I chose not to update after reading all the bad press. Decided to wait until SONOS would have fixed things. Just now I discovered that the SONOS app on my iPhone had updated ALL BY ITSELF. To me that is unacceptable, it’s a total mess now, can’t play my music library (although that feature was already missing since last week), can’t find my favourite radio stations, alarms etc.. Besides that, it is all totally counter-intuitive. Cannot believe SONOS forces this update on us. This is NOT OK SONOS. 
Has this happened to others; having update installed without giving permission???