Beta Firmware

This is a documented list of beta firmwares Apple has provided to developers or were used for testing. To be able to use and download this software legally, you must have a $99/year Apple developer account.

There has always been a big confusion about the firmware versions of the Apple TV (2nd generation), because the version numbers don't match the version number that is being displayed. Here's an overview. The best way to refer to a specific firmware is to use the build number.