These are all the devices compatible with iOS 18 and iPadOS 18

Enlarge (credit: Apple)

Apple's new iOS 18 and iPadOS 18 updates are mostly good news for users of older Apple devices—with the exception of 2018's sixth-generation iPad, the new updates will run on all the same hardware that can run iOS 17 and iPadOS 17.

For iPhones, that will cover everything from the iPhone XR/XS and newer, including the second-gen iPhone SE; the seventh-gen iPad and newer; the third-gen iPad Air and newer; the fifth-gen iPad mini and newer; all 11-inch iPad Pros; and the third-gen 12.9-inch iPad Pro and later. Here are the full support lists:

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  The iOS 18 support list. [credit: Apple ]

It's a bit odd that the seventh-gen iPad makes the cutoff while the sixth-gen model does not, given that both use the same Apple A10 processor. But the seventh-gen iPad has 3GB of RAM instead of 2GB. This is the same amount as the third-gen iPad Air and fifth-gen iPad mini—apparently that extra gigabyte is crucial for running iPadOS 18's new features.