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Kirill Simonov committed 21c2d9f

Restored accidentally deleted NEWS.

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+List of Changes
+===============
+
+
+2.0.0 beta 5 (2010-12-14)
+-------------------------
+
+* Completed the SQLite backend.
+* Completed the standard library.
+
+
+2.0.0 beta 4 (2010-12-05)
+-------------------------
+
+* Refactored peep-hole optimization of the frame tree and SQL
+  serialization; refined the generated SQL.
+* Refactored the internal API for adding functions.
+* Added new (experimental) syntax for infix function call.
+* Added an "Examples" section to the documentation.
+* Fixed compatibility with Python 2.5.
+* Many minor bugfixes, documentation updates, etc.
+
+
+2.0.0 beta 3 (2010-11-09)
+-------------------------
+
+* Refactored the translator from the term tree to the frame tree;
+  added a new translation step to collapse nested frames and reduce
+  SQL expressions.
+* Added the HTRAF demo: use HTSQL with client-side javascript
+  to define complex dashboards.
+* Added the SSI demo: using HTSQL for web without giving direct access
+  to the database.
+* Updated the tutorial, minor bugfixes, regression test updates, etc.
+
+
+2.0.0 beta 2 (2010-10-01)
+-------------------------
+
+* Refactored the translator from the expression graph to the term tree.
+* Added `Content-Disposition` header to `:json` and `:csv` renderers.
+* Merged the tutorial to the repository.
+
+
+2.0.0 beta 1 (2010-09-21)
+-------------------------
+
+* Initial beta release.
+* PostgreSQL and SQLite backends are (mostly) supported, the former
+  more than the latter.
+* The SQL translator needs more work, in particular, the term tree,
+  the frame structure and the serializer.
+* Lots of functions are either not implemented or missing a proper
+  serializer, especially in the SQLite backend.
+* Other areas which need more work before the final release: rendering,
+  introspection, regression tests and documentation.
+