Apple Stops Signing iOS 13.6 Following Release of iOS 13.6.1

Following the release of iOS 13.6.1 on August 12, Apple has stopped signing iOS 13.6, which means downgrading to that version of iOS is no longer possible.

iOS 13
iOS 13.6 was a major update that introduced Car Keys support Apple News audio, and other features.

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 13.6.1, a bug fix issue that addressed problems with data storage, thermal management, and exposure notifications, is the only current publicly available version of iOS that can be installed on iPhones and iPads. Apple has also seeded betas of upcoming iOS and iPadOS 14 updates to developers and public beta testers, which can be downloaded instead.

Popular Stories

iphone 16 display

iPhone 17's Scratch Resistant Anti-Reflective Display Coating Canceled

Monday April 28, 2025 12:48 pm PDT by
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors. Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
apple watch ultra yellow

What's Next for the Apple Watch Ultra 3 and Apple Watch SE 3

Friday April 25, 2025 2:44 pm PDT by
This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too. 2025 Apple Watch Ultra 3 Apple didn't update the...
iPhone 17 Air Pastel Feature

iPhone 17 Reaches Key Milestone Ahead of Mass Production

Monday April 28, 2025 8:44 am PDT by
Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report. iPhone 17 Air mockup based on rumored design The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...
Beyond iPhone 13 Better Blue

20th Anniversary iPhone Likely to Be Made in China Due to 'Extraordinarily Complex' Design

Monday April 28, 2025 4:29 am PDT by
Apple will likely manufacture its 20th anniversary iPhone models in China, despite broader efforts to shift production to India, according to Bloomberg's Mark Gurman. In 2027, Apple is planning a "major shake-up" for the iPhone lineup to mark two decades since the original model launched. Gurman's previous reporting indicates the company will introduce a foldable iPhone alongside a "bold"...
iPhone 17 Air Pastel Feature

iPhone 17 Air Launching Later This Year With These 16 New Features

Thursday April 24, 2025 8:24 am PDT by
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the ultra-thin device. Overall, the iPhone 17 Air sounds like a mixed bag. While the device is expected to have an impressively thin and light design, rumors indicate it will have some compromises compared to iPhone 17 Pro models, including only a single rear camera, a...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
iphone 17 air iphone 16 pro

iPhone 17 Air USB-C Port May Have This Unusual Design Quirk

Wednesday April 30, 2025 3:59 am PDT by
Apple is preparing to launch a dramatically thinner iPhone this September, and if recent leaks are anything to go by, the so-called iPhone 17 Air could boast one of the most radical design shifts in recent years. iPhone 17 Air dummy model alongside iPhone 16 Pro (credit: AppleTrack) At just 5.5mm thick (excluding a slightly raised camera bump), the 6.6-inch iPhone 17 Air is expected to become ...

Top Rated Comments

Chester Stone Avatar
61 months ago

I love the iPhone and IOS but wish Apple would allow us to install older versions of IOS. I had a specific incident years ago on an old iPhone. I upgrade IOS then several months later learned some of my devices would no longer connect via Bluetooth (one of those was my car). So there are some legitimate reasons to be able to install an older version of IOS (jail breaking is not a viable solution for me).
Totally agree. And I've written this in Apple user surveys, forums, and written their Twitter support about it. There are unintentional regressions all the time, bugs that didn't exist in older versions of iOS, that just get haphazardly released. Rolling back iOS version should be a fallback plan for those kinds of gamebreaking bugs.

Power management is a common area noted in the news, but I've also had an iPad Pro that just kept draining battery even when turned off via power switch shutdown, so that when a fully charged 100% device got turned back on, it'd be at 70% after a day, 40% after two, then 0%, without so much as a single charge. Not plugged into power, not touched or used. It was fine in iOS 13.4, then bad in iOS 13.5. Then later versions not playing from car speakers when connected to CarPlay on certain vehicles, requiring multiple unplugs and replugs. So many little bugs here and there that compromise the user experience, that pop up in one version of iOS, not present before. All together, the experience doesn't feel like "it just works."

So often, this kind of problem happens because the OS is so deep, and little feature adds and changes in the code can cause unintentional problems elsewhere. If it's a non-automated-testbed problem that doesn't cross the Apple QA folk's workflow or other employees' use case -- for example, employees never turning off their devices -- then it just gets released unnoticed.

Human error is understandable, but with no fallback to a previous iOS, it just hurts users that live outside the "typical" user/QA workflow.

(To make matters worse, Apple constantly tells developers to support two versions back when building & submitting an app to the App Store. It's so hypocritical when they won't even support two versions of iOS at the same time, pulling the plug so quickly on signing a previous version. It's just such an extreme reaction to security compromises and this whole "get on the latest" mindset.)
Score: 7 Votes (Like | Disagree)
calzon65 Avatar
61 months ago
I love the iPhone and IOS but wish Apple would allow us to install older versions of IOS. I had a specific incident years ago on an old iPhone. I upgrade IOS then several months later learned some of my devices would no longer connect via Bluetooth (one of those was my car). So there are some legitimate reasons to be able to install an older version of IOS (jail breaking is not a viable solution for me).
Score: 4 Votes (Like | Disagree)
jooish Avatar
61 months ago

You don't own your device; Apple does.
They decide what version of os you can run and when you can run it.
They decide when your device goes obsolete.
Samsung and others are no better.
You own the device... You just don't own the software.
Score: 2 Votes (Like | Disagree)
BaltimoreMediaBlog Avatar
61 months ago
UNSIGNING IOS versions should be illegal, restraint of trade! I buy a car and I cannot put a different radio in it?
This is the ONE single thing that Apple should have been sued over but not so far. It cost me over 25 games that worked and then didn't because Apple forced me to upgrade.
Score: 2 Votes (Like | Disagree)
Ipadlover29 Avatar
61 months ago

What forced you to go back at 13.6?
Battery life. Was getting an hour less with 13.6.1. on iPhone 11 Pro and iPad Pro 4.
Score: 1 Votes (Like | Disagree)
Shirasaki Avatar
61 months ago
By maintaining only latest software, Apple can save a lot of money by not maintaining older versions and fixing legacy bugs. In turn, customers will suffer. I am lucky enough to not have too many game-breaking issues during updating, but who knows what’s going to happen next.
At the end of the day though, I doubt anything will change and Apple will keep their harsh stance against any user attempting to use older version software by scaring them off or forcing the upgrade when applicable.
Score: 1 Votes (Like | Disagree)