Apple Stops Signing iOS 15.4 Following iOS 15.4.1 Release, Downgrading No Longer Possible

After the release of the new version of the software on March 31, Apple stopped signing the previously available version of the software. It is not possible to upgrade to the newer version of the software once you have installed it.

It is not unusual for Apple to stop signing older versions of software after a new release, so that customers can keep their operating systems up to date.

Universal Control on the iPad, support for unlocking an iPhone while wearing a mask, and new emoji characters were some of the new features in the major update.

The AppleAVD issue that could allow an application to execute arbitrary code was addressed in the latest version of the operating system. If you haven't done so already, it's a good idea to update to iOS 15.4.1 because Apple said this exploit may have been actively exploited.

tvOS and HomePod have been stopped by Apple.

Tuesday March 22, 2022 5:12 pm PDT by Juli Clover

Following the release of iOS 15.4 on March 14, Apple has stopped signing iOS 15.3.1, the previously available version of iOS that came out in February. As iOS 15.3.1 is no longer being signed, it is not possible to downgrade to that version of iOS if you've updated to iOS 15.4. Apple routinely stops signing older versions of software updates after new releases come out in order to encourage...

Thursday February 17, 2022 11:50 am PST by Juli Clover

Following the release of iOS 15.3.1 on February 10, Apple has stopped signing iOS 15.3, the previously available version of iOS that came out in late January. Because iOS 15.3 is no longer being signed, it is not possible to downgrade to that version of iOS if you've updated to iOS 15.3.1. Apple routinely stops signing older versions of software updates after new releases come out in order...

Friday October 8, 2021 12:45 pm PDT by Juli Clover

Following the release of iOS 15.0.1 on October 1, Apple has stopped signing iOS 15.0, the previously available version of iOS that saw a public release on September 20. With iOS 15.0 no longer being signed, it is not possible to downgrade to that version if you've already updated to iOS 15.0.1. Apple last week stopped signing iOS 14.8 as well, which means iOS 15.0.1 is the only publicly...

Thursday January 20, 2022 12:56 am PST by Tim Hardwick

Following the release of iOS 15.2.1 earlier in January, Apple has stopped signing iOS 15.2, the previously available version of iOS that saw a public release on December 13. With iOS 15.2 no longer being signed, it is not possible to downgrade to that version if you've already updated to iOS 15.2.1. Apple routinely stops signing older versions of software updates after new releases come out...

Monday May 10, 2021 12:36 pm PDT by Juli Clover

Following the release of iOS 14.5.1 last week, Apple has stopped signing iOS 14.5, the previously available version of iOS 14 that was released in late April. With iOS 14.5 no longer being signed, it is not possible to downgrade to iOS 14.5 if you've already installed iOS 14.5.1. Apple routinely stops signing older versions of software updates after new releases come out in order to...

Monday August 2, 2021 6:42 pm PDT by Juli Clover

Following the release of iOS 14.7.1 last week, Apple has stopped signing iOS 14.7, the previously available version of iOS that was released earlier in July. With iOS 14.7 no longer being signed, it is not possible to downgrade to iOS 14.7 if you've already installed iOS 14.7.1. Apple routinely stops signing older versions of software updates after new releases come out in order to encourage ...

Monday July 26, 2021 3:00 pm PDT by Juli Clover

Following the release of iOS 14.7 last week, Apple has stopped signing iOS 14.6, the previously available version of iOS that was released in May. With iOS 14.6 no longer being signed, it is not possible to downgrade to iOS 14.6 if you've already installed iOS 14.7 or iOS 14.7.1. Apple routinely stops signing older versions of software updates after new releases come out in order to...

Monday May 3, 2021 1:25 pm PDT by Eric Slivka

Following today's release of iOS 14.5.1 and last week's release of iOS 14.5, Apple has stopped signing iOS 14.4.2, the previously available version of iOS 14 released on March 26. With iOS 14.4.2 no longer being signed, it is not possible to downgrade to iOS 14.4.2 from iOS 14.5 or iOS 14.5.1 if you've already updated your iPhone or iPad. Apple routinely stops signing older versions of...

Tuesday April 5, 2022 11:49 am PDT by Juli Clover

Apple today seeded the first betas of iOS 15.5 and iPadOS 15.5 to developers after a three week long wait following the launch of iOS 15.4 and iPadOS 15.4. The new updates aren't as feature rich as the prior updates and focus primarily on under-the-hood changes, but there are still a few minor tweaks, which we've outlined below. Apple Classical References There are references to the...

Tuesday April 5, 2022 4:41 am PDT by Hartley Charlton

The iPhone 14 Pro Max will feature 20 percent smaller bezels around the display, according to newly shared CAD renders. The CAD renders, shared by the Twitter account "ShrimpApplePro," show a design for the iPhone 14 Pro Max that is broadly in line with other illustrations and measurements from 91Mobiles and Max Weinbach. Much like these previous renders, the most noticeable changes include...

Monday April 4, 2022 9:40 am PDT by Joe Rossignol

Five years ago, the Mac lineup was in a bad state. Over three years had passed since Apple redesigned the Mac Pro with a sleek but constrained "trash can" enclosure, while the iMac, MacBook Air, and Mac mini had also gone years without updates. A snapshot of the MacRumors Buyer's Guide from April 4, 2017: At the time, some users began to question whether Apple was still committed to the ...

Monday April 4, 2022 12:36 pm PDT by Juli Clover

In March, Apple came out with an updated version of its cheapest phone, the iPhone SE. We thought we would compare the two to see how they stack up. The A53 5G can offer a better feature set, but it cannot match the quality of the iPhone SE. You can subscribe to the...

Tuesday April 5, 2022 9:02 am PDT by Juli Clover

Apple today announced that its 33rd annual Worldwide Developers Conference is set to take place from Monday, June 6 to Friday, June 10. As with the last several WWDC events, the 2022 Worldwide Developers Conference will be held digitally with no in-person gathering. Prior to 2020, Apple hosted WWDC at the McEnery Convention Center in San Jose, California, and thousands of developers and...

Wednesday April 6, 2022 5:30 am PDT by Mitchel Broussard

Today we're tracking a trio of iPad-related discounts on Amazon, focusing on markdowns on the 2022 iPad Air, 2021 iPad, and 2021 iPad Pro. Many of these sales are offering all-time low prices on Apple's tablets. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. i...

Tuesday April 5, 2022 8:09 am PDT by Joe Rossignol

The second generation of the AirPods Pro will be released in the second half of 2022, according to an analyst. The second- and third-generation AirPods are still available to purchase, but Apple may stop selling the original AirPods Pro when the new ones are released later this year. Apple announced something.

Tuesday April 5, 2022 9:38 am PDT by Juli Clover

Google today updated its dedicated Google Maps app for iOS devices, introducing several new features that will improve the navigation experience on iPhones. There is a more detailed navigation map that Google says is designed to make it easier for people to drive on unfamiliar roads. Google Maps will show traffic lights and stop signs along the route, and enhanced details like building...