Apple has stopped signing iOS 26.1, meaning that iPhone users can no longer downgrade to that software version via Finder on macOS or the Apple Devices app on Windows. iOS 26.2 is now the minimum version that is still signed by Apple, and the first beta of iOS 26.3 is also available to developers and public beta testers. iOS 26.2 was released last week. iOS 26.2 was released last week.