iPhone or iOS has the highest upgrade percentage of OS. ~85%+ are on iOS 18 or higher. Liquid Glass iOS is the first time update has been slower. But Apple gene

iPhone or iOS has the highest upgrade percentage of OS. ~85%+ are on iOS 18 or higher. Liquid Glass iOS is the first time update has been slower. But Apple generally achieve near or over 80% of latest iOS by end of its cycle i.e coming August / September. One could argue Safari on iOS being like macOS where it could be updated standalone, but current rate isn't too bad.