While we don't yet know the new iPhones Apple will be dropping this fall — though there are iPhone 17 rumors — we do know, per Apple's site, that the phones listed below will be compatible with iOS 26. Basically, if you have an iPhone that was announced in 2019 or later, you're in the clear:

The newest iPhone software release could be the last big update before Apple moves to the next-generation iOS 26. Here’s what’s in it.

Many of those bugs were inside frameworks and other technologies that are used across Apple’s apps, he noted – though there is no evidence they have actually been exploited. The update comes soon after Apple made the first public version of iOS 26 available.