Apple stops signing iOS 15.0 following iOS 15.0.1 release
After the release of iOS 15.0.1 on October 1, Apple has stopped
signing iOS 15.0, the previously available version of iOS that saw a public
release on September 20.
With iOS 15.0 no longer being signed, it is not possible to
downgrade to that version if you've already updated to iOS 15.0.1.
According to MacRumors, Apple last week
stopped signing iOS 14.8 as well, which means iOS 15.0.1 is the only publicly
available version of iOS at this time, and those who have upgraded to iOS 15
cannot downgrade to iOS 14.
Apple routinely
stops signing older versions of software updates after new releases come out in
order to encourage customers to keep their operating systems up to date.
iOS 15.0 marks a major version update introducing Focus Mode, Live
Text, on-device Siri, iCloud+, Safari changes, and tons more.
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 when
wearing a face mask.
It also addressed a bug that could cause the Settings app to
incorrectly display a storage full alert and it fixed a bug with audio
meditations for Fitness+ subscribers.
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