Apple released iOS 10.1.1 this morning. It seems to be relatively minor, but you’ll probably want to install it just to be on the safe side.
According to Apple, iOS 10.1.1 “fixes bugs including an issue where Health data could not be viewed for some users.” That could be a big deal, depending on how much you use Health.
iOS 10.1.1 fixes Health
If you’re like me, for example, and open it once every few months just to see how far you walked on a given day, then it’s not a big deal. If you have it linked up with devices that are actually helping you manage your health and trying to keep you alive, well, you need to see that data.
The update can be applied over the air now.
Article source: http://www.technobuffalo.com/2016/10/31/ios-10-1-1-update-out-for-all-get-it-now/