https://techcrunch.com/2017/09/12/ios-11-release-date/

Apple is announcing several new iPhones today. But if you already have an iPhone or iPad, chances are you’ll also get something new. The company just announced at its press conference that the new major version of Apple’s mobile operating system will be released on September 19. You’ll be able to download it for free.

Apple first unveiled iOS 11 at its WWDC event back in June 2017. Beta versions of iOS 11 have been around for a few months, and developers have been working on updates and new features for the new operating system.