The current Changelog for the 4.2.2 update is:
- Android 4.2.2
- Improved BlinkFeed
- Stock HTC %battery
- Stock HTC EQS
- Long press home button works as menu
- Possibility to remove all icons from the dock
- Icons doesn't disappear from the app drawer even if added to the dock
- Audio improvements
- Camera improvement
- Thermal configuration improvements
http://forum.xda-developers.com/show....php?t=2305490