The `androidx` namespace comprises the [Android Jetpack](https://developer.android.com/jetpack) libraries. Like the Support Library, libraries in the `androidx` namespace ship separately from the Android platform and provide backward compatibility across Android releases.

AndroidX is a major improvement to the original Android
[Support Library](https://developer.android.com/topic/libraries/support-library), which is no longer maintained.
`androidx` packages fully replace the Support Library by providing feature parity and new libraries.

In addition, AndroidX includes the following features:

- All packages in AndroidX live in a consistent namespace starting with the
  string `androidx`. The Support Library packages have been mapped into
  corresponding `androidx.*` packages. For a full mapping of all the old classes
  and build artifacts to the new ones, see the
  [Package Refactoring](https://developer.android.com/jetpack/androidx/refactor) page.

- Unlike the Support Library, `androidx` packages are separately maintained
  and updated. The `androidx` packages use strict [Semantic Versioning](https://semver.org/),
  starting with version 1.0.0. You can update AndroidX libraries in your project
  independently.

- [Version 28.0.0](https://developer.android.com/topic/libraries/support-library/revisions#28-0-0)
  is the last release of the Support Library.
  There will be no more `android.support` library releases.
  All new feature development will be in the `androidx` namespace.

| **Note:** Jetpack libraries don't send any user data to a backend service of any kind. This means that integrating a Jetpack library into your app has no impact on your app's [Data safety form](https://developer.android.com/guide/topics/data/collect-share) in the Play Console.

## Using `androidx` libraries in your project

See [Migrating to AndroidX](https://developer.android.com/jetpack/androidx/migrate) to learn how to migrate an existing project.

If you want to use `androidx`-namespaced libraries in a new project,
you need to set the compile SDK to Android 14.0 (API level 34) or higher and set
both of the following Android Gradle plugin flags to `true` in your
[`gradle.properties`](https://developer.android.com/studio/build#properties-files) file.

- `android.useAndroidX`: When this flag is set to `true`, the Android plugin uses the appropriate AndroidX library instead of a Support Library. The flag is `false` by default if it is not specified.
- `android.enableJetifier`: When this flag is set to `true`, the Android plugin automatically migrates existing third-party libraries to use AndroidX dependencies by rewriting their binaries. The flag is `false` by default if it is not specified.

| **Note:** Libraries in `androidx` officially support the [Gradle](https://gradle.org/) build tool with [Android Gradle plugin](https://developer.android.com/build/releases/gradle-plugin) and don't test or maintain compatibility with any other build configuration.

## API Reference

All the packages and classes in the `androidx` namespace can be found in the
[AndroidX reference section](https://developer.android.com/reference/androidx/packages).

## Additional Resources

Learn more about components on the Jetpack [home page](https://developer.android.com/jetpack).
For more information about the package refactoring from the Support Library
to `androidx`,
see [the blog post](https://android-developers.googleblog.com/2018/05/hello-world-androidx.html)
on that topic.