After releasing iOS 6.1 with support for more LTE carriers, Siri movie-ticket purchasing, and more, Apple also released an update to Apple TV that brings Bluetooth keyboard support (as previously discovered), Up Next, and an enhanced iTunes in the Cloud service. As highlighted in the image above, Apple added the Up Next feature it first introduced in iTunes 11, along with the previously discovered Bluetooth keyboard support and the ability to browse and play purchased iTunes music from iCloud.
Curiously, Apple also appears to have released an update for unannounced AppleTV 3,2:
Apple today released iOS 6.1 to end-users after first releasing a beta version to developers in November. The update enables movie ticket purchasing through Siri, redesigned music control buttons, and new MapKit framework enhancements.