You can download iOS 18 public beta on iPhone right now. Here's how (and which models support it)
Briefly

Apple announced significant updates for the iPhone with iOS 18 at WWDC event - new features include a customizable home screen, Control Center, lock screen, a Photos app overhaul, new Messages enhancements, a Passwords app, and AI updates.
Users can now download a public beta version of iOS 18, but it's advised to backup personal information before trying beta software due to potential bugs; beta versions are intended for testing and feedback to improve the system.
Read at ZDNET
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