iPhone Update: Urgent Security Fix Required Now

Here’s a breakdown of the details from the text, answering the question of which iPhones are affected by Apple iOS 26:

* Compatible iPhones: All iPhones beginning with the iPhone 11 are compatible with iOS 26.
* Incompatible iPhones: The iPhone XS, iPhone XS Max, and iPhone XR are not eligible for the iOS 26 upgrade. They receive updates within the iOS 18 cycle (specifically, iOS 18.7.3 and the upcoming iOS 18.7.4).
* Urgency: Hundreds of millions of iPhone users must upgrade to iOS 26 or remain on older, less secure software because Apple stopped releasing updates for older models within the iOS 26 cycle. The latest security updates are only available through iOS 26 for compatible devices.