Apple ends iOS 17.2.1 signing, encourages users to keep system updated

According to news on January 31, Apple stated in an announcement today that it has decided to terminate its support for iOS Signing work for version 17.2.1. This means that those users who have already upgraded to a newer version will no longer be able to downgrade to iOS 17.2.1.

The decision comes shortly after Apple released iOS The 17.2.1 update has only been available for less than ten days. Apple rolled out the update on January 22 with build number 21C66. This update focuses on fixing some important bugs and specifically addresses the issue of battery draining too quickly in certain situations.

# According to the editor’s understanding, Apple’s move to stop signing old version updates is consistent with its consistent policy. After launching a new iOS version, Apple typically stops signing older versions after a period of time. This is done both to encourage users to keep their operating systems up to date to ensure optimal performance and security, but also to Prevent users from downgrading to older iPhone operating systems that may have security vulnerabilities.

In addition to iOS 17.2.1, Apple also stopped signing iPadOS 17.2 at the same time. Additionally, for those unable to upgrade to iOS due to hardware limitations 17 devices, Apple has accordingly stopped signing its older versions of iOS/iPadOS 15.8 and 16.7.4.

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