Today, Google has begun rolling out the third release of the Android 11 Developer Preview to several Pixel devices. Unfortunately, we don't recommend anyone flash a Developer Preview build to your Pixel if it is currently your primary device, as it perhaps may not be stable enough. The update is dated on April 23 with a build number of RPP3.200230.017 and is security patched up to April 2020. Is is running with Google Play services 20.12.14. Google Pixel 3a If you are already running the Android 11 Developer Preview, Google offers the ability to update to DP3 via OTA update....
Source: https://www.gsmarena.com/google_releases_android_11_developer_preview_3_for_pixel_devices-news-42843.php
