https://wccftech.com/android-12-beta-program-for-pixel-phones-finally-comes-to-an-end/

Google launched the June feature drop and Android 12 QPR3 yesterday for Pixel phones. The new feature drop brought a music maker, a digital vaccination card on your home screen, along with a number of additions. Google has now stated that this was the end of the beta program, as Google is now planning on going forward with their Android 13 beta program.

Google posted on its official u/androidbetaprogram Reddit thread and said the following,