Google rolled out Android 5.1 Lollipop update to Android devices the other day and the company has now released the Android 5.1 SDK to developers.
Android 5.1 introduces a small set of new APIs for developers.
For developers, Android 5.1 including a small set of new APIs. A key API addition is support for multiple SIM cards, which is important for many regions where Android One phones are being adopted. Consumers of Android One devices will have more flexibility to switch between carriers and manage their network activities in the way that works best for them.
In addition to the new consumer features, Android 5.1 also enhances enterprise features to better support the launch of Android for Work.
The SDK now includes Android 5.1 emulator system images that you can use to test your apps and develop using the latest capabilities and APIs.
You can update your SDK through the Android SDK Manager in Android Studio. Google also said that it will start rolling out updates for Android 5.1 to the following Nexus devices:
Nexus 4, Nexus 5, Nexus 6, Nexus 7 [2012], Nexus 7 [2012] (3G), Nexus 7 (2013), Nexus 7 [2013] (3G/LTE), Nexus 9, Nexus 9 (LTE), Nexus 10, and Nexus Player over the next few weeks.