Like clockwork, Apple releases a major revision of iOS every year. The company formally unveils the new operating system for iPhone and iPad at WWDC in June, followed by a beta testing period and then a final release in the fall (typically in September, just before the new iPhones hit the shelves).
One never really knows exactly what new features and design changes Apple will bring until the company gets on stage at WWDC, but the rumor mill churns early and often. After all, iOS is one of the widest-used and most influential consumer operating systems in the world. We have our own wishlist of iOS 13 features, but we’ve also collected all the rumors about iOS 13 here.