
Following last week’s release of iOS 26.4.1, Apple today stopped signing iOS 26.4. Here’s what that means.
Apple no longer signing iOS 26.4 installs
As spotted by MacRumors, Apple stopped signing iOS 26.4 earlier today, which means that it is now impossible to downgrade from iOS 26.4.1 to the previous system version.
Apple usually stops signing older iOS versions for one of two reasons: either the current release is deemed stable enough, or when the updated system version…

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