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Apple stops signing iOS 16.5.1
02 August 2023, 12:23
Apple has stopped signing iOS 16.5.1.
This means that people who have upgraded their devices to iOS 16.6 can no longer downgrade to an older version.
The decision to interrupt the signatures of the various iOS has impact on users who jailbreak. It also avoids the risk of users installing outdated and unsafe software.
iOS 16.5.1 was released on June 22. The update provided important security fixes and addressed a bug that could prevent charging with the Lightning to USB 3 Camera Adapter.
iOS 16.6 was released last week. It introduces the iMessage Contact Key Verification feature that Apple announced at the end of last year. This new feature allows users exposed to serious digital threats (journalists, human rights activists, government officials) to receive automatic alerts if state-sponsored attackers or other malicious actors manage to breach cloud servers and intercept encrypted communications.
