Testing with developer and public beta versions went smoothly for even the oldest supported models. But there are safety measures if upgrading to the beta or release version goes awry.

Taking a quick look at Liquid Glass, it looks to be a serious overhaul, but after using it for a while, it actually feels less dramatic, and iOS 26 has plenty of other features we're excited about. Still,

Indeed, Liquid Glass does bring somewhat of a major change to iOS 26, or what we would have called iOS 18 (Apple is switching iOS numbers to years, and iOS 26 will release in the fall). I've been using the developer beta of iOS 26 for some weeks now,