I’m still on 2019.28.2.5 also. Last week mobile service came out to replace the passenger door handle and had to download new firmware in order to have the door handle operate. The download was still 2019.28.2.5. I commented about this so the tech had another download sent to the car. Again, it was 2019.28.2.5.
The tech looked into it and was told that (as of last week) this is the most current version for my car.
Back in July I was told my car was selected (without asking me) to be s part of a special BMS firmware test and that the firmware on my car is unique. Personally, I think that is BS, but I’ve been told this 3 times now. Maybe that it is the reason we are not getting ver. 10.