Did the dealer ask you about updating anything, tell you about it & give you the choice etc?
I know what you mean, it is safer to wait until the newer bms has been out a while.
Oh, did you get the obd2 versions before and after the update then, interesting to know what they were/are. So they were the only 2 modules updated to provide the comfort pack 2?
I know what you mean, show the user something - a voltage, but not the actual capacity (in kWh) so that they won't know when they've got less than 70% to make a warranty claim lol