iPadOS 19 may end support for the last remaining checkm8-vulnerable iPad, while continuing support for iOS 18-compatible iPhones.
The iPad (7th generation) is expected to lose compatibility with the upcoming iPadOS 19 firmware update, marking the end of support for checkm8-vulnerable devices.
Checkm8-vulnerable iPhones, like the iPhone X, will be limited to iOS 16, while checkm8-vulnerable iPads, such as the iPad (6th generation) and iPad (7th generation), will be limited to iPadOS 17 and iPadOS 18 respectively.
However, all iOS 18-compatible iPhones are expected to support iOS 19, based on reports from internal Apple employees.