Main changes:
- Restricted profile. On Android tablets, users can now create restricted profiles based on the primary user. App that app uses implicit intents and/or depends on accounts have to manage the new feature.
- Wireless and Connectivity. News are support to Bluetooth Low Energy (LE), wifi scan-only mode that allows the device Wi-Fi to scan access points to help obtain the location without connecting to an access point.
- Multimedia. New MediaDrm class
- Graphics. Support for OpenGL ES 3.0 User Interface. New ViewOverlay class and more.
- User Input. New sensor types.
- Notification Listener. New service class, NotificationListenerService.