LOL. Apple never wants to take responsibility for its crappy updates. Once upon a time, Apple's iOS and macOS updates were a thing to behold. Now they're just piles of hooey that need constant tweaks and reboots. Yes, I understand as the systems grow they get more complicated, but why in the world does one app fail after Apple tinkers with the foundation? Why can't they just get it right? We are all in abusive relationships with Apple (and with every other computer giant) who keep us constantly wanting better and more. Glitches happen all the time. That said, how is it possible that NO ONE at Apple noticed or bothered to say anything about how slowly mail uploads email or about the horrible battery life or about any of the other several tech glitches that make iOS 11 just like every other iOS update—useless and frustrating? I stopped using the mail app because since iOS 7 it won't handle threading correctly and NO ONE has been able to debug this? How hard is it to figure out a threading issue that we all have? Um, not that hard. I have an iPhone 6. I'll never buy another iPhone because Apple doesn't give a fig about the software. It only cares about gouging us by charging us $1,000 for a pretty phone whose insides might be superiorly advanced but whose operating system continues to SUCK with every passing update. I feel the same about the computer line of MacBooks as well. I love Apple and have never owned anything but, but this is getting absurd. F'ing fix the glitches before they f'ing happen and before they roll out to millions of users. It's insane really.