Android Studio 3.3 has been released to the stable channel. Download it here.
Android Studio 3.4 is currently in the Beta channel.
Android Studio 3.5 is currently in the Canary and Dev channels.
This page provides a summary of the new features and changes in these preview versions.
For the latest news on releases, including a list of notable fixes in each release, also see the Release updates.
If you encounter any problems using a preview version of Android Studio, please let us know. Your bug reports help to make Android Studio better.
Android Studio 3.5
This section provides a summary of the new features and changes in Android Studio 3.5.
Apply Changes lets you push code and resource changes to your running app without restarting your app—and, in some cases, without restarting the current activity. Apply Changes replaces Instant Run with a completely new approach for build optimization. Instead of rewriting the bytecode of your APK during build time, Apply Changes redefines classes on the fly by leveraging the runtime instrumentation supported in Android 8.0 (API level 26) or higher.
In addition, Android Studio now prompts you to decide whether to restart your app or activity when it detects that changes are not compatible with Apply Changes. This extra control should provide you with a more consistent and predictable experience compared to the behavior of Instant Run.
To use Apply Changes, do the following:
- If you want to apply only your code changes without restarting the current
activity, click Apply Code Changes or press
If you want to apply your resource and code changes without restarting your app, click Apply Changes or press
This restarts the current activity without restarting your app.
- Apply Changes is only compatible with devices running Android 8.0 (API level 26) or higher.
- Like with Instant Run, certain code changes cannot be applied until the
app is restarted, including the following:
- Adding or deleting a class, method, or field
- Changing the manifest
- Changing method signatures
- Changing modifiers of methods or classes
- Renaming classes
- Changing class inheritance
- Adding or removing a resource
- The speed of Apply Changes can sometimes be slower than Instant Run. The initial priority was for stability, and we'll continue to improve performance throughout the coming months.
- For debugging, Apply Changes is currently only supported on Android 9.0 (API level 28) or higher.
- You might see unexpected behavior if you use custom classloaders other than the system and application thread context.
- Apply Changes is not compatible with x86_64 emulator images.
Android Studio 3.4
This section provides a summary of the new features and changes in Android Studio 3.4.
New lint check configuration
lintChecks: This is an existing configuration that you should use only for lint checks you want to run when building your project locally.
lintPublish: Use this new configuration for library projects in which you want to include your lint checks in the published AAR. This means that projects that consume your library also apply those lint checks.
Resource management is a new tool window for creating, managing, and using resources in your app. This tool window allows you to do the following:
- Bulk import: You can now import multiple drawable assets at once by either
dragging and dropping them into your Resources tool window or the
Resource management import wizard. The wizard can also convert your SVG
- Drag and drop assets: From the Resource management tool window you can drag and drop drawables onto the Layout Editor design and text view surfaces.
- View alternative versions: You can now view alternative versions of your resources by double-clicking a resource within the Tool window. This view shows the different versions you have created and the qualifiers that were included.s
- Tile and list views: You can change the view within the tool window to help visualize your resources.
If this tool window does not appear in your Canary build, you can access it by selecting View > Tool Windows > Resources.
Updated Project Structure dialog
Android Studio 3.3 Canary 4 introduces updates to the Project Structure dialog (PSD). Select File > Project Structure from the menu bar to manage how your project is configured using the following new features:
- Visualize the actual structure of a project, as resolved by Gradle as a project sync. For example, you can visualize the dependency graph of each module.
- Get notifications when new versions of your library dependencies are available.
- Configure a project through the dialog UI, without manually editing
Re-import Gradle project
If a library does not appear in Android Studio, you can now re-import the Gradle project by selecting File > Re-Import Gradle Project.
When Android Studio syncs a project for the first time, it downloads Gradle project dependencies. If the linked libraries are not successfully downloaded, Android Studio will not look for those sources again during subsequent sync operations. Not scanning during sync operations was necessary to improve the performance of Gradle sync, but might cause Android Studio to not be able to open sources for the missing libraries.
R8 enabled by default
R8 is a new tool for code shrinking and obfuscation that replaces ProGuard, and
it's enabled by default. If you experience issues with R8, please
report a bug.
You can disable R8 by adding the following to your project’s
android.enableR8 = false
Support for AARs
R8 now supports Android library projects.
If you experience issues using R8 when building AARs, please
report a bug.
You can disable R8 for only your Android library projects by adding the
following to your project’s
android.enableR8.libraries = false