Last week Apple released a new version of Apple TV which is labeled as 6.0 and later it was removed because that version (Apple TV 6.0) contains bugs. According to a tweet from Adeobla, Apple has issued a new version of Apple TV which is also labeled as 6.0 but the new version comes with a build number 11A502. Earlier the build version was 11A470e.
The new Apple TV update brings iTunes Radio, the iTunes Music Store, and new AirPlay functionality. So, for what you are waiting for? Update Apple TV to latest version as soon as possible.
— Adebola Adeyemi (@iamsteezze) September 23, 2013