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## SQLite Release 3.7.0 On 2010 July 22 (3.7.0)

Changes associated with this release include the following:

- Added support for write-ahead logging.
- Query planner enhancement - automatic transient indices are created when doing so reduces the estimated query time.
- Query planner enhancement - the ORDER BY becomes a no-op if the query also contains a GROUP BY clause that forces the correct output order.
- Add the SQLITE_DBSTATUS_CACHE_USED verb for sqlite3_db_status().
- The logical database size is now stored in the database header so that bytes can be appended to the end of the database file without corrupting it and so that SQLite will work correctly on systems that lack support for ftruncate().

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.

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