Apple Stops Signing iOS 17.6, Downgrading No Longer an Option

Apple today stopped signing iOS 17.6, preventing iPhone users from downgrading to that version of iOS. The update is no longer being signed after Apple released iOS 17.6.1 on August 7.

iOS 17
Apple regularly stops signing older version of iOS, typically within a week or two after a new version is released. When Apple stops signing an update, it can no longer be installed on an ‌iPhone‌ due to a server-side software verification check, so those who have updated to the latest version of iOS cannot downgrade.

Preventing downgrading encourages users to keep their operating systems up to date with the latest security fixes.

iOS 17.6 focused on introducing security fixes, while iOS 17.6.1 added a fix for a bug that could prevent the enabling or disabling of Advanced Data Protection.

iOS 17.5.1 addressed a corruption bug that could cause deleted photos to reappear on an iPhone. There were no notable features in the iOS 17.6 update, with Apple adding unspecified bug fixes and security updates.

Popular Stories

iphone 17 models

No iPhone 18 Launch This Year, Reports Suggest

Thursday January 1, 2026 8:43 am PST by
Apple is not expected to release a standard iPhone 18 model this year, according to a growing number of reports that suggest the company is planning a significant change to its long-standing annual iPhone launch cycle. Despite the immense success of the iPhone 17 in 2025, the iPhone 18 is not expected to arrive until the spring of 2027, leaving the iPhone 17 in the lineup as the latest...
duolingo ad live activity

Duolingo Used iPhone's Dynamic Island to Display Ads, Violating Apple Design Guidelines

Friday January 2, 2026 1:36 pm PST by
Language learning app Duolingo has apparently been using the iPhone's Live Activity feature to display ads on the Lock Screen and the Dynamic Island, which violates Apple's design guidelines. According to multiple reports on Reddit, the Duolingo app has been displaying an ad for a "Super offer," which is Duolingo's paid subscription option. Apple's guidelines for Live Activity state that...
Clicks Communicator Feature

'Clicks Communicator' Unveiled — Will You Carry This With Your iPhone?

Friday January 2, 2026 6:35 am PST by
The company behind the BlackBerry-like Clicks Keyboard accessory for the iPhone today unveiled a new Android 16 smartphone called the Clicks Communicator. The purpose-built device is designed to be used as a second phone alongside your iPhone, with the intended focus being communication over content consumption. It runs a custom Android launcher that offers a curated selection of messaging...
apple intelligence black

Report: Apple's AI Strategy Could Finally Pay Off in 2026

Tuesday December 30, 2025 9:01 am PST by
Apple's restrained artificial intelligence strategy may pay off in 2026 amid the arrival of a revamped Siri and concerns around the AI market "bubble" bursting, The Information argues. The speculative report notes that Apple has taken a restrained approach with AI innovations compared with peers such as OpenAI, Google, and Meta, which are investing hundreds of billions of dollars in data...
apple fitness 2026 1

Apple Teases 'Something Big' Coming Soon to Apple Fitness+

Tuesday December 30, 2025 2:11 pm PST by
The Apple Fitness+ Instagram account today teased that the service has "big plans" for 2026. In a video, several Apple Fitness+ trainers are shown holding up newspapers with headlines related to Apple Fitness+. What's Apple Fitness+ Planning for the New Year? Something Big is Coming to Apple Fitness+ The Countdown Begins. Apple Fitness+ 2026 is Almost Here 2026 Plans Still Under ...
Low Cost MacBook Feature A18 Pro

Low-Price 12.9-Inch MacBook With A18 Pro Chip Reportedly Launching Early This Year

Friday January 2, 2026 9:08 am PST by
Apple plans to introduce a 12.9-inch MacBook in spring 2026, according to TrendForce. In a press release this week, the Taiwanese research firm said this MacBook will be aimed at the entry-level to mid-range market, with "competitive pricing." TrendForce did not share any further details about this MacBook, but the information that it shared lines up with several rumors about a more...
Mac Pro Feature Blue

What's Happening With the Mac Pro?

Wednesday December 31, 2025 9:59 am PST by
Apple hasn't updated the Mac Pro since 2023, and according to recent rumors, there's no update coming in the near future. In fact, Apple might be finished with the Mac Pro. Bloomberg recently said that the Mac Pro is "on the back burner" and has been "largely written off" by Apple. Apple apparently views the more compact Mac Studio as the ideal high-end pro-level desktop, and it has almost...
Apple Fitness Plus hero

Apple Announces New Fitness+ Workout Programs, Strava Challenge, and More

Friday January 2, 2026 6:43 am PST by
Apple today announced a number of updates to Apple Fitness+ and activity with the Apple Watch. The key announcements include: New Year limited-edition award: Users can win the award by closing all three Activity Rings for seven days in a row in January. "Quit Quitting" Strava challenge: Available in Strava throughout January, users who log 12 workouts anytime in the month will win an ...

Top Rated Comments

Populus Avatar
18 months ago

17.6.1 hurt battery life badly!!
At this point I don’t really know if you’re serious or sarcastic/joking. I think it’s the latter.
Score: 2 Votes (Like | Disagree)
thadoggfather Avatar
18 months ago
yesss!! dont allow users the freedom to choose especially those that have bugs specific to 17.6.1

woo hoo
Score: 1 Votes (Like | Disagree)
Populus Avatar
18 months ago

They should release a 17.7 with bug fixes if this is to be the last version of iOS many devices get.
I doubt so. If I recall correctly, all the devices running iOS 17 will get the iOS 18 update.
Score: 1 Votes (Like | Disagree)
MrRom92 Avatar
18 months ago

I doubt so. If I recall correctly, all the devices running iOS 17 will get the iOS 18 update.
Not the case for my iPad
Score: 1 Votes (Like | Disagree)
MrRom92 Avatar
18 months ago
They should release a 17.7 with bug fixes if this is to be the last version of iOS many devices get.
Score: 1 Votes (Like | Disagree)