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## SQLite Release 3.7.6 On 2011-04-12

- Added the sqlite3_wal_checkpoint_v2() interface and enhanced the wal_checkpoint pragma to support blocking checkpoints.
- Improvements to the query planner so that it makes better estimates of plan costs and hence does a better job of choosing the right plan, especially when SQLITE_ENABLE_STAT2 is used.
- Fix a bug which prevented deferred foreign key constraints from being enforced when sqlite3_finalize() was not called by one statement with a failed foreign key constraint prior to another statement with foreign key constraints running.
- Integer arithmetic operations that would have resulted in overflow are now performed using floating-point instead.
- Increased the version number on the VFS object to 3 and added new methods xSetSysCall, xGetSysCall, and xNextSysCall used for doing full-coverage testing.
- Increase the maximum value of SQLITE_MAX_ATTACHED from 30 to 62 (though the default value remains at 10).
- Enhancements to FTS4:
  1. Added the fts4aux table
  2. Added support for compressed FTS4 content
- Enhance the ANALYZE command to support the name of an index as its argument, in order to analyze just that one index.
- Added the "unix-excl" built-in VFS on unix and unix-like platforms.
- SQLITE_SOURCE_ID: "2011-04-12 01:58:40 f9d43fa363d54beab6f45db005abac0a7c0c47a7"
- SHA1 for sqlite3.c: f38df08547efae0ff4343da607b723f588bbd66b

A complete list of SQLite releases in a single page is also available. A detailed history of every check-in is available at http://www.sqlite.org/src/timeline.