iOS system releases 17.2.1 upgrade, stops verifying the old version channel

According to news on December 20, after releasing iOS 17.2, Apple today launched a new upgraded version of iOS 17.2.1 and closed the verification channel for iOS 17.1.1 and iOS 17.1.2. This means that iPhone users can no longer downgrade to these two older versions

In order to ensure the security of the system, Apple has always encouraged users to update their device operating systems in a timely manner. Therefore, when a new version is released, Apple usually immediately closes the verification channel for the old version of iOS to prevent users from downgrading to an unsafe system version

Currently, the latest version that iOS users can upgrade to is iOS 17.2. 1. This release is mainly to fix some unspecified bugs. In the previous version of iOS 17.2, we introduced a new notes application, added support for the spatial audio recording function of iPhone 15 Pro models, and also made important updates to core applications such as Messages and Apple Music

Apple is actively testing iOS 17.3, which is expected to be officially launched in January next year. This upcoming update is likely to bring even more exciting features and improvements

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