Oppo has been mostly sticking the update schedule although the timeline has been through several iterations in recent times which makes it difficult to follow. You’d better check out the Oppo official Community forum for the latest updates.
According to the resource mentioned below the stable Color OS 12 updates based on Android 12 are now officially available for the following devices across the regions listed below:
- OPO F19 Pro Plus 5G (Firmware Version C.14)
- OPPO Reno 6 Z 5G – (Firmware version C.14)
- OPPO A73 5G – (Firmware version F.14)
If your device is listed on the list , go to Settings > Software Update to verify if your device has been updated. Because it is a staged update it could take a couple of hours to reach your device.