https://arstechnica.com/gadgets/2021/09/android-12-is-reportedly-due-out-on-october-4/

Android 10 was released on September 3, 2019, and Android 11 came out on September 8, 2020. So where is this year's Android 12 release?

Instead of the final Android 12 release this month, Google pushed out Android 12 Beta 5 and said the final release was "weeks" away. A new report from XDA Developers' Mishaal Rahman claims to narrow things down a bit, saying that Monday, October 4, is the magic date.