The iOS 18 public beta is available for iPhone right now. Here's how to download it and which models support it)
Briefly

Apple's iOS 18 introduces a variety of new features including a customizable home screen, enhanced photos app, revamped lock screen, and significant AI updates to improve app functionality.
To participate in the beta testing for iOS 18, users must back up their devices, ensure they’re using compatible models, and are prepared for potential bugs.
Read at ZDNET
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