Incremental rollout as usual. That said, if you haven't made the mistake of updating to 9.0 yet then there's NO WAY you should go from 8.7 to 9.1 yet without seeing what happens
Im on 9. Like others no sync with phone. What worked for me was doing a factory reset after upgrading to v9. Then i could sync with phone. Complete pairing now. Lost all info on 820 so i have to reprogram my 820 now.
