I agree with what has been said endlessly. Fine if you don't want to let users downgrade, but don't be so annoying to update. I have both my iPad and my iPhone on iOS 9 and the daily pop ups are annoying. They should give me the chance to at least stay on earlier versions without bothering me, if you don't want to let me downgrade.
I admire your strength. I lasted for a few months but finally gave in, when the phones started to become buggy in some ways. My wife has an iPhone 7 and things started not working well (like calendars and such).
Steve, where ARE you, Apple NEEDS you back to rid the federation of the dark forces