AOSP Changelogs

The Android Open Source Project (AOSP) is comprised of numerous Git repositories and further organized into multiple development branches. Furthermore, Google creates a Git tag that lists every commit introduced in a particular monthly platform/security update. Each platform release has a corresponding build ID* that identifies the exact code branch and the date when the release was branched from or synced with the development branch.

To keep up with the fast-paced development of AOSP, we’ve created changelogs that compare that list of commits between AOSP tags. For example, a comparison between the commits in the android-13.0.0_r15 and android-13.0.0_r16 tags reveals the full list of changes introduced in the first Quarterly Platform Release (QPR) for Android 13. Generating these AOSP changelogs is helpful in documenting all the changes in a particular Android release, as Google only provides a top level summary of changes in its developer documentation.

We’ve grouped changelogs together by Android version to make it easier to track the changes in each release over time. The hyperlinks in each row under the “AOSP tag (from … to)” column lead to each AOSP changelog we’ve generated. You can return to this page from each individual changelog by clicking the “AOSP Changelogs” header at the very top.

*If you're wondering what the letters and numbers in a build ID represent, Google has a succinct explanation here.

Android 13

The number of code changes introduced in Android 13 is massive. To help sort things out, we’ve created an extensive summary of what’s new in Android 13 that should be much easier to follow along.

Android 12L

Android 12L is a more minor release compared to Android 13, but it still introduced a lot of changes over Android 12. We provide a succinct, yet still thorough, examination of what’s new in Android 12L in this article.

Android 12

Android 11