(From here, translation via Google Translate.)
Android 9+. Based on Google Camera 7.3.
The new lib is "TN 1605" (the last TN was named 1405). The new lib as a whole in processing is largely similar to the past: in comparison with Google, the lib is more natural, without the pronounced HDR effect, but now without the modification of "contrast1", accordingly it is too much darken with a bright light source in the frame (as the previous one did ) - will not be.
Do a clean install to avoid issues.