iOS versions: Explore every iOS version from day one to today

Macworld
iOS is at the heart of the iPhone experience. It’s the operating system on which everything else sits, while also delivering plenty of features and dedicated apps built by Apple itself.
Every year (usually in September) Apple adds new features to compatible iPhones with an update to iOS, and in the months that follow more features arrive. If you want to know what the latest version of iOS is, or if you’ve ever wondered about when versions came out and what features they brou