Apple has pushed out Apple TV software version 5.0.2 (4250), still listed as iOS 5.1.1, but now with build number 9B830. The update is for both the 2010 Apple TV (720p) and 2012 Apple TV (1080p). Like with the last update, no new features are shown, and no new services seem to have been added, so this could just be another bug fix and performance enhancement release.
To update your Apple TV:
If you have any trouble or need any help, head on over to our Apple TV forum!