Can I update my new iPhone 16 to iOS 18.7.1 or iOS 26.0.1?

I'm a big believer in always updating to the most current iOS version. Staying updated, provides bug fixes, security patches and brings the latest features your phone can support.

It depends on your preference. First off, both have the latest security vulnerability patches so at least go to 18.7.1. Those who are eager for the latest software should go to iOS 26. If you want to wait a bit for bugs to fix, you should stay on 18.7.1. Apple pushes software updates in waves meaning the first wave only appears in Settings for those that want to update. The second wave is by pushing notifications and automatic update users, which you may want to then.