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February 3, 2026, 4:14 AM EST. Apple has stopped signing iOS 26.2, blocking downgrades after the release of iOS 26.2.1. The change, spotted by MacRumors, means users on 26.2.1 cannot revert to 26.2 or any earlier build. The company's latest release notes for 26.2.1 mention AirTag (2nd generation) support and bug fixes, with no public CVEs listed. In addition, Apple has stopped signing several earlier iOS versions following newer rollouts: iOS 12.5.7, iOS 15.8.5, iOS 16.7.12 and iOS 18.7.3, after updates 12.5.8, 15.8.6, 16.7.14 and 18.7.4 were released. The policy is typical when security fixes or stability are deemed ready. Downgrading becomes impractical for most users, as security gaps from older versions remain unpatchable on signed devices.