Michael Tsai’s must-have shareware program, SpamSieve, has just been updated to version 2.8.3. The new version, a 7.1 megabyte download, makes the following fixes and improvements:

- Adjusted SpamSieve’s tokenizer to improve the filtering accuracy.

- Improved compatibility with pre-release versions of Apple Mail.

- MailForge now works with SpamSieve, as described in the Setting up MailForge section of the manual.

- Made some changes to better support the upcoming Microsoft Outlook 2011. (Full support will come when Office ships.)

- Added various updates and clarifications to the manual.

- Fixed a regression where SpamSieve wouldn’t be able to install its Apple Mail plug-in if Mail’s folder had been redirected using an alias.

- Fixed a bug where SpamSieve would sometimes quit when coming out of trial mode.

- Fixed a bug where sometimes the Hits column in a rules window couldn’t be resized.

- Worked around an OS bug that could cause an internal error when reporting a corpus error.

- Made various modernizations to SpamSieve’s code and interface files.

- The Apple Mail plug-in now shows up with the proper name in Mail Plugin Manager.

- Updated the disk image layout.

SpamSieve is available for a US$30 registration fee and requires Mac OS X 10.4 or later to run. The new version can either be downloaded directly from the web site or brought up to the current version via the program’s built-in update feature.