Apple pushed the official version of iOS 14.6 firmware for iPhone users last week, which fixed the performance degradation caused by the previous version; optimized the experience of unlocking iPhone with Apple Watch; also added support for some lossless formats and Dolby Atmos spatial audio works, the overall user experience is more complete, but then Apple has pushed the iOS14.7 developer beta firmware. The new iOS15 will also be officially released on June 8. If there is no accident, iOS14.7 will be the last iOS14 version.
Less than a week after the official version of iOS14.6 firmware was pushed, Apple has closed the verification channel for the old version. In other words, users who have already upgraded to the latest official version of iOS 14.6 can no longer downgrade.
Apple's restrictions on firmware have always been very strict, and channel verification is also a major feature unique to iOS. In order to allow users to use the latest functions and avoid the problems caused by the bug vulnerability of the old system, users are often required to update. And after the verification channel is closed, the user can no longer go back to the old version. It is precisely because of such strict restrictions that
ensures an excellent and safe use experience of the iOS system. New systems often have more advanced underlying optimizations. For old devices, the more you upgrade, the more stuck I have ever encountered. Apple's official firmware will be optimized by several test versions before it is pushed, so you can upgrade to the latest version with confidence.