iOS 15.6.1 was released to iPhone and iPad users a month ago, and the update came with important security fixes. However, with the official release of iOS 16 last week, Apple has stopped signing iOS 15.6.1 – but there’s still a way to downgrade from iOS 16 to iOS 15.
iOS 15.6.1 no longer being signed
According to Apple, iOS 15.6.1 has fixed two major vulnerabilities that let apps execute arbitrary code without the user’s consent. The update was made available to the public on August 17. But of course, these security fixes (in addition to new ones) are all included with iOS 16, so it’s no surprise that Apple has stopped supporting iOS 15.6.1.
