<p>This page summarizes the changes between tagged releases of Go.
For full details, see the <a href="http://code.google.com/p/go/source/list">Mercurial change log</a>.</p>
+This release includes changes to the log package, the removal of exp/iterable,
+two new tools (gotry and goplay), one small language change, and many other
+changes and fixes. If you use the log or iterable packages, you need to make
+The log package has changed. Loggers now have only one output, and output to
+standard error by default. The names have also changed, although the old names
+are still supported. They will be deleted in the next release, though, so it
+would be good to update now if you can. For most purposes all you need to do
+is make these substitutions:
+ log.Stderr -> log.Println or log.Print
+ log.Stderrf -> log.Printf
+ log.Crash -> log.Panicln or log.Panic
+ log.Crashf -> log.Panicf
+ log.Exit -> log.Exitln or log.Exit
+ log.Exitf -> log.Exitf (no change)
+Calls to log.New() must drop the second argument.
+Also, custom loggers with exit or panic properties will need to be reworked.
+For full details, see the change description:
+The language change is that uses of pointers to interface values no longer
+automatically dereference the pointer. A pointer to an interface value is more
+often a beginner’s bug than correct code.
+The package exp/iterable has been removed. It was an interesting experiment,
+but it encourages writing inefficient code and has outlived its utility.
+* gotry: an exercise in reflection and an unusual tool. Run 'gotry' for details.
+* goplay: a stand-alone version of the Go Playground. See misc/goplay.
+* 6l: Mach-O fixes, and fix to work with OS X nm/otool (thanks Jim McGrath).
+* a: correct line numbers for statements.
+* arm: code generation and runtime fixes
+* big: fix panic and round correctly in Rat.FloatString (thanks Anthony Martin).
+* build: Make.cmd: remove $(OFILES) (thanks Eric Clark),
+ Make.pkg: remove .so before installing new one,
+ add GOHOSTOS and GOHOSTARCH environment variables.
+* crypto/tls: better error messages for certificate issues,
+ make SetReadTimeout work.
+* doc: add Sydney University video to docs page.
+* exp/draw/x11: support X11 vendors other than "The X.Org Foundation".
+* expvar: add (*Int).Set (thanks Sam Thorogood).
+* fmt: add Errorf helper function,
+* gc: O(1) string comparison when lengths differ,
+* http: return the correct error if a header line is too long.
+* image: add image.Tiled type, the Go equivalent of Plan 9's repl bit.
+* ld: be less picky about bad line number info.
+* misc/cgo/life: fix for new slice rules (thanks Graham Miller).
+* net: allow _ in DNS names.
+* netchan: export before import when testing, and
+ zero out request to ensure correct gob decoding. (thanks Roger Peppe).
+* os: make tests work on windows (thanks Alex Brainman).
+* runtime: bug fix: serialize mcache allocation,
+ correct iteration of large map values,
+ faster strequal, memequal (thanks Graham Miller),
+ fix argument dump in traceback,
+* smtp: new package (thanks Evan Shaw).
+* syscall: add sockaddr_ll support for linux/386, linux/amd64 (thanks Mikio Hara),
+ add ucred structure for SCM_CREDENTIALS over UNIX sockets. (thanks Albert Strasheim).
+* syscall: implement WaitStatus and Wait4() for windows (thanks Wei Guangjing).
+* websocket: enable tests on windows (thanks Alex Brainman).