Apple has released their fourth developer beta of Apple TV 6.0 software update and the update is available through the Software Update panel (by opening the Apple TV Settings menu, and using the Software Update) on devices running a previous beta or you can direct download from Apple’s developer site (download link at the end of post).
No significant changes appear in the latest update but according to release notes,
“You can now use an iOS 7 device to set up an Apple TV after restoring or resetting all settings”
It is a good news that, the new beta is now available for the second and third-generation Apple TV models, as well as the tweaked third-generation model.