Apple today stopped signing iOS 26.2, which means that iPhone users who have updated to iOS 26.2.1 are no longer able to downgrade to the earlier version of iOS. Apple released iOS 26.2.1 last week with support for the AirTags 2.


Software "signing" means that it has passed the server-side verification check that Apple performs when a user downloads a new version of iOS on an ‌iPhone‌. An update can't be installed unless it passes the verification check.

Apple does not show users earlier versions of iOS once an upgrade has come out, but when software is still signed, it is possible to downgrade using the macOS Finder on a Mac or the Apple Devices app on a Windows PC. Until today, users would have been able to downgrade from iOS 26.2.1 to iOS 26.2 if desired for some reason.

Unsigning software prevents Apple customers from installing outdated, less secure versions of iOS, and Apple typically stops signing an update a week or so after new software comes out.

Apple has also stopped signing several older versions of iOS provided for devices unable to update to iOS 26, including iOS 12.5.7, iOS 15.8.5, iOS 16.7.12, and iOS 18.7.3. iOS 12.5.8, iOS 15.8.6, and iOS 18.7.4 were released last week, while an updated version of iOS 16 came out today.
This article, "Apple Stops Signing iOS 26.2, Blocking Downgrades From iOS 26.2.1" first appeared on MacRumors.com

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Apple today released macOS 11.7.11, watchOS 10.6.2, and watchOS 9.6.4 for older Macs and Apple Watches that are not able to run the current watchOS and macOS 26.


According to Apple's release notes, the updates extend the certificate that features like device activation, iMessage, and FaceTime use. The certificate update ensures that these functions will continue to work after January 2027.

On the Mac, the update can be installed through the Settings app, while on the Apple Watch, the updates can be installed through the Apple Watch app on iPhone.

watchOS 9.6.4 and the update that preceded it are the final versions of watchOS that support devices like the ‌iPhone‌ 8, ‌iPhone‌ 8 Plus, and ‌iPhone‌ X, which are limited to iOS 16 and cannot be updated to iOS 17. watchOS 10.6.2 is available for the Apple Watch Series 4, Apple Watch Series 5, and the original Apple Watch SE.

Update: Apple has also released macOS Catalina Security Update 2026-001 and watchOS 6.3.1 for older devices.


This article, "Apple Releases macOS 11, watchOS 10, and watchOS 9 Updates to Keep iMessage and FaceTime Working on Older Devices" first appeared on MacRumors.com

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