Apple’s iOS 15.6.1 was pushed to iPhone and iPad users a month ago, and the update comes with important security fixes. However, with the release of the official version of iOS 16, Apple has closed the verification channel for iOS 15.6.1.
Apple iOS 15.6.1 was released on August 17th with overall bug fixes and performance improvements. Apple also fixed two major security holes with updates. Both of these vulnerabilities allow an application to execute arbitrary code with kernel privileges without the user's consent.
Users can no longer downgrade iPhone, iPad, and iPod touch software to iOS 15.6.1. This has immediate implications for users waiting for a jailbreak tool.
However, users still have a way to downgrade from iOS 16 to iOS 15, because Apple also released the official version of iOS 15.7, which is reserved for users who are temporarily reluctant to upgrade to the official version of iOS 16.
The official version of iOS 15.7 fixes security issues for Contacts, Maps, Safari, Safari Extensions, Shortcuts, and WebKit, and addresses multiple kernel vulnerabilities. Apple says one of the kernel vulnerabilities has been actively exploited, so users who cannot update to iOS 16 should install iOS 15.7 as soon as possible, and iPad users should update to iPadOS 15.7.
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