According to MacRumors, Apple’s iOS 17 and iPad OS 17 software updates are expected to drop support for the iPhone 8, iPhone 8 Plus, iPhone X, the first-generation 9.7-inch and 12.9-inch iPad Pro, and the fifth-generation iPad Pro. iPad support. Devices in this list were released between November 2015 and November 2017.
If this information is accurate, iOS 17 and iPadOS 17 will not be compatible with most devices with the A11 Bionic chip or older. The only exceptions are the sixth- and seventh-generation iPad models with the A10 Fusion chip and the second-generation 10.5-inch and 12.9-inch iPad Pro with the A10X Fusion chip.
iPhones and iPads with A5 to A11 chips are affected by a bootrom security flaw that Apple cannot patch on these devices because the bootrom runs in a read-only state. The vulnerability allows these devices to be permanently jailbroken on various iOS versions, allowing users to modify the iOS file system.
Bootrom is a piece of code solidified in the read-only area of the iPhone. The code in this area is the starting point of the boot chain and the boot trust chain. It is mainly responsible for loading the subsequent boot chain. The code in this area cannot be updated through the system. to update.
Last year, iOS 16 and iPadOS 16 dropped support for quite a few devices, including the iPhone 6s , iPhone6s Plus , iPhone 7, iPhone 7 Plus, iPhone SE first generation, last iPod touch, second generation iPad Air and fourth Generation iPad Mini.
