So far, the latest updated version of Android is Android 13. Although it is an updated version and announced correctly, this operating system has not been used in any phone.
Oppo Reno8 Lite comes with Android 11, which supports all the features of Color OS 12. But the phone is not given the benefits of Android 12, and you will not get the benefits of Android 13 in the phone because the Android 13 operating system has not been released yet. But it is expected to be released very soon.