iOS is Apple’s mobile operating system that runs on iPhone, iPad, and iPod touch. Historically, Apple releases a new iOS version once a year, the current version is iOS 10. Here is the complete list of iOS 10 compatible devices.
iOS 11 includes a host of new features and interface changes, including a new file system with the Files app, a new Dock for iPad, a redesigned Control Center, drag and drop, ARKit (an augmented reality platform), Apple Pay in Messages, a redesigned App Store, improved Siri, and much more.
iOS 11 is currently in developer beta and the first public beta should be available s0on. The operating system will likely launch to the general public alongside the iPhone 8 this fall.