The Developer Preview of the next release of Android is here early this year, with a host of new features and APIs such as multi-window mode, notification enhancements and many behavior changes targeting battery life and system health. It's the best time to start testing your apps to make sure you're ready for the final release later this year. We are also eager to hear feedback on the N Developer Preview so that we can make sure we deliver the best possible product for developers to build upon.