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
67 months ago
...
Except that most are just fine updating.
Score: 3 Votes (Like | Disagree)
- rob - Avatar
67 months ago
This is good for the security of all iOS users.
Score: 2 Votes (Like | Disagree)
Junipr Avatar
67 months ago
However, Apple is still signing their LEGO blocks with iPod Classic
Score: 2 Votes (Like | Disagree)
I7guy Avatar
67 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
67 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
67 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

Generic iOS 18 Feature Real Mock

iOS 18 Available Now With These 8 New Features For Your iPhone

Sunday September 15, 2024 10:09 am PDT by
Following over three months of beta testing, iOS 18 was finally widely released to the public on Monday, September 16. The update is available in the Settings app under General → Software Update on the iPhone XS and newer. Below, we have highlighted eight key new features included in iOS 18, and Apple shared a complete list of new features and changes last week. Note that Apple...
iOS 18 Public Beta Thumb 1

Here's When iOS 18 Rolls Out Today in Every Time Zone

Monday September 16, 2024 3:56 am PDT by
It's that time of year again. Apple is about to release iOS 18, which promises to bring a range of new features and improvements to iPhones worldwide. It's Apple's biggest software update of the year, and the company is expected to release it sometime today – Monday, September 16. Based on past releases, the update is likely to drop at around 10:00 a.m. Pacific Time/1:00 p.m. Eastern...
Beyond iPhone 13 Better Blue Face ID Single Camera Hole

10 Reasons to Wait for Next Year's iPhone 17

Friday September 13, 2024 2:40 am PDT by
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...
apple silicon mac lineup wwdc 2022 feature purple

M4 Macs, New iPad Mini, and iPad 11 Expected at Upcoming Apple Event

Sunday September 15, 2024 5:29 am PDT by
Apple will likely hold another event in October this year to announce new Macs and iPads. If so, it would be the fourth time in the last five years that Apple has held an event in October. Last year, Apple held a virtual event on Monday, October 30 to announce new MacBook Pro and iMac models with the M3 series of chips. In his Power On newsletter today, Bloomberg's Mark Gurman reiterated...
16 pro

iPhone 16 Pro Demand Has Been Lower Than Expected, Analyst Says

Sunday September 15, 2024 3:58 pm PDT by
Apple analyst Ming-Chi Kuo today said demand for the iPhone 16 Pro and iPhone 16 Pro Max has been "lower than expected" since the devices became available to pre-order in the U.S. and dozens of other countries on Friday. Kuo said his data is based on a "supply chain survey" and shipping estimates listed on Apple's online store. Kuo estimated that sales of all four iPhone 16 models reached...
iphone 16 pro apple intelligence

Apple Intelligence Features Expected to Roll Out in This Order Between iOS 18.1 and iOS 18.4

Friday September 13, 2024 1:01 pm PDT by
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...