Following the launch of iOS 15.6 last Wednesday, Apple has stopped signing iOS 15.5, the previously available version that came out in mid-May. Since iOS 15.5 is no longer being signed, it is not possible to downgrade to that version of iOS after installing iOS 15.6.


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, so it is not unusual that iOS 15.5 is no longer being signed.

iOS 15.5 was a relatively small-scale update, with improvements to Apple Cash in the Wallet app and a new setting that lets Podcasts users limit the number of episodes stored on their devices.

Released on July 20, iOS 15.6 was a similarly minor update and introduced a handful of features including an option to restart, pause, rewind, and fast-forward a live sports game that’s in progress. It also addressed some small bugs, including an issue that could cause the Settings app to continue to display that device storage is full even when it’s not.

Related Stories

Apple Stops Signing iOS 15.4.1 Following iOS 15.5 Release, Downgrading No Longer Possible

Following the May 16 launch of iOS 15.5, Apple has stopped signing iOS 15.4.1, the previously available version of iOS that came out in late March. Because iOS 15.4.1 is no longer being signed, it is not possible to downgrade to that version of iOS after installing iOS 15.5. Apple routinely stops signing older versions of software updates after new releases come out in order to encourage…

Apple Stops Signing iOS 15.3.1 Following iOS 15.4 Release, Downgrading No Longer Possible

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…

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

Following the March 31 release of iOS 15.4.1, Apple has stopped signing iOS 15.4, the previously available version of iOS that came out earlier in March. As iOS 15.4 is no longer being signed, it is not possible to downgrade to that version of iOS once you’ve installed iOS 15.4.1. Apple routinely stops signing older versions of software updates after new releases come out in order to…

Apple Stops Signing iOS 15.3 Following iOS 15.3.1 Release, Downgrading No Longer Possible

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…

Apple Stops Signing iOS 15.0 Following iOS 15.0.1 Release, Downgrading No Longer Possible

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…

Apple Stops Signing iOS 15.2 Following iOS 15.2.1 Release, Downgrading No Longer Possible

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…

Apple Stops Signing iOS 14.7 Following iOS 14.7.1 Release

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 …

Apple Releases iOS 15.6 With New Live Sports Features, Storage Bug Fix and More

Apple today released iOS 15.6 and iPadOS 15.6, the sixth major updates to the iOS and iPadOS 15 operating systems that were initially released in September 2021. iOS 15.6 and iPadOS 15.6 come around two months after the launch of iOS 15.5 and iPadOS 15.5. The iOS 15.6 and iPadOS 15.6 updates can be downloaded for free and the software is available on all eligible devices over-the-air in the…

Popular Stories

Apple Seeds Second Public Betas of iOS 16 and iPadOS 16

Apple today seeded the second betas of iOS 16 and iPadOS 16 to public beta testers, opening up the iOS 16 beta testing process to the general public. Today’s beta comes a little over two weeks after the first public beta, and it corresponds with the fourth developer beta. Public beta testers who have signed up for Apple’s free beta testing program can download the second iOS 16 and iPadOS 16 …

Everything New in iOS 16 Beta 4 For Lock Screen, iMessage, CarPlay, and More

Apple today seeded the fourth beta of iOS 16 to developers for testing. The latest beta contains a handful of new features and changes involving the Messages app, Home app, Mail app, Lock Screen notifications, CarPlay, and more. Subscribe to MacRumors on YouTube iOS 16 is currently in beta for developers and members of Apple’s free public beta testing program, and the software update will be…

Top Stories: iOS 16 Beta 4, ‘Apple Watch Pro’ Rumors, and More

We’re probably about six weeks away from the unveiling of the iPhone 14 lineup and Apple is continuing to polish the iOS 16 update that will be released alongside the new hardware, so we’re seeing a number of tweaks as it moves through the beta testing period. This week also saw some rumors about the rugged “Apple Watch Pro” planned for launch later this year, as well as some of the…

Five Apple Products Rumored to Switch to USB-C

While the iPhone still uses the Lightning connector for now, Apple has been transitioning many of its devices to USB-C in recent years. Apple now offers USB-C ports on every Mac that it currently sells, ranging from the MacBook Air to the Mac Pro. Other devices with a USB-C port include the 2018 and newer iPad Pro, 2020 and newer iPad Air, sixth-generation iPad mini, Studio Display, and Pro…

Apple Erroneously Sending iTunes Connect Email to Users

Apple is erroneously sending emails to users asking them to update their iTunes Connect banking information, but the users receiving the emails often have no content being distributed via the service. Users have flocked to Twitter to share their confusion over the email, which reads, “we’re reaching out because your banking information in iTunes Connect is invalid and needs to be corrected…

Apple Reports 3Q 2022 Results: $19.4B Profit on $83B Revenue

Apple today announced financial results for its third fiscal quarter of 2022, which corresponds to the second calendar quarter of the year. For the quarter, Apple posted revenue of $83 billion and net quarterly profit of $19.4 billion, or $1.20 per diluted share, compared to revenue of $81.4 billion and net quarterly profit of $21.7 billion, or $1.30 per diluted share, in the year-ago quarter …

Apple Allegedly Prototyped a Redesigned 27-Inch iMac With M1 Max Chip and Black Finish Last Year

Apple prototyped at least three larger iMac models with Apple silicon chips last year, according to information shared by MacRumors forum member Amethyst back in March. The forum member said they obtained the details from an acquaintance. We’ve elected to share this iMac information given that Amethyst accurately revealed details about the Mac Studio before anyone else, including the name of …