Google has released Android 4.2.2 and is rolling out for some Galaxy Nexus, Nexusn 4 Devices, Nexus 7, and Nexus 10.
- More secured ADB
- Bluetooth audio streaming bugs fix
- Download notification now shows remaining time
- You can toggle WiFi and Bluetooth on/off by long-pressing them in Quick Settings
- Performance enhancements
- New notification sounds (wireless charging and low battery)
Update also apparently disable the partialish LTE support on the Nexus 4.