According to the iOS 17 landing page on Apple's website, the following iPhone models will get the update when it's available:iPhone 14iPhone 14 PlusiPhone 14 ProiPhone 14 Pro MaxiPhone 13iPhone 13 miniiPhone 13 ProiPhone 13 Pro MaxiPhone 12iPhone 12 miniiPhone 12 ProiPhone 12 Pro MaxiPhone 11iPhone 11 ProiPhone 11 Pro MaxiPhone XSiPhone XS MaxiPhone XRiPhone SE (2nd generation or later)It's a long list, but also one that leaves the iPhone 8, iPhone 8 Plus and the iPhone X behind. That means if you currently have those iPhone models, iOS 16 is your last major OS update. You will likely receive security updates for the near future, but any new features that are part of iOS 17 or later won't come to your phone.