Overview
- The update is now available globally for iPhone 11 and newer models, including iPhone SE (2nd and 3rd gen), the iPhone 17 lineup, and iPhone Air.
- Apple confirms there are no published CVE entries for iOS 26.3.1, with matching iPadOS 26.3.1, macOS Tahoe 26.3.1, and visionOS 26.3.1 releases and no Apple Watch update.
- The release expands external display compatibility to Apple’s new Studio Display (2026) and Studio Display XDR in addition to general stability fixes.
- The point update arrived only weeks after iOS 26.3 as Apple continues testing iOS 26.4, with revised third betas issued to developers and public testers.
- Early user feedback highlights lingering issues reported on forums, and there is still no publicly available jailbreak for any iOS 26 version, including 26.3.1.