Apple has released a new update Apple TV 2G.There is no official changelog yet for iOS 4.2.1 (8C154) bur this update seems to be minor, mainly released to fix bugs and security loopholes.The important feature in iOS 4.2.x is Video AirPlay that allows users to stream pictures, videos, and music from your iPhone, iPad and iPod Touch to the connected Apple TV 2G.
Last iOS update for iPhone, iPad and iPod touch was iOS 4.2.1 which released on November 22 last month.
According to Apple’s official notes two bugs are fixed in ATV2 iOS 4.2.1:
* TV resolution fix: Addresses an issue that causes some high-definition TVs to incorrectly display at 480p.
* Download fix: Addresses an issue that may cause a movie or TV show to be re-downloaded.
Download Apple TV 2G iOS 4.2.1 Build 8C154