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Some time ago, Apple released the official version of iOS 15.2, and at the same time announced the closure of the verification channel of iOS 15.1.1, that is, users who updated to iOS 15.2 will not be able to downgrade back to iOS 15.1.1 or iOS 15.1, if you find bugs after updating to iOS 15.2 or feel uncomfortable to use, the solution is only to wait until the new version of the update is released, and can not return iOS 15.1.1 or iOS 15.1.
Apple's official version of iOS 15.2 adds a number of new features, including apple music voice control, a new first-level subscription service for accessing music using Siri, app privacy reports, a digital legacy program, and bug fixes for other features on iPhones and iPads.
According to relevant sources, iPadOS 16 and iPad mini 4, iPad Air 2, iPad V and 2015 iPad Pro models will no longer be compatible, in other words, in addition to these models of iPad models can get iPad OS 16 upgrades.
In addition, we can know through the recent report of iPhonesoft that if the content of the report is true, iOS 16 will require A10 chip as the minimum hardware specification to obtain the latest features, and the new features of iOS 16 can be fully expected!