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## SQLite Release 3.6.4 On 2008-10-15 (3.6.4)

- Add option support for LIMIT and ORDER BY clauses on DELETE and UPDATE statements. Only works if SQLite is compiled with SQLITE_ENABLE_UPDATE_DELETE_LIMIT.
- Added the sqlite3_stmt_status() interface for performance monitoring.
- Add the INDEXED BY clause.
- The LOCKING_STYLE extension is now enabled by default on Mac OS X
- Added the TRUNCATE option to PRAGMA journal_mode
- Performance enhancements to tree balancing logic in the B-Tree layer.
- Added the source code and documentation for the genfkey program for automatically generating triggers to enforce foreign key constraints.
- Added the SQLITE_OMIT_TRUNCATE_OPTIMIZATION compile-time option.
- The SQL language documentation is converted to use syntax diagrams instead of BNF.
- Other minor bug fixes

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.