If you want to try out some AI features right now, like text message summaries and voice memo transcriptions, you can try out the developer beta of iOS 18.1, but you'll need either the iPhone 15 ...

Make sure your iPhone is running iOS 16.4 or later by going to Settings -> General -> Software Update.If it is, and you have just completed steps 1-5 to register a developer account, restart your ...

From here, your iPhone should pull up iOS 17.7, the latest version of iOS 17. However, you should see an option at the bottom of the screen to Upgrade to iOS 18 . Tap that, then choose Update Now ...