I was told of it much earlier - basically 5 hours of software updating.
No material impact post update except for the few observations i have (so far):-
a) when car is locked and keys are used to open the boot only, the passenger door will unlock [Previously dont recall this being the case previously]
b) when you toggle between eco-pro/comfort/sports mode etc, there's a big more time lag felt to kick in and certainly more time lag for the dashboard to flash the chosen mode
c) when you sit at the driver's, prior to ignition, you will see an illuminated 'BMW' font at dashboard control (ie between the rpm/speedometer) which dissappears after ignition