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Find out how the Android security program works and learn how to implement the latest features.

Offer a consistent experience with other Android-powered devices and get the ability to include more apps.

Android is an open source software stack for a wide range of mobiledevices and a corresponding open source project led by Google. Thissite and the Android Open Source Project (AOSP) repository offer theinformation and source code you need to create custom variants of theAndroid stack, port devices and accessories to the Android platform,and ensure your devices meet compatibility requirements.

We also wanted to make sure there was no central point of failure,where one industry player could restrict or control the innovations ofany other. The result is a full, production-quality operating systemfor consumer products with source code open for customization andporting.

As the AOSP documentation site, we seek your contributions. With anever-changing ecosystem, we need your help to stay fresh. You may makeyour own fixes directly to the source files by following theinstructions in ourREADME.You may also use theSiteFeedback link at the bottom of any page to report bugs and offersuggestions for enhancement. See the site’schangelogfor a detailed view of all updates.

The Android 8.1 release is now available and offers many new features aimed at device manufacturers and users alike.

The reference materials for the HAL Interface Description Language (HIDL) have been updated to reflect the Android 8.1 release.

The December 2017 Android and Pixel/Nexus Security Bulletins have been published to support the December security release.