Following the release of iOS 15.0.1 on October 1, Apple stopped signing iOS 15.0, the previously available version of iOS which saw a public release on September 20. Since iOS 15.0 is no longer signed, it is not possible to revert to this version. version if you have already updated to iOS 15.0.1.

iOS 15 General functionality Blue
Apple last week also stopped signing iOS 14.8, which means iOS 15.0.1 is the only version of iOS publicly available right now, and those who have upgraded to iOS 15 cannot downgrade to iOS 14.

Apple consistently stops signing old versions of software updates after new versions are released to encourage customers to keep their operating systems up to date.

iOS 15.0 marks a major version update introducing Focus Mode, Live Text, Siri on-device, iCloud +, Safari changes, and more, with details available in our iOS 15 summary.

iOS 15.0.1 introduced a fix for a bug that prevented an authenticated Apple Watch from being used to unlock an iPhone 13 model while wearing a face mask. He also fixed a bug that could cause a storage full alert to appear incorrectly in the Settings app and fixed a bug with audio meditations for Fitness + subscribers.

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