iOS 26.4 No Longer Signed by Apple, Blocking Downgrades From iOS 26.4.1
Apple today stopped signing iOS 26.4, so iPhone users who have updated to iOS 26.4.1 are no longer able to downgrade to the earlier version of iOS. iOS 26.4.1 came out a week ago.
When software is "signed," it means it can pass the server-side verification check that Apple does when a user downloads a new version of iOS on an iPhone. An update that's not signed can't be installed because it won't pass the verification check.
Apple does not show users earlier versions of iOS after an upgrade has been released, but when software is still signed, it is possible to downgrade with the macOS Finder app on a Mac or the Apple Devices app on a Windows PC.
Unsigning software prevents Apple customers from installing outdated, less secure versions of iOS, and Apple typically stops signing an update a week or so after new software comes out.
iOS 26.4.1 fixed iCloud syncing issues and Stolen Device Protection on enterprise devices. While iOS 26.4.1 is the current publicly available version of iOS, Apple is also beta testing an iOS 26.5 update.
Popular Stories
iOS 26.5 is expected to be released next week, following more than a month of beta testing. The update is relatively minor, but there are a couple of new features and changes across the operating system that we have recapped below.
iOS 26.5 lays the groundwork for end-to-end encryption for RCS in the Messages app and ads in the Apple Maps app, and it will include a new Pride wallpaper and a...
Apple today seeded the release candidate versions of upcoming iOS 26.5 and iPadOS 26.5 updates to developers for testing purposes, with the software coming a week after Apple released the fourth betas.
Registered developers can download the betas from the Settings app on the iPhone or iPad by going to the General section and selecting Software Update.
iOS 26.5 and iPadOS 26.5 do not...
End-to-end encryption (E2EE) for RCS messages between iPhone and Android devices is coming in iOS 26.5, Apple confirmed today. The feature is listed in Apple's iOS 26.5 release notes.
Apple says end-to-end encrypted RCS messaging remains in beta even though it is being released in iOS 26.5. The feature is available with supported carriers and will roll out over time, and for conversations to ...
