IPSWFollowing the release of iOS 12.4 on July 22, Apple has stopped signing iOS 12.3.1 and iOS 12.3 the previous versions of iOS that were available to consumers. Apple is also no longer signing iOS 12.3.2, an update exclusive to the iPhone 8 Plus.

‌iPhone‌, iPad, and iPod touch owners who have upgraded to iOS 12.4 will no longer be able to downgrade to iOS 12.3, 12.3.1, or 12.3.2.

iOS 12.4, available on all devices able to run iOS 12, was a major update with Apple News+ improvements and a new device-to-device data migration option when setting up a new ‌iPhone‌.

Apple routinely stops signing older versions of software updates after new releases come out in order to encourage customers to keep their operating systems up to date.

iOS 12.4 is now the only version of iOS that can be installed on iPhones and iPads, but developers and public beta testers can download iOS 13, an upcoming update that's currently being beta tested.

Top Rated Comments

C DM Avatar
57 months ago
...
Except that most are just fine updating.
Score: 3 Votes (Like | Disagree)
- rob - Avatar
57 months ago
This is good for the security of all iOS users.
Score: 2 Votes (Like | Disagree)
Junipr Avatar
57 months ago
However, Apple is still signing their LEGO blocks with iPod Classic
Score: 2 Votes (Like | Disagree)
I7guy Avatar
57 months ago
12.4 is a stellar release, IMO, on my max and xr. Works great on my 5s also.
Score: 1 Votes (Like | Disagree)
I7guy Avatar
57 months ago
Shame it didn't fix all six Zero days with iMessage I belive. it had six fixes but one CVE is still listed as vulnerable by Project Zero who are not releasing the information at this time, as it takes no intraction from the user which is scary, so I imagine we will see a 12.4.1 or whatever its called to patch the last vulnerability quite quickly.

https://www.zdnet.com/article/google-researchers-disclose-vulnerabilities-for-interactionless-ios-attacks/

"Details about one of the "interactionless" vulnerabilities have been kept private because Apple's iOS 12.4 patch did not completely resolve the bug, according to Natalie Silvanovich, one of the two Google Project Zero researchers who found and reported the bugs."
Been living with windows zero day vulnerabilities for 10+ years and I consider the surface area of attacks for windows far greater than iOS. Apple will release 12.4.1 that will resolve the last issue.
Score: 1 Votes (Like | Disagree)
killhippie Avatar
57 months ago
12.4 is a stellar release, IMO, on my max and xr. Works great on my 5s also.
Shame it didn't fix all six Zero days with iMessage I belive. it had six fixes but one CVE is still listed as vulnerable by Project Zero who are not releasing the information at this time, as it takes no intraction from the user which is scary, so I imagine we will see a 12.4.1 or whatever its called to patch the last vulnerability quite quickly.

https://www.zdnet.com/article/google-researchers-disclose-vulnerabilities-for-interactionless-ios-attacks/

"Details about one of the "interactionless" vulnerabilities have been kept private because Apple's iOS 12.4 patch did not completely resolve the bug, according to Natalie Silvanovich, one of the two Google Project Zero researchers who found and reported the bugs."
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 17

26 New Things Your iPhone Can Do With Next Month's iOS 17.2 Update

Wednesday November 22, 2023 10:57 pm PST by
Apple made the first beta of iOS 17.2 available to developers in October. Since then we've seen two more betas, and with each iteration Apple continues to add more new features and changes, many of which users have been anticipating for quite a while. Below, we've listed 26 new things that are coming to your iPhone when the finalized version is publicly released in December. 1. Help You...
Apple Watch Series 9

5 Reasons to Wait for Next Year's Apple Watch

Friday November 24, 2023 3:46 am PST by
With all the discounted deals on Apple tech currently available, you might be thinking about upgrading your Apple Watch or buying one for the first time. But if your current smartwatch is doing its job just fine and it's only the idea of a good deal that's piqued your interest, it could be worth holding out until next year when Apple unveils its latest and greatest version. There are already ...
General Black Friday Deals 2022 Green

40+ Apple Black Friday Deals Still Available for AirPods, iPhone, iPad and More

Friday November 24, 2023 5:01 am PST by
Black Friday 2023 has officially ended, but we're still tracking some of the best deals of the year on Apple products like AirPods, iPad, iPhone, MacBook, and many more. 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. Specifically, in this article we're...
Cyber Monday Deals Feature 2022

40+ Apple Cyber Monday Deals for AirPods, iPad, Apple Watch, and More

Sunday November 26, 2023 9:47 am PST by
Cyber Monday has taken the place of Black Friday, and you'll find many of the same deals still around today. This includes dozens of record low prices on Apple products like AirPods, iPad, Apple Watch, MacBook, iPhone, and more. 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...
ipad mini 2021 youtube

What to Expect From the Next iPad Mini Later in 2024

Friday November 24, 2023 1:00 pm PST by
Over 800 days have passed since Apple last updated the iPad mini, as outlined in the MacRumors Buyer's Guide. Fortunately, a new iPad mini is rumored to be released next year, and we have outlined what to expect from the device below. Apple released the current iPad mini in September 2021, with new features at the time including a larger 8.3-inch display, a USB-C port, a Touch ID power...