If Apple follows the same schedule as last year, it will release iOS 18.7 at the same time as iOS 26, that is, about 10 a.m.

Apple iOS 18.6.1 is compatible with all iPhones from 2018 on. That’s the iPhone XS, iPhone XS Plus and iPhone XR models and every phone since. That means the iPhone 11 series, iPhone 12, iPhone 13 and ...

OS 26 is coming and not every iPhone is going to be compatible, meaning they've reached the end of their life.

Apple will release its annual software upgrade this month to replace iOS 18, but we're not going to be getting iOS 19.