According to the information, the Paranoid Android team has released the builds of Paranoid Android Sapphire based on Android 12 for the OnePlus 7 Pro, OnePlus 7T, Xiaomi Mi 10T and Xiaomi Mi 10T Pro.
If you have any one of the above devices and want to get in hand with Android 12, check below the download links via XDA. Where you find the ROM zip and detailed step-by-step installation instructions. The ROM is based on the Code Aurora Forum Android base and incorporates the latest performance and battery optimizations for Qualcomm platforms.
Download Paranoid Android Sapphire Alpha:
Once you have downloaded the ROM, put the zip file in the root directory of the internal storage and reboot to the recovery. Select “fastboot update aospa-*-image.zip” from within the recovery to initiate the installation. After flashing the ROM, wipe user data and reboot the device.
Paranoid Android Sapphire Alpha 1 is now available for the OnePlus 7 Pro!
— Paranoid Android (@paranoidaospa) December 25, 2021