Android N Developer Preview 4 has been recently released. According to the Google, Developer Preview 4 includes the final APIs, which is API level 24. That means apps can now be published with support for API level 24 on Google Play in alpha, beta, and production release channels. Google is also providing the final API to Android Studio 2.1.2 and higher, while also pushing system images to the emulator.
New in Developer’s Preview 4
Android N final APIs
Developer Preview 4 includes the final APIs for the upcoming Android N platform. The new API level is 24.
You can now publish apps that use API level 24 to Google Play, in alpha, beta, and production release channels.
Android Studio and tools updates
Along with Developer Preview 4 Google is providing the final API 24 SDK to be used with Android Studio 2.1.2 and higher. In addition, Google is releasing updated Developer Preview 4 system images for the emulator to help test your apps.
As new updates roll out for Android Studio, you should see minor improvements