within a container
     (e.g., <Directory>) where they're invalid.  [Martin Kraemer]

  *) PORT: Recent changes made it necessary to add explicit prototype
     for fgetc() and fgets() on SunOS 4.x.  [Martin Kraemer, Ben Hyde]

  *) It was necessary to distinguish between resources which are
     allocated in the parent, for cleanup in the parent, and resources
     which are allocated in each child, for cleanup in each child.
     A new pool was created which is passed to the module child_init
     and child_exit functions; modules are free to register per-child
     cleanups there.  This fixes a bug with reliable piped logs.
     [Dean Gaudet]

  *) mod_autoindex wasn't displaying the ReadmeName file at the bottom
     unless it was also doing FancyIndexes, but it displayed the
     HeaderName file at the top under all circumstances.  It now shows
     the ReadmeName file for simple indices, too, as it should.  
     [Ken Coar] PR#1373

  *) http_core was mmap()ing even in cases where it wasn't going to
     read the file.  [Ben Hyde <bhyde@gensym.com>]

  *) Complete rewrite ;-) of mod_rewrite's URL rewriting engine:
     Now the rewriting engine (the heart of mod_rewrite) is organized more
     straight-forward, first time well documented and reduced to the really
     essential parts. All redundant cases were stripped off and processing now
     is the same for both per-server and per-directory context with only a
     minimum difference (the prefix stripping in per-dir context). As a
     side-effect some subtle restrictions and two recently discovered problems
     are gone: Wrong escaping of QUERY_STRING on redirects in per-directory
     context and restrictions on the substitution URL on redirects.
     Additionally some minor source cleanups were done. 
     [Ralf S. Engelschall] 

  *) Lars Eilebrecht wrote a whole new set of Apache Vhost Internals
     documentation, examples, explanations and caveats. They live in a new
     subdirectory htdocs/manual/vhost/. [Lars Eilebrecht <sfx@unix-ag.org>]

  *) If ap_slack fails to allocate above the low slack line it's a good
     indication that further problems will occur; it's a better indication
     than many external libraries give us when we actually run out of
     descriptors.  So report it to the user once per restart.
     [Dean Gaudet] PR#1181

  *) Change mod_include and mod_autoindex to use Y2K-safe date formats
     by default.  [Ken Coar]

  *) Add a "SuppressColumnSorting" option to the IndexOptions list,
     which will keep the column heading from being links for sorting
     the display.  [Ken Coar, suggested by Brian Tiemann <btman@pacific.net>]
     PR #1261

  *) PORT: Update the LynxOS port.  [Marius Groeger <mag@sysgo.de>]

  *) Fix logic error when issuing a mmap() failed message
     with a non-zero MMAP_THRESHOLD.
     [David Chambers <davidc@flosun.salk.edu>] PR#1294

  *) Preserve handler value on ProxyPass'ed requests by not
     calling find_types on a proxy'd request; fixes problems
     where some ProxyPass'ed URLs weren't actually passed
     to the proxy.
     [Lars Eilebrecht] PR#870

  *) Fix a byte ordering problem in mod_access which prevented
     the old-style syntax (i.e. "a.b.c." to match a class C)
     from working properly. [Dean Gaudet] PR#1248, 1328, 1384

  *) Fix problem with USE_FLOCK_SERIALIZED_ACCEPT not working
     properly. Each child needs to open the lockfile instead
     of using the passed file-descriptor from the parent. 
     [Jim Jagielski] PR#1056

  *) Fix the error logging in mod_cgi; the recent error log changes
     introduced a bug that prevented it from working correctly.
     [M.D.Parker] PR#1352

  *) Default to USE_FCNTL_SERIALIZED_ACCEPT on HPUX to properly 
     handle multiple Listen directives.  [Marc Slemko] PR#872

  *) Inherit a bugfix to fnmatch.c from FreeBSD sources.
     ["[KOI8-R] áÎÄŇĹĘ ţĹŇÎĎ×" <ache@nagual.pp.ru>] PR#1311

  *) When a configuration parse complained about a bad directive,
     the logger would use whatever (unrelated) value was in errno.
     errno is now forced to EINVAL first in this case.  [Ken Coar]

  *) A sed command in the Configure script pushed the edge of POSIXness,
     breaking on some systems.  [Bhaba R.Misra <system@vt.edu>] PR#1368

  *) Solaris >= 2.5 was totally broken due to a mess up using pthread
     mutexes.  [Roy Fielding, Dean Gaudet]

  *) OS/2 Port updated; it should be possible to build OS/2 from the same
     sources as Unix now.  [Brian Havard <brianh@kheldar.apana.org.au>]

  *) Fix a year formatting bug in mod_usertrack.
     [Paul Eggert <eggert@twinsun.com>] PR#1342

  *) A mild SIGTERM/SIGALRM race condition was eliminated.
     [Dean Gaudet] PR#1211

  *) Warn user that default path has changed if /usr/local/etc/httpd
     is found on the system.  [Lars Eilebrecht]

  *) Various mod_mime_magic bug fixes and cleanups: Uncompression
     should work, it should work on WIN32, and a few resource
     leaks and abort conditions are fixed.
     [Dean Gaudet] PR#1205

  *) PORT: On AIX 1.x files can't be named '@', fix the proxy cache
     to use '%' instead of '@' in its encodings.
     [David Schuler <schuld@btv.ibm.com>] PR#1317

  *) Improve the warning message generated when the "server is busy".
     [Dean Gaudet] PR#1293

  *) PORT: All ports which don't otherwise define DEF_WANTHSREGEX will
     get Spencer regex by default.  This is to avoid having to
     discover bugs in operating system libraries.  [Dean Gaudet]

  *) PORT: "Fix" PR#467 by generating warnings on systems which we have
     not been able to get working USE_*_SERIALIZED_ACCEPT settings for.
     Document this a bit more in src/PORTING.  [Dean Gaudet] PR#467

  *) Ensure that one copy of config warnings makes it to the
     error_log.  [Dean Gaudet]

  *) Invent new structure and associated methods to handle config file
     reading. Add "custom" hook to use config file cfg_getline() on
     something which is not a FILE*  [Martin Kraemer]

  *) Make single-exe Windows install. [Ben Laurie and Eric Esselink]

  *) WIN32: Make CGI work under Win95. [Ben Laurie and Paul Sutton]

  *) WIN32: Make index.html and friends work under Win95. [Ben Laurie]

  *) PORT: Solaris 2.4 needs Spencer regex, the system regex is broken.
     [John Line <jml4@cam.ac.uk>] PR#1321

  *) Default pathname has been changed everywhere to /usr/local/apache
     [Sameer <sameer@c2.net>]

  *) PORT: AIX now uses USE_FCNTL_SERIALIZED_ACCEPT.
     [David Bronder <David-Bronder@uiowa.edu>] PR#849

  *) PORT: i386 AIX does not have memmove.
     [David Schuler <schuld@btv.ibm.com>] PR#1267

  *) PORT: HPUX now defaults to using Spencer regex.
     [Philippe Vanhaesendonck <pvanhaes@be.oracle.com>,
     Omar Del Rio <al112263@academ01.lag.itesm.mx>] PR#482, 1246

  *) PORT: Some versions of NetBSD don't automatically define
     __NetBSD__.  Workaround by defining NETBSD.
     [Chris Craft <ccraft@cncc.cc.co.us>] PR#977

  *) PORT: UnixWare 2.x requires -lgen for syslog.
     [Hans Snijder <hs@meganet.nl>] PR#1249

  *) PORT: ULTRIX appears to not have syslog.
     [Lars Eilebrecht <Lars.Eilebrecht@unix-ag.org>]

  *) PORT: Basic Gemini port (treat it like unixware212).
     ["Pavel Yakovlev (Paul McHacker)" <hac@tomcat.olly.ru>]

  *) PORT: All SVR4 systems now use NET_SIZE_T = size_t, and
     use USE_SHMGET_SCOREBOARD.
     [Martin Kraemer]

  *) Various improvements in detecting config file errors (missing closing
     directives for <Directory>, <Files> etc. blocks, prohibiting global
     server settings in <VirtualHost> blocks, flagging unhandled multiple
     arguments to <Directory>, <Files> etc.)
     [Martin Kraemer]

  *) Add support to suexec wrapper program for mod_unique_id's UNIQUE_ID
     variable to provide this one to suexec'd CGIs, too.
     [M.D.Parker <mdpc@netcom.com>] PR#1284

  *) New support tool: src/support/split-logfile, a sample Perl script which
     splits up a combined access log into separate files based on the
     name of the virtual host (listed first in the log records by "%v").
     [Ken Coar]

Changes with Apache 1.3b2 (there is no 1.3b1)

  *) TestCompile was not passing $LIBS [Dean Gaudet]

  *) Makefile.tmpl was not using $CFLAGS in the link phase. 
     [Martin Kraemer]

  *) Add debugging code to alloc.c.  Defining ALLOC_DEBUG provides a
     rudimentary memory debugger which can be used on live servers with
     low impact -- it sets all allocated and freed memory bytes to 0xa5.
     Defining ALLOC_USE_MALLOC will cause the alloc code to use malloc()
     and free() for each object.  This is far more expensive and should
     only be used for testing with tools such as Electric Fence and
     Purify.  See main/alloc.c for more details.  [Dean Gaudet]

  *) Configure uses a sh trap and didn't set its exitcode properly.
     [Dean Gaudet] PR#1159

  *) Yet another vhost revamp.  Add the NameVirtualHost directive which
     explicitly lists the ip:port pairs that are to be used for name-vhosts.
     From a given ip:port, regardless what the Host: header is, you can
     only reach the vhosts defined on that ip:port.  The precedence of
     vhosts was reversed to match other precedences in the config --
     the earlier vhosts override the later vhosts.  All vhost matching was
     moved into http_vhost.[ch].  [Dean Gaudet]

  *) ap_inline can be used to force inlining.  GNUC __attribute__() can
     be used for whatever reason is appropriate (i.e. format() warnings
     for printf style functions).  Both are enabled only with
     gcc >= 2.7.x (so that we have fewer support issues with older
     versions).  [Dean Gaudet]

  *) Fix support for Proxy Authentication (we were testing the response
     status too early). [Marc Slemko]

  *) CoreDumpDirectory directive directs where the core file is
     written when a SIGSEGV, SIGBUS, SIGABORT or SIGABRT are
     received.  [Marc Slemko, Dean Gaudet]

  *) PORT: Support for Atari MINT.
     [Jan Paul Schmidt <Jan.P.Schmidt@mni.fh-giessen.de>]

  *) When booting, apache will now detach itself from stdin, stdout,
     and stderr.  stderr will not be detached until after the config
     files have been read so you will be able to see initial error
     messages.  After that all errors are logged in the error_log.
     This makes it more convenient to start apache via rsh, ssh,
     or crontabs.  [Dean Gaudet] PR#523

  *) mod_proxy was sending HTTP/1.1 responses to ftp requests by mistake.
     Also removed the auto-generated link to www.apache.org that was the
     source of so many misdirected bug reports.  [Roy Fielding, Marc Slemko]

  *) send_fb would not detect aborted connections in some situations.
     [Dean Gaudet]

  *) mod_include would use uninitialized data when parsing certain
     expressions involving && and ||. [Brian Slesinsky] PR#1139

  *) mod_imap should only handle GET methods.  [Jay Bloodworth]

  *) suexec.c wouldn't build without -DLOG_EXEC. [Jason A. Dour]

  *) mod_autoindex improperly counted &escapes; as more than one
     character in the description.  It also improperly truncated
     descriptions that were exactly the maximum length.
     [Martin Kraemer]

  *) RedirectMatch was not properly escaping the result (PR#1155).  Also
     "RedirectMatch /advertiser/(.*) $1" is now permitted.
     [Dean Gaudet]

  *) mod_include now uses symbolic names to check for request success
     and return HTTP errors, and correctly handles all types of
     redirections (previously it only did temporary redirect correctly).
     [Ken Coar, Roy Fielding]

  *) mod_userdir was modifying r->finfo in cases where it wasn't setting
     r->filename.  Since those two are meant to be in sync with each other
     this is a bug.  ["Paul B. Henson" <henson@intranet.csupomona.edu>]

  *) PORT: Support Unisys SVR4, whose uname returns mostly useless data.
     ["Kaufman, Steven E" <Steven.Kaufman@unisys.com>]

  *) Inetd mode (which is buggy) uses timeouts without having setup the
     jmpbuffer. [Dean Gaudet] PR#1064

  *) Work around problem under Linux where a child will start looping
     reporting a select error over and over.
     [Rick Franchuk <rickf@transpect.net>] PR#1107, 987, 588

  *) Fixed error in proxy_util.c when looping through multiple host IP
     addresses. [Lars Eilebrecht] PR#974

  *) If BUFFERED_LOGS is defined then mod_log_config will do atomic
     buffered writes -- that is, it will buffer up to PIPE_BUF (i.e. 4k)
     bytes before writing, but it will never split a log entry across a
     buffer boundary.  [Dean Gaudet]

  *) API: the short_score record has been split into two pieces, one which
     the parent writes on, and one which the child writes on.  As part of
     this change the get_scoreboard_info() function was removed, and
     scoreboard_image was exported.  This change fixes a race condition
     in file based scoreboard systems, and speeds up changes involving the
     scoreboard in earlier 1.3 development.  [Dean Gaudet]

  *) API: New register_other_child() API (see http_main.h) which allows
     modules to register children with the parent for maintenance.  It
     is disabled by defining NO_OTHER_CHILD.  [Dean Gaudet]

  *) API: New piped_log API (see http_log.h) which implements piped logs,
     and will use register_other_child to implement reliable piped logs
     when it is available.  The reliable piped logs part can be disabled
     by defining NO_RELIABLE_PIPED_LOGS.  At the moment reliable piped
     logs is only available on Unix. [Dean Gaudet]

  *) API: set_last_modified() broken into set_last_modified(), set_etag(), and
     meets_conditions().  This allows conditional HTTP selection to be
     handled separately from the storing of the header fields, and provides
     the ability for CGIs to set their own ETags for conditional checking.
     [Ken Coar, Roy Fielding]  PR#895

  *) Changes to mod_log_config to allow naming of format strings.
     Format nicknames are defined with "LogFormat fmt nickname", and can
     be used with "LogFormat nickname" and "CustomLog logtarget nickname".
     [Ken Coar]

  *) New module, "mod_speling", which can help find files even when 
     the URL is slightly misspelled. [Martin Kraemer, Alexei Kosut]

  *) API: New function child_terminate() triggers the child process to
     exit, while allowing the child finish what it needs to for the
     current request first.  
     [Doug MacEachern, Alexei Kosut]

  *) Windows now defaults to using full status reports with mod_status.
     [Alexei Kosut] PR #1094

  *) *Really* disable all mod_rewrite operations if the engine is off.
     Some things (like RewriteMaps) were checked/performed even if they
     weren't supposed to be.  [Ken Coar] PR #991

  *) Implement a new timer scheme which eliminates the need to call alarm() all
     the time.  Instead a counter in the scoreboard for each child is used to
     show when the child has made forward progress.  The parent samples this
     counter every scoreboard maintenance cycle, and issues SIGALRM if no
     progress has been made in the timeout period.  This reduces the static
     request best-case syscall count to 22 from 29.  This scheme is only
     used by systems with memory-based scoreboards.  [Dean Gaudet]

  *) The proxy now properly handles CONNECT requests which are sent
     to proxy servers when using ProxyRemote.  [Marc Slemko] PR#1024

  *) A script called apachectl has been added to the support 
     directory.  This script allows you to do things such as 
     "apachectl start" and "apachectl restart" from the command
     line.  [Marc Slemko]

  *) Modules and core routines are now put into libraries, which
     simplifies the link line tremendously (among other advantages).
     [Paul Sutton]

  *) Some of the MD5 names defined in Apache have been renamed to have
     an `ap_' prefix to avoid conflicts with routines supplied by
     external libraries.  [Ken Coar]

  *) Removal of mod_auth_msql.c from the distribution. There are many
     other options for databases today. Rather than offer one option,
     offer none at this time. mod_auth_msql and other SQL database
     authentication modules can be found at the Apache Module Registry.
     http://modules.apache.org/ It would be nice to offer a generic
     mod_auth_sql option in the near future.

  *) PORT: BeOS support added [Alexei Kosut]

  *) Configure no longer accepts the -make option, since it creates
     Makefile on the fly based on Makefile.tmpl and Configuration.

  *) Apache now gracefully shuts down when it receives a SIGTERM, instead
     of forcibly killing off all its processes and exiting without
     cleaning up. [Alexei Kosut]

  *) API: A new field in the request_rec, r->mtime, has been added to
     avoid gratuitous parsing of date strings.  It is intended to hold
     the last-modified date of the resource (if applicable).  An
     update_mtime() routine has also been added to advance it if
     appropriate.  [Roy Fielding, Ken Coar]

  *) SECURITY: If a htaccess file can not be read due to bad permissions,
     deny access to the directory with a HTTP_FORBIDDEN.  The previous
     behavior was to ignore the htaccess file if it could not be read.
     This change may make some setups with unreadable htaccess files
     stop working.  [Marc Slemko] PR#817

  *) Add aplog_error() providing a mechanism to define levels of
     verbosity to the server error logging. This addition also provides
     the ability to log errors using syslogd. Error logging is configurable
     on a per-server basis using the LogLevel directive. Conversion
     of log_*() in progress. [Randy Terbush]

  *) Further enhance aplog_error() to not log filename, line number, and
     errno information when it isn't applicable. [Ken Coar, Dean Gaudet]

  *) WIN32: Canonicalise filenames under Win32. Short filenames are
     converted to long ones. Backslashes are converted to forward
     slashes. Case is converted to lower. Parts of URLs that do not
     correspond to files are left completely alone. [Ben Laurie]

  *) PORT: 2 new OSs added to the list of ports:
      Encore's UMAX V: Arieh Markel <amarkel@encore.com>
      Acorn RISCiX: Stephen Borrill <sborrill@xemplar.co.uk>

  *) Add the server version (SERVER_VERSION macro) to the "server
     configured and running" entry in the error_log.  Also build an
     object file at link-time that contains the current time
     (SERVER_BUILT global const char[]), and include that in the
     message.  [Ken Coar]

  *) Set r->headers_out when sending responses from the proxy.
     This fixes things such as the logging of headers sent from
     the proxy.  [Marc Slemko] PR#659

  *) support/httpd_monitor is no longer distributed because the 
     scoreboard should not be file based if at all possible. Use
     mod_status to see current server snapshot.

  *) (set_file_slot): New function, allowing auth directives to be
     independent of the server root, so the server documents can be
     moved to a different directory or machine more easily.
     [David J. MacKenzie]

  *) If no TransferLog is given explicitly, decline
     to log.  This supports coexistence with other logging modules,
     such as the custom one that UUNET uses. [David J. MacKenzie]

  *) Check for titles in server-parsed HTML files.
     Ignore leading newlines and returns in titles.  The old behavior
     of replacing a newline after <title> with a space causes the
     title to be misaligned in the listing. [David J. MacKenzie]

  *) Change mod_cern_meta to be configurable on a per-directory basis.
     [David J. MacKenzie]

  *) Add 'Include' directive to allow inclusion of configuration
     files within configuration files. [Randy Terbush]

  *) Proxy errors on connect() are logged to the error_log (nothing
     new); now they include the IP address and port that failed
     (*that's* new).   [Ken Coar, Marc Slemko] PR#352

  *) Various architectures now define USE_MMAP_FILES which causes
     the server to use mmap() for static files.  There are two
     compile-time tunables MMAP_THRESHOLD (minimum number of bytes
     required to use mmap(), default is 0), and MMAP_SEGMENT_SIZE (maximum
     number of bytes written in one cycle from a single mmap()d object,
     default 32768).  [Dean Gaudet]

  *) API: Added post_read_request API phase which is run right after reading
     the request from a client, or right after an internal redirect.  It is
     useful for modules setting en