Late Thursday, Apple posted version 2.2 of its Apple TV software. The update, available through the device's settings, includes assorted security fixes (CVE-ID: CVE-2007-4674, CVE-2008-3626 and CVE-2008-3629) which all relate to locking down maliciously crafted movies or PICT files.

According to iPod Observer, users can force an immediate update by navigating to Settings -> General -> About -> Update Software. The download typically takes several minutes on a high speed broadband connection.

If you've tried the new version and have any feedback about it, please let us know in the comments or forums.