I am waiting on IOS 11. My devices work just fine right now (all are 6 with a couple mini 3's). The update has shown up on some devices, though (a "1" under settings). If I decide to do this at a later date, will it automatically update to 11.XX at the time or does it go through 11 and then the minor updates? How do I get rid of whatever the current update is? Thank you.