Today Google has outed the fifth and final public beta build of Android 12 for supported Pixel devices. This has "release candidate" status, and the next build after it will be the final one that goes out to all of the supported Pixels out there, not just those enrolled in the Beta program. This is also the first beta that you can install on the newly released Pixel 5a, because that's just gone on sale. If you have one and want to run the fifth Android 12 beta on it, you just have to enroll it in the Android Beta program by going to this page. Once you do that, you'll receive an...
Source: https://www.gsmarena.com/google_releases_fifth_and_final_android_12_beta_now_available_for_the_pixel_5a_too-news-50854.php