12.7 just installed on my car (see signature)
Got it pushed by SC this morning, because i was complaining about the WebBrowser not working since the day I got V10.
Webbrowser is still not working, will probably have to bring it in for a deeper check.
Update: this morning I tried to connect to the car via the mobile app (to pre-heat) and it couldn't connect. Went down in the garage and my MCU was DEAD! blank screen! IC was OK, I could open and close doors OK, key-fob was working, but I could not drive the car because I have PIN2Drive and the blank screen was preventing me from inserting the PIN.
Called my ranger, he opened a "position" for me with an engineer, and told me to wait for the engineer to call me back.
2 hours later the app suddenly connects to the car. I go down and the MCU is back alive,
but extremely slow. After a touch it took anywhere from 5 to 40 seconds before getting a reaction. Inputting the PIN took the best part of 4 minutes, having the radio to play music took another 2 minutes, and removing P2D another 2-3 minutes.
But the car was driving, IC was working OK, and also AP computer was tip-top.
Another hour passes by, and I get the call from the Tesla engineer. He walks me through a number of repeated resets (brake pedal + scroll wheels), and we finally get it working after extracting my USB stick with music and resetting one more time. Now the MCU is again fully responsive and quick as before, but the web browser is still kaputt. The engineer tells me to leave the car, that he will look through my log files and see what he can do.
Another hour, and he calls me back, ask me to try the web browser, and LO and BEHOLD! it works again! I ask him what has he done to make it work again and he tells me that he has: "freed up some space" (SIC!)
So, now I'm on 12.7, everything is working fine with the MCU and I have back my browser!
Thank you TESLA ! your support was quick and straight to the point, with a very no-nonsense approach and a great kindness both from the ranger and from the engineer.