Apple iOS 26.4.2 New iPhone Software: Should You Upgrade?

This is just the same as other iOS 26 updates, that is, it’s for all phones from the iPhone 11 and more recent. The latest models, including the iPhone 17 series, iPhone 17e and iPhone Air, are all covered by iOS 26.4.1. It’s also been released for those users who haven’t updated to iOS 26 in the form of iOS 18.7.8.