Apple released iOS 18.0.1, and as is traditional, it has now stopped signing iOS 18, making downgrading to that version of iOS no longer possible. iOS 17.6.1 is now the only publicly released version of iOS available.
The iOS 18.0.1 software can be downloaded on compatible devices over the air by going to “Settings” -> “General” -> “Software Update.”
The iOS 18.0.1 update included fixes for the following issues:
While falling back to an older iOS version is often used by users who jailbreak their iPhones, it can also be helpful for users who experience significant bugs after upgrading to the latest version of iOS.