I haven't been updating my iOS because the last rumor I heard was some glitched update that affected losing photos. I'm in a situation where I feel I need to update now because Discover cards only work with Apple Pay on iOS 9 or later. If I make this huge jump in updates, will all the preceding updates be taken into account (8.1.2 all the way to iOS 9) or will I just have iOS 9.1? Are there any problems with iOS 9.1 on the iPhone 6+ such as losing photos?