In fact, this is build 5443 of the Apple TV's iOS flavor, which is still showing 5.1.1 for me. Nevertheless, there's an update waiting which no doubt will improve stability and quash other bugs, plus make it play nice with today's Remote and iTunes updates. Just go to Settings > General > About on your Apple TV to update and let us know if you find anything new.

This article was originally published on Tuaw.
Apple updates Remote app for iPhone, iPad