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## SQLite Release 3.5.7 On 2008 Mar 17 (3.5.7)

Changes associated with this release include the following:

- Fix a bug (ticket #2927) in the register allocation for compound selects - introduced by the new VM code in version 3.5.5.
- ALTER TABLE uses double-quotes instead of single-quotes for quoting filenames.
- Use the WHERE clause to reduce the size of a materialized VIEW in an UPDATE or DELETE statement. (Optimization)
- Do not apply the flattening optimization if the outer query is an aggregate and the inner query contains ORDER BY. (Ticket #2943)
- Additional OS/2 updates
- Added an experimental power-of-two, first-fit memory allocator.
- Remove all instances of sprintf() from the code
- Accept "Z" as the zulu timezone at the end of date strings
- Fix a bug in the LIKE optimizer that occurs when the last character before the first wildcard is an upper-case "Z"
- Added the "bitvec" object for keeping track of which pages have been journalled. Improves speed and reduces memory consumption, especially for large database files.
- Get the SQLITE_ENABLE_LOCKING_STYLE macro working again on Mac OS X.
- Store the statement journal in the temporary file directory instead of colocated with the database file.
- Many improvements and cleanups to the configure script

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