Update on my post #55 about my MY's severe and dangerous late braking well after passing a potential incident. It has not happened again, so I assume that there was a bug in a software release that was then fixed in the update issued a few days later.
As compensation, the matrix headlights update seems to work well. Maybe there's some hope for the wipers, although being better able to detect when it's raining is a waste of time - it's water on the screen itself that should be the trigger.