Last week, Apple update the Apple TV to version 4.4, adding the long-awaited AirPlay mirroring features. Now it has rolled out an incremental version (4.4.1) that adds some minor bug fixes and tweaks. This 4.4.1 version was initially released today, October 18, and then pulled after reports of bricked Apple TV units surfaced. The problem with this update was fixed and Apple has made it publicly available again.
This 4.4.1 version may be small, but it builds on the 4.4 firmware update which added several new features to the Apple TV. With 4.4, you can use AirPlay mirroring with your iPad 2 and iPhone 4S and view PhotoStream content that's stored in iCloud.