O-MG, the Developer Preview of Android O is here! (Android Developers Blog)

The Android Developers Blog introducesthe first developer preview of Android O. This version includesbackground limits, notification channels, autofill APIs, PIP for handsets,font resources in XML, adaptive icons, and much more. "Building on the work we began in Nougat, Android O puts a big priority on improving a user's battery life and the device's interactive performance. To make this possible, we've put additional automatic limits on what apps can do in the background, in three main areas: implicit broadcasts, background services, and location updates. These changes will make it easier to create apps that have minimal impact on a user's device and battery. Background limits represent a significant change in Android, so we want every developer to get familiar with them."