I've had a number of apple devices made unusable by an update to an OS version that it _clearly_ should not be running. That last time was a dumb thumb not thin

I've had a number of apple devices made unusable by an update to an OS version that it _clearly_ should not be running. That last time was a dumb thumb not thinking. It has burned me enough that I'm not even updating my iPad Mini 4 (the newest mini) to iOS 11.