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.

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  The Calculator app is finally coming to iPad. [credit: Samuel Axon ]

CUPERTINO, Calif.—After going into detail about iOS 18, Apple took a few moments in its WWDC 2024 keynote to walk through some changes.

There are a few minor UI changes and new features across Apple's first party apps. That includes a new floating tab bar. The bar expands into the side bar when you want to dig in, and you can customize the tab bar to include the specific things you want to interact with the most. Additionally, SharePlay allows easier screen sharing and remote control of another person's iPad.

But the big news is that the Calculator app we've all used on the iPhone to the iPad, after years of the iPad having no first-party calculator app at all. The iPad Calculator app can do some things the iPhone version can't do with the Apple Pencil; a feature called Math Notes can write out expressions like you would on a piece of paper, and the app will solve the expressions live as you scribble them—plus various other cool live-updating math features. (These new Math Notes features work in the Notes app, too.)