On your iPhone, go to Settings > General > About and look at Model Name. If your phone isn't on the compatibility list, it will keep receiving iOS 18 security patches for a while, but you won't see ...

Early in the iPhone’s life, Apple made only one model for everyone. Today, the company releases four flagships every year and also offers the iPhone SE and older models. It’s a lot to keep up with, ...

Note that simultaneous releases of iOS 18 and iOS 26 versions won’t continue indefinitely. Apple usually runs the two ...

Every year, Apple releases new versions of iOS and iPadOS, and most years those updates also end support for a handful of devices that are too old or too slow or otherwise incapable of running the new ...