I spent ages going through every single option and to the best of my knowledge, the changes are:
* Minor change of a French voice prompt for the voice command system
* Minor bug fix with changing the volume during phone calls
* Minor bug fix with button controls after a phone call is finished
* Minor bug fix with noise that can be heard while connected to the BMW TFT-display
So that last one may be most relevant to us. Let me know if you find any other fixes ;-)