Apple Stops Signing iOS 16.3 Following iOS 16.3.1 Launch, Downgrading No Longer Possible
Following the launch of iOS 16.3.1 on February 13, Apple is no longer signing iOS 16.3, the previously available version of iOS. Now that Apple has stopped signing iOS 16.3, it is no longer possible to downgrade to that version of iOS after installing the iOS 16.3.1 update.
Apple routinely stops signing older versions of iOS after new releases come out in order to encourage customers to keep their operating systems up to date, so it is not unusual that the iOS 16.3 update is no longer being signed.
iOS 16.3 was a relatively minor update that introduced support for physical security keys for Apple IDs, expanded Advanced Data Protection globally, added support for the second-generation HomePod, and more.
While iOS 16.3.1 remains the current public version of iOS, Apple released the first beta of iOS 16.4 last week with support for new emoji characters, web push notifications, and more.
(Thanks, Aaron!)
Popular Stories
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we sometimes get rumored feature leaks so far ahead of launch. The iPhone 17 series is no different – already we have some idea of what to expect from Apple's 2025 smartphone lineup. If you plan to skip...
Following its iPhone 16 event on Monday, Apple shared a PDF on its website with a list of all new features and changes coming with iOS 18. The list includes many features that were already announced, including Apple Intelligence, new customization options for the Home Screen and Control Center, a redesigned Photos app, several enhancements to the Messages app, a Passwords app, and more....
Will you be skipping the iPhone 16 Pro and waiting another year to upgrade? If so, we already have some iPhone 17 Pro rumors for you. Below, we recap key new features rumored for the iPhone 17 Pro models so far: 24MP front camera for all iPhone 17 models: All four iPhone 17 models will feature an upgraded 24-megapixel front-facing camera, according to Apple supply chain analysts Ming-Chi...
Pre-orders for the iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max are set to begin on Friday, September 13 at 5:00 a.m. Pacific Time, with the new devices set to become available in multiple countries around the world simultaneously. We've compiled pre-order times for various countries to help MacRumors readers be among the first to order. This list isn't...
Apple began accepting pre-orders for all four new iPhone 16 models today, and shipping estimates for the iPhone 16 Pro and Pro Max on Apple's online store in the U.S. are already beginning to slip into October for many configurations. As of 6:45 a.m. Pacific Time, the iPhone 16 Pro and Pro Max were facing a 2-4 week shipping delay for some configurations on Apple's online store, with...
iOS 18 will be released to the public on Monday, but the first Apple Intelligence features will not be available until iOS 18.1 is released in October. Apple Intelligence features will continue to roll out in iOS 18.2 and beyond, with the expected roadmap outlined below per Apple's website and rumors. Apple Intelligence requires an iPhone 15 Pro model or any iPhone 16 model, and it will...
