Apple says the upcoming iOS 26, expected in a polished “release” version in September, will support devices back to the iPhone 11 from September 2019 and second-generation iPhone SE from April 2020—both with A13 Bionic processors. For those who don’t want to wait, the iOS 26 public beta release is now available. 

It previews many updates, including call and text spam filtering, and revamped designs for apps such as Camera, Wallet, and especially CarPlay. Apple has revived the translucent look of the Liquid Glass interface after toning it down in the third beta released for app developers on July 7. Some of the biggest changes in iOS 26 are for the newest models—starting with the iPhone 15 Pro—with upgrades to the Apple Intelligence AI suite, such as live translation and visual search across apps.

But how well will iOS 26 support older devices? To get a sense, I ran formal tests with an SE2 running developer beta 3, and also lived with it as my........

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