Google kicked-off the Android 11 Developer Preview Program back in February 2020 and released few builds for the developers to test and prepare their apps and games. Just a few days back the company released Android 11 Developer Preview 3 (DP3) that brings a number of productivity improvements and fixes.
Now the company has released another Android 11 Developer Preview build (DP4) and updated the release schedule and delayed the release of the first beta.