Apple Stops Signing iOS 18.0
Apple today stopped signing iOS 18.0, preventing iPhone users who have upgraded to iOS 18.0.1 from downgrading to iOS 18. Apple released iOS 18.0.1 a week ago on October 3.
It is not unusual for Apple to stop signing older versions of iOS within a week or two after a new version of iOS is released. When Apple stops signing an update, it can no longer be installed on an iPhone due to a server-side software verification check that happens before new software is installed, so those who have upgraded to the latest version of iOS 18 cannot downgrade to iOS 18.0.
Apple prevents downgrading to older versions of iOS to encourage iPhone users to keep their operating systems up to date with the latest security fixes. iPhone 16 users who have upgraded to iOS 18.0.1 can no longer install any older software, but iPhone 15 and earlier users have the option of downgrading to iOS 17.7, which is also still signed.
The iOS 18.0.1 update addressed bugs with the touch screen, Camera, and Messages app, plus it fixed two vulnerabilities.
Popular Stories
Apple has added a new "iPhone Handoff" feature to iOS 27 that will allow you to switch between two iPhones while using the same phone number on each device.
This functionality was briefly mentioned during the WWDC 2026 keynote in June, on a slide that listed hundreds of new features coming in iOS 27 and corresponding software updates, but Apple never shared any further details at the time.
...
Bloomberg's Mark Gurman today further outlined what to expect from the Apple Watch Series 12 and Apple Watch Ultra 4 set to be unveiled on September 9.
While it was initially rumored that Touch ID may be coming to the Apple Watch this year, Gurman reiterated that he does not expect the Series 12 or Ultra 4 to have any major design changes compared to the current Series 11 and Ultra 3 models.
...
Apple's former hardware engineering chief John Ternus became its CEO on Tuesday, and the company made a controversial decision on his very first day in charge.
As of Tuesday, Apple Maps users in the U.S. see the name "Lake America" instead of Lake Ontario for the Great Lake that straddles the New York—Ontario border.
Apple made this change after the U.S. Geographic Names Information...
