Here is a link to the release notes. Not sure why the in-car ones don’t give this info:
https://www.bmw.co.uk/en/topics/offe...ade-23-11.html
Main one seems to be that the Drive Recorder (if you have it) can now be viewed in the app as well as in car or via a USB stick. The rest looks like ways for BMW to upsell some lighting animations.