http://www.techradar.com/news/ios-11-compatibility-list-does-it-work-with-your-iphone-and-ipad

The iOS 11 software update arrives today, which means anyone who fancies giving Apple's latest software a whirl can do so right now.

The days of the public beta are now behind us, because as of September 19 the final version of iOS 11 has been released by Apple.