Apple today released a minor Apple TV software update to address issues with flickering, waking from sleep, and audio output. The software labelled version 4.2.1 comes with a number of fixes and improvements that are outlined in a support document.
- 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.