I always do a reboot after an update. This reboot near the end of the update isn't new or news, it's always been a part of the update process. Why I still reboot is that in the absence of console logs to see what's actually happened, all I can assume is that this reboot happened near the end of the update process, not necessarily right at the end. Quite often updates on other devices still have little things that move into place, setting that get finalized, etc after that reboot. Maybe that kind of thing doesn't happen with our tesla's, or maybe it does - we don't know. So I do another reboot just to play it safe. And for what it's worth, after every update I see people reporting various little problems, that are fixed by rebooting - I don't have those little problems though. 32 updates in the last 16 months!