During the Worldwide Developers Conference (WWDC) in June, Apple introduced new features for iOS 27, which is set to launch this week after the iPhone 18 event on September 9. The software update is already available in both public beta and developer beta versions, allowing users to test its features before the official release. Many iPhone users are curious if their devices will support iOS 27. According to reports, the update will be compatible with a wide range of iPhone models, including the iPhone 17 series, iPhone 16 models, iPhone 15 models, and several older models like the iPhone 14, 13, 12, and 11 series. However, the iPhone X, XR, XS, XS Max, and second-generation SE models will not be supported. Apple has changed its naming convention for operating systems, starting with iOS 26 in 2025 and skipping iOS 18. This change is part of a branding strategy to align the software version numbers with the upcoming calendar year, similar to how car manufacturers name model years. This does not mean iOS 26 was the 26th version in Apple’s update history, but rather a rebranding to simplify the naming across all of Apple’s platforms. Apple typically releases new operating systems in three stages: developer beta, public beta, and the final general release. The first iOS 27 developer beta was made available on June 8 during WWDC 2026, followed by several updates to address bugs and improve the user experience. In July, the public beta was released, allowing compatible iPhone users to test the software. The official release of iOS 27 is expected in September 2026. It is important to note that beta versions of software are not the final product. These early versions are used to gather user feedback and identify bugs before the official launch. For example, during the iOS 17 beta in 2023, Apple temporarily moved the "End" button during calls to the right side of the screen. After feedback from testers, the company moved it back to the center before the public release. While public beta versions allow users to try out new features, Apple recommends waiting for the stable, final version of iOS for a smoother experience.