Looks like Apple has released another update to the second generation Apple TV. The last update arrived with iOS 4.3 (introduced NBA League Pass and MLB TV), but this new minor update released today addresses the following issues:
- TV compatibility: Addresses issues that may cause the screen to flicker or display incorrect color on some older TVs.
- Wake from sleep: Addresses an issue where Apple TV may not wake up from sleep.
- Audio: Addresses an issue where audio may not be heard on some TV models after switching from another input.
- Stability and performance: Apple TV Software Update 4.2.1 includes stability and performance fixes for Apple TV
For those with jailbroken Apple TVs (i.e. to stream .AVIs from Mac/PC to Apple TV via XBMC), updating will erase your jailbreak. But, if you’ve been running into issues update right away (here’s a video of the process).