Confirmed and found this weird as I see 49.20 had rolled out to a few cars earlier, but just got 50.6 on the RWD in the last 20 minutes. No love for the AWD yet, but thinking I may go give it a reboot, just because I think weird events might trigger it.
I also suspected we might be getting 50.6 because it's gotten a bit colder down here last weekend and another front tonight. Or it might just simply be time Tesla has decided to roll it out.
Edit - before I could get to the garage - AWD just got SW update notification. Both cars within 45 minutes or so. Will go see if there are any release notes.
Edit 2 - Nothing new in the release notes. Same as previous.
Annoying question, so feel free to ignore, but I was able to go from 46 to 50.6 tonight (finally an update) Anyone know what might have gone on between these releases aside from fart mode and being able to preheat specific seats?