My 1050, which is enrolled in the beta program, updated itself to 12.16 when I synced it yesterday. However, when I look at the beta forum this morning, the notification about 12.16 has disappeared (it was there yesterday), and there is text at the top of the forum saying "This section is currently in a read-only state while there is no active beta."
Hence I'm asking the question here as I can't ask it there - what's the story with this vanishing firmware version?