WTF, Apple? My iPhone SE & iPod Touch are on iOS 10.1.1. iTunes acknowledges this as fact yet says there's an update to take them up to iOS 10.1.1. Then when I try to humour iTunes & go thru with the "update" it crashes with an unspecified server error. Stupid Bastids.
Update: on Nov 9, Apple released an iTunes-only iOS 10.1.1 update to iOS 10.1.1, but with a different build number. This apparently fixes things that probably aren't broken on my iOS devices.
Apple here's a hint: if it's an update then make it available OTA & give it a different version number.
Numpties.