The release of SpamAssassin 3.3.0 is scheduled for January 15, 2010.

After a year and a half of development, the SpamAssassin project's anti-spam development team plans to release a new version in January 2010.
There are a lot of changes in the new version, but mainly they concern the extended set of rules, as well as the optimization of the project code for a more dynamic update of the rules.

Major changes:

- filtering rules are excluded from the base delivery. All new rules are loaded using sa-update
- Removed use of modules MAIL :: DomainKeys and MAIL :: SPF :: Query
- The AWL module is no longer loading by default. You need to additionally include it in the configuration file.
- Work in Perl versions 5.6. * And below is not supported. Recommended versions 5.8.8, 5.8.9, 5.10.1
- DKIM plugin is now able to understand and verify the digital signatures of domain keys.
- Added timeout for the work of connected plug-ins, the default is 300 seconds. If the plugin does not respond, it is carefully targeted and the check continues as usual.
- Added the ability to exclude unnecessary sections from the debug information (include everything at once and then exclude unnecessary)
- Added full IPv6 support for various lists (AWL, trusted_networks, etc.)
- Added a bunch of new rules and content checking emails.
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You can start testing now. The version is quite stable and most likely there will be no big changes to the release.

Full RELEASE Notes.