Apple Stops Signing iOS 17.2, Downgrading No Longer Possible
Apple last night stopped signing the iOS 17.2 update, preventing iPhone users from downgrading to that version of iOS going forward. iOS 17.2 is no longer being signed following the December 19 release of iOS 17.2.1, an update that brought bug fixes.
It is not unusual that iOS 17.2 is 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 iPhone operating system.
The iOS 17.2 update brought the Journal app, spatial video recording on the iPhone 15 Pro models, updates to Messages and Apple Music, and more. Apple did not ever provide details on the bug fixes included in iOS 17.2.1.
Apple is already testing iOS 17.3, an update that is expected to come out later in January.
Popular Stories
Apple is expected to announce iOS 18 during its WWDC keynote on June 10, and new features have already been rumored for many apps, including Apple Music, Apple Maps, Calculator, Messages, Notes, Safari, and others. Below, we recap iOS 18 rumors on a per-app basis, based on reports from MacRumors, Bloomberg's Mark Gurman, and others: Apple Maps: At least two new Apple Maps features are...
Apple is holding at least five announcements for later in the year that will not arrive at the company's "Let loose" special event next week, according to Bloomberg's Mark Gurman. In a report detailing his expectations for Apple's upcoming event, Gurman noted that there are a total of five things that the company is holding for later in the year: AI features: While Apple may tease new...
It's been a long time since the last one, but an Apple event is finally right around the corner! While it's anticipated to be a fairly short pre-recorded affair, we're expecting to see the first updates to the iPad lineup in over a year and half, so make sure to tune in to see what Apple has in store. Other news and rumors this week included a couple of product introductions from Apple's...
Top Rated Comments
Like Windows does. Just stating facts.
The details are complicated but the idea is simple. Basically iOS asks Apple every time an update is to be installed whether the update’s signature is valid. A signature is part of public key cryptography, a way to verify that the code you have is the same code the vendor sent you.
When Apple stops signing a version, it means that when iOS asks, Apple says no. So iOS does not allow the update to be installed.