Apple Stops Signing iOS 17.1.1 and iOS 17.1.2, Preventing Downgrading
Apple today stopped signing iOS 17.1.1 and iOS 17.1.2, preventing iPhone users from downgrading to those versions of iOS. Apple is no longer signing the updates following the release of iOS iOS 17.2 on December 11 and the launch of iOS 17.2.1 today.

It is not unusual that iOS 17.1.1 and iOS 17.1.2 are no longer being signed. Apple routinely stops signing older versions of iOS after new releases in order to encourage customers to keep their operating systems up to date and to prevent users from downgrading to older, less secure versions of the software.
iOS 17.2.1 is the current version of iOS 17 that is available to the public. It introduced unspecified bug fixes, but the iOS 17.2 update that preceded it brought the Journal app, spatial video recording on the iPhone 15 Pro models, updates to Messages and Apple Music, and more.
Apple is also testing iOS 17.3, an update that is expected to come out in January.
Popular Stories
Apple today announced the "iPhone Duo," a new kind of iPhone featuring two screens and a foldable inner display.
The two halves of the iPhone Duo connect into a single continuous frame with the same aspect ratio across both displays, and Apple said the transition between open and closed is designed to feel fluid. When fully open, Apple says it is the thinnest iPhone ever made, with an...
Apple's "Surprise and Shine" event kicks off today at 10:00 a.m. Pacific Time, where we're expecting to see the foldable iPhone Duo, the iPhone 18 Pro and Pro Max, Apple Watch Series 12 and Ultra 4 models, new AirPods 5 earphones, and perhaps some other announcements.
Apple is providing a live video stream on its website, on YouTube, and in the company's TV app across various platforms. We...
At its event today unveiling the iPhone 18 Pro, AirPods 5, Apple Watch Series 12, and more, Apple announced that iOS 27 will be released later this month.
iOS 27 has already been available as a developer beta since June and as a public beta since July, and Apple today said that the update will be released for all users with a compatible iPhone model on Monday, September 14.
iOS 27 is...