Android Studio 4.2 Beta 1 is now available in the Beta channel.
If you have Android Studio set up to receive updates on the 
Beta channel, you can get the update by choosing 
Help > Check for Updates (
Android Studio > Check for Updates on macOS). Otherwise, you can 
download it here.
For information on new features and changes in all preview builds of Android Studio 4.2, see the 
Android Studio Preview release notes. For details of bugs fixed in each preview release, see previous entries on this blog.
We greatly appreciate your bug reports, which help us to make Android Studio better. If you encounter a problem, let us know by 
reporting a bug. Note that you can also 
vote for an existing issue to indicate that you are also affected by it.
General Fixes
  Android Gradle Plugin
- Issue #171364505: Shrinking library with multidex enabled fails (after 4.0 -> 4.1 update)
- Issue #172055303: Disabling android resources in libraries breaks unit tests
C++ Build
- Issue #171300770: NullPointerException in CmakeServerExternalNativeJsonGenerator when refreshing linked C++ projects
Lint
Release Bundle/APKs
- Issue #157584987: Android Gradle Plugin 3.6.x resulting larger .aab on debug build compared to AGP 3.5.x