SpamSieve 2.9.10

C-Command Software has released SpamSieve 2.9.10 with added compatibility for what became the final release of OS X 10.9 Mavericks. As with the previous update (see “SpamSieve 2.9.9,” 9 October 2013), C-Command recommends that you update to SpamSieve 2.9.10 before installing Mavericks, but if OS X 10.9 is already installed then you should choose SpamSieve > Install Apple Mail Plug-In. The new version also updates various parts of the manual. ($30 new with a 20 percent discount for TidBITS members, free update, 10.8 MB, release notes)