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Apple Stops Signing iOS 26.2, Blocking Downgrades From iOS 26.2.1
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.
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