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SDK Platform Release Notes

This page provides release information about the SDK packages available for download from the SDK Manager, in the SDK Platforms tab.

Each SDK Platform version includes the following packages:

The revision numbers listed below are for the Android SDK Platform package only. The system images may receive separate updates, usually to resolve various bugs with the emulator. There are no release notes for the system images but you should always keep them up to date.

Important: To see the most recent Android system components in the Android SDK Manager, you must first update SDK Tools to the most recent release and restart the SDK Manager.

Android 7.1 (API level 25)

For details about the platform changes, see Android 7.1 for Developers.

Android 7.0 (API level 24)

For details about the platform changes, see Android 7.0 for Developers.

Android 6.0 (API level 23)

For details about the platform changes, see the Android 6.0 Changes and Android 6.0 APIs.

Android 5.1 (API level 22)

For details about the platform changes, see the Lollipop Overview and Android 5.1 API Changes.

Android 5.0 (API level 21)

For details about the platform changes, see the Lollipop Overview and Android 5.0 API Changes.

Android 4.4W (API level 20)

This version makes KitKat available for Android Wear.

Android 4.4 (API level 19)

For details about the platform changes, see the KitKat Overview and Android 4.4 API Changes.

Android 4.3 (API level 18)

For details about the platform changes, see the Jelly Bean Overview and Android 4.3 API Changes.

Revision 2 (August 2013)

Maintenance update. The system version is 4.3.

Dependencies:
Android SDK Platform-tools r18 or higher is required.
Android SDK Tools 22.0.4 or higher is recommended.

Revision 1 (July 2013)

Initial release. The system version is 4.3.

Dependencies:
Android SDK Platform-tools r18 or higher is required.
Android SDK Tools 22.0.4 or higher is recommended.

Android 4.2 (API level 17)

For details about the platform changes, see the Jelly Bean Overview and Android 4.2 API Changes.

Revision 2 (February 2013)

Maintenance update. The system version is 4.2.2.

Dependencies:
SDK Tools r21 or higher is required.

Revision 1 (November 2012)

Initial release. The system version is 4.2.

Dependencies:
SDK Tools r20 or higher is required.

Android 4.1 (API level 16)

For details about the platform changes, see the Jelly Bean Overview and Android 4.1 API Changes.

Revision 3 (October 2012)

Maintenance update. The system version is 4.1.2.

Dependencies:
SDK Tools r20 or higher is required.

Revision 2 (July 2012)

Maintenance update. The system version is 4.1.1.

Dependencies:
SDK Tools r20 or higher is required.

Revision 1 (June 2012)

Initial release. The system version is 4.1.0.

Dependencies:
SDK Tools r20 or higher is required.

Android 4.0.3 (API level 15)

Revision 3 (March 2012)

Maintenance update. The system version is 4.0.4.

Note: This system image includes support for emulator hardware graphics acceleration when used with SDK Tools r17 or higher. (more info)

Dependencies:
SDK Tools r17 or higher is required.

Revision 2 (January 2012)

Maintenance update. The system version is 4.0.3.

Dependencies:
SDK Tools r14 or higher is required.

Revision 1 (December 2011)

Initial release. The system version is 4.0.3.

Dependencies:
SDK Tools r14 or higher is required.

Android 4.0 (API level 14)

Android 4.0, Revision 2 (December 2011)

Maintenance update. The system version is 4.0.2.

Dependencies:
SDK Tools r14 or higher is required.

Android 4.0, Revision 1 (October 2011)

Initial release. The system version is 4.0.1.

Dependencies:
SDK Tools r14 or higher is required.

Android 3.2 (API level 13)

Android 3.2, Revision 1 (July 2011)

Initial release. SDK Tools r12 or higher is recommended.

Android 3.1 (API level 12)

Android 3.1, Revision 3 (July 2011)

Dependencies:

Requires SDK Tools r12 or higher.

Notes:

Improvements to the platform's rendering library to support the visual layout editor in the ADT Eclipse plugin. This revision allows for more drawing features in ADT and fixes several bugs in the previous rendering library. It also unlocks several editor features that were added in ADT 12.

Android 3.1, Revision 2 (May 2011)

Dependencies:

Requires SDK Tools r11 or higher.

Notes:

Fixes an issue with the visual layout editor rendering library that prevented Android 3.1 from running in ADT.

Android 3.1, Revision 1 (May 2011)

Dependencies:

Requires SDK Tools r11 or higher.

Android 3.0 (API level 11)

Android 3.0, Revision 2 (July 2011)

Dependencies:

Requires SDK Tools r12 or higher.

Notes:

Improvements to the platform's rendering library to support the visual layout editor in the ADT Eclipse plugin. This revision allows for more drawing features in ADT and fixes several bugs in the previous rendering library. It also unlocks several editor features that were added in ADT 12.

Android 3.0, Revision 1 (February 2011)

Dependencies:

Requires SDK Tools r10 or higher.

Android 2.3.3 (API level 10)

Android 2.3.3, Revision 2 (July 2011)

Dependencies:

Requires SDK Tools r12 or higher.

Notes:

Improvements to the platform's rendering library to support the visual layout editor in the ADT Eclipse plugin. This revision allows for more drawing features in ADT and fixes several bugs in the previous rendering library. It also unlocks several editor features that were added in ADT 12.

Android 2.3.3, Revision 1 (February 2011)

Dependencies:

Requires SDK Tools r9 or higher.

Android 2.3 (API level 9)

Android 2.3, Revision 1 (December 2010)

Dependencies:

Requires SDK Tools r8 or higher.

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