SQLite Release 3.5.2 On 2007 Nov 05 (3.5.2)

• Dropped support for the SQLITE_OMIT_MEMORY_ALLOCATION compile-time option.
• Always open files using FILE_FLAG_RANDOM_ACCESS under Windows.
• The 3rd parameter of the built-in SUBSTR() function is now optional.
• Bug fix: do not invoke the authorizer when reparsing the schema after a schema change.
• Added the experimental malloc-free memory allocator in mem3.c.
• Virtual machine stores 64-bit integer and floating point constants in binary instead of text for a performance boost.
• Fix a race condition in test_async.c.
• Added the ".timer" command to the CLI

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.