Following the release of iOS 16.5 on May 18, Apple has now shut down the iOS 16.4.1 version verification channel. Now that iOS 16.4.1 is no longer signed, iPhone users cannot downgrade to this software version.
Apple generally stops signing older versions of iOS after a new version is released to encourage users to keep the operating system up to date.
Apple iOS 16.4.1 was released on April 8, a minor bug fix update released less than two weeks after the release of iOS 16.4, which introduced new emojis, Safari Web push notifications, phone voice isolation, and more.
Apple iOS 16.5 is the current public release of iOS and brings some important bug fixes and some new features, including a dedicated “Sports” tab in Apple News and a Pride Collection wallpaper for the lock screen.
