Zhongguancun online news: Apple has recently opened the iOS 14 downgrade channel for some models, but according to the latest news, Apple has long stopped the security update of the iOS 14 operating system, and users choose to keep the version and avoid upgrading only "temporarily".
The last iOS 14 security update (iOS 14.8.1) was released in October, there has been no update for 3 months, and all current iOS 14.8 models no longer offer the update option for iOS 14.8.1, and can only be upgraded to iOS 15.
According to statistics, only 70% of users have upgraded to the iOS 15 operating system, which is much lower than the previous iOS 14 adoption rate. Although there were problems such as not finding the SIM card and poor signal when it was first released, it has long been fixed.
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![iOS 15 upgrade rate, unprecedented dismal, do you dare to update?[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)