I keep seeing updates going as high as 2108.26.1. My software level has been 2018.24.7 since delivery on 07-17-2018. This morning the car downloaded new software update 2018.24.8. I can't really see an difference between 24.7 and 24.8. So, does anybody know if there are any differences between the two? And, why do some people get 26.x downloaded, when some people, like me are going from 24.7 to 24.8? In addition, why are some cars still stuck with 24.1? I reallize that these are not earth shattering issues, but it would be nice to get some factual information. Also - something that is really needed is a backkup alarm that warns you when a car or pedestrian is approaching behind you.