Google releases last Android O Developer Preview before official launch
This would be the fourth Android O Developer Preview released by Google and the last one before the official launch. As some of you probably already know, Android O should be published later this summer, which means we're only one month away from the announcement.
Developer Preview 4 is available for Pixel, Pixel XL, Pixel C, Nexus 5X, Nexus 6P, Nexus Player, and the Android Emulator if you don't have any of the handsets mentioned.
According to Google, Developer Preview 4 contains the “final system behaviors, the latest bug fixes, and optimizations, and the final APIs already available since Developer Preview 3.”
The new beta has been released one month before Android O gets outed in order to allow developers to test their apps and near-final version of the new operating system.
It will also enable devs to introduce some of the new Android O features into their apps, including notification channels and dots, shortcut pinning, picture-in-picture, autofill, and many others.
Keep in mind that you can download the Android O Developer Preview 4 factory images and flash the update manually on your Nexus and Pixel devices. Alternatively, you can opt-in your eligible device via Android O beta program.