Google released the software development kit (SDK) for the latest version of Android (Lollipop), which includes design and efficiency improvements.

The company announced Android 5.0 at its I/O conference in June when it made the ‘L’ Developer Preview available for the Nexus 5 smartphone, Nexus 7 tablet and Android TV.

Google said the new version of Android is its “largest, most ambitious” release, with more than 5,000 new APIs for developers.

The feedback from the Developer Preview has influenced the SDK, which provides updated developer images for the existing devices and the Android emulator.

The Lollipop SDK includes APIs for the new Material Design theme, enhanced notifications for apps, improved app power efficiency, an enhanced Android runtime, an Android Extension Pack and 64-bit support for better app performance.

These elements can all be downloaded from the Android SDK Manager and used to build apps in the Android Studio development environment.

In addition, developers can now publish apps targeting Android Lollipop in Google Play.

The first devices to run the new version of Android — the Nexus 6 smartphone, Nexus 9 tablet and new Android consumer device, Nexus Player— were announced last week and will be available early next month.

Lollipop will be rolled out to the existing Nexus 4, 5, 7 and 10 devices over the same timeframe.