Unlike last year, several iPhone models won't be eligible to download the newest iOS when it makes its debut this fall. This trio of models first released in 2018 won't be coming to the iOS 26 party:

As part of iOS 26's interface changes, your iPhone lock screen can take on a new look with spatial photos available as the background image for your phone and an adaptive time feature that adjusts the look of the on-screen clock to fit with the other visual elements. We go through all the iOS 26 lock screen changes.