From: drh on
The release of SQLite version 3.7.0 is coming soon. SQLite version
3.7.0 features
support for write-ahead logs, which both improves performance and
enhances
concurrency. TEA-ready source tarballs are available for testing.
Your feedback
is encouraged.

http://www.sqlite.org/draft/download.html
http://www.sqlite.org/draft/wal.html

Please send feedback directly to me at drh(a)sqlite.org, or to the
SQLite mailing list at
sqlite-users(a)sqlite.org. Thanks!