Release Notes: Locking has been removed from MySQL, as it makes it too slow.
Release Notes: This release fixes a problem with concurrent updates.
Release Notes: Tokenization now correctly identifies URLs at the start of the message, and nested message attachments are correctly parsed.
Release Notes: The documentation for "--dump" was fixed, and "--dump" now checks before it overwrites a database. In non-filtering mode, large messages are no longer mistakenly output on stdout. The database backend in use is now reported in very verbose mode.
Release Notes: Build fixes and improvements were made for RPM-based systems.
Release Notes: A memory management bug in the MySQL backend was fixed. Some outdated information in the documentation was fixed. The default database backend was optimised.
Release Notes: This version fixes a data corruption bug in the internal database backend, adds locking to the internal database, drops support for Berkeley DB, and makes the internal database the default instead of GDBM. The new filters have been documented.
Release Notes: HTML parsing has been improved and the minimum token length increased, which gives better matching in general. A bug in the "X-Spam-Token" header code was also fixed.
Release Notes: A bug in the --restore option that prevented restoration was fixed.