But while Apple's new iPhones may be quite different, they all have at least one thing in common: They'll ship with iOS 26, Apple's latest and great(est?) Of course, you won't need to buy an iPhone 17 series device to run iOS 26: Apple is supporting iPhone 11 and newer with this upcoming update. While Apple had been pretty cagey with iOS 26's official release date until now, we can confirm that it's finally dropping: iOS 26 will be available today, Monday, Sept. 15. Additionally, the company's other software updates, including iPadOS 26, macOS 26, watchOS 26, and visionOS 26, are also slated to come out today as well. How to install iOS 26?