> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/android/ndk/llms.txt
> Use this file to discover all available pages before exploring further.

# NDK changelog

> Where to find NDK changelogs, major changes between versions, and deprecated features

Each NDK release includes changes to the toolchain, libraries, APIs, and tools. This page helps you find changelog information and understand major changes between versions.

## Finding changelogs

Changelogs for each NDK release are available in several locations:

* **NDK Wiki** - Release notes are posted on the [NDK wiki](https://github.com/android-ndk/ndk/wiki)
* **GitHub Releases** - Each release on the [GitHub releases page](https://github.com/android/ndk/releases) includes detailed release notes
* **Source Repository** - Changelogs are maintained in the [AOSP NDK repository](https://android.googlesource.com/platform/ndk/+/master/)

## Major changes by version

<Accordion title="NDK r29">
  For detailed changes in NDK r29, see the official release notes on the [NDK wiki](https://github.com/android-ndk/ndk/wiki).

  Key areas to check:

  * Toolchain updates (Clang/LLVM version)
  * New API levels supported
  * Build system improvements
  * Bug fixes and performance improvements
</Accordion>

<Accordion title="NDK r28">
  For detailed changes in NDK r28, see the official release notes on the [NDK wiki](https://github.com/android-ndk/ndk/wiki).

  Key areas to check:

  * Toolchain updates (Clang/LLVM version)
  * New API levels supported
  * Build system improvements
  * Bug fixes and performance improvements
</Accordion>

<Accordion title="NDK r27">
  For detailed changes in NDK r27, see the official release notes on the [NDK wiki](https://github.com/android-ndk/ndk/wiki).

  Key areas to check:

  * Toolchain updates (Clang/LLVM version)
  * New API levels supported
  * Build system improvements
  * Bug fixes and performance improvements
</Accordion>

## Deprecated features

<Warning>
  The NDK regularly deprecates and removes old features, APIs, and build configurations. Always check the release notes when upgrading to see if any features you depend on have been deprecated.
</Warning>

### Common deprecations

Historically, the NDK has deprecated:

* Old API levels that are no longer supported by Android
* Legacy build system features
* Deprecated ABIs (e.g., armeabi, mips, mips64)
* Outdated toolchain components

For a complete list of deprecated features in each release, consult the changelog for that version.

## API changes and compatibility

Changes to the Android platform APIs available through the NDK are documented in:

* [Android bionic status](https://android.googlesource.com/platform/bionic/+/master/docs/status.md) - What APIs are available in what releases and behavior changes between API levels
* [Android changes for NDK developers](https://android.googlesource.com/platform/bionic/+/master/android-changes-for-ndk-developers.md) - Important dynamic linker changes in various Android releases
* [32-bit ABI bugs](https://android.googlesource.com/platform/bionic/+/master/docs/32-bit-abi.md) - Known issues for 32-bit code

## Breaking changes

Breaking changes are typically announced well in advance and documented in:

1. The release notes for the version introducing the change
2. The [NDK Roadmap](https://android.googlesource.com/platform/ndk/+/master/docs/Roadmap.md)
3. Announcements on the [android-ndk Google Group](http://groups.google.com/group/android-ndk)

<Warning>
  Always test your application with new NDK releases in a development environment before deploying to production. Some changes may require code modifications.
</Warning>

## Related resources

* [NDK releases](/resources/releases) - Supported versions and download links
* [Migration guides](/resources/migration-guides) - Step-by-step guides for upgrading between versions
* [Common problems](https://android.googlesource.com/platform/ndk/+/master/docs/user/common_problems.md) - Known issues and solutions