I got this same "uconnect box" update a week ago, and I was also confused because none of the version numbers I could find changed. I guess we were supposed to know it was a different kind of update because of the word "box" in the alert message? Sheesh. This was the first OTA update I have received since I bought the truck in April. I've upgraded to S24.13 and later S26.15 via USB, but this was the first OTA update my truck ever received. I see in another thread that there is a new version out S26.17. I guess 26.17 fixes the one minor bug that prevented S26.15 from being generally available, but that's just a guess.