OnePlus 8, OnePlus 8 Pro, and OnePlus 8T are currently in OxygenOS 12 closed beta program. The OnePlus 8 series is also running the December 2021...
Download ColorOS 12 Open beta 1 C.09 for Oneplus 9R based on Android 12. Oneplus 9 & 9 pro just got the stable update of ColorOS...