Apple has announced that its upcoming iOS 27 will maintain compatibility with all iPhones that currently run iOS 26, ensuring that no models are left behind this year. This includes the iPhone 11 lineup, which was first released in 2019. The new operating system was unveiled during Apple's WWDC 2026 keynote and will be available as a developer beta immediately, with a public beta expected later this summer and a general release scheduled for the fall. The compatibility list for iOS 27 includes a wide range of models, from the iPhone SE (2nd generation) to the latest iPhone 17 Pro Max. However, while iOS 27 can run on devices dating back to 2019, not all features will be accessible on older models due to hardware constraints. Apple has increasingly linked advanced features to newer devices, particularly those with more powerful processors and memory. Users can verify their device model by navigating to the Settings app, tapping General, and selecting About.