Unlike last year, several iPhone models won't be eligible to download the newest iOS when it makes its debut this fall. This trio of models first released in 2018 won't be coming to the iOS 26 party:

To try out iOS 26's public beta yourself, signing up and installing it is simple -- just follow these steps: 1. Go to https://beta.apple.com/ and sign up for the beta with your Apple ID. 2. Then on your iPhone, go to Settings. 3. Select General in the list of options. 5. Under Beta Updates, choose iOS 26 Public Beta.

Apple's Liquid Glass makeover and expanded Apple Intelligence tools arrive this fall, but not every phone can make the leap.