Apple revives iOS 12 with critical update to keep iMessage and FaceTime alive on older devices

Apple iPhone

• Apple releases iOS 12.5.8 for older iPhones, iPads, and iPod touch
• Update extends system certificate, ensuring iMessage and FaceTime work until 2027
• Legacy device users urged to install updates to avoid service disruptions

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Apple has quietly pushed out a rare system update for devices that many assumed were long past their software support window. The company has released iOS 12.5.8 and iPadOS 12.5.8, targeting a small group of older iPhones, iPads, and the sixth generation iPod touch. While this update does not introduce new features, it plays a critical role in keeping essential services functional on ageing hardware.

The update arrives more than three years after the previous iOS 12 release, which rolled out in January 2023. Its timing is notable, as it lands alongside a fresh wave of beta releases for Apple’s current operating systems. Despite the focus usually being on the latest versions of iOS and iPadOS, this release shows that Apple is still paying attention to devices that cannot move beyond iOS 12.

According to Apple’s release notes, iOS 12.5.8 includes an extension for an important system certificate that is required for services such as iMessage, FaceTime, and device activation. Without this update, those services would stop functioning once the existing certificate expires in January 2027. By pushing this update now, Apple is ensuring that these core features will continue to work for several more years on supported legacy devices.

The update is available for the iPhone 5s, iPhone 6, and iPhone 6 Plus, as well as the iPad Air, iPad mini 2, and iPad mini 3. The sixth generation iPod touch is also included. These devices are no longer capable of running modern versions of iOS, making this update especially important for users who still rely on them as secondary phones, media players, or communication devices.

For users still using these products, installing iOS 12.5.8 is strongly recommended. Without it, services like iMessage and FaceTime could stop working entirely once the certificate expires. Device activation could also be affected, which would be a serious problem for anyone attempting to reset or set up one of these devices in the future.

While January 2027 may seem far away, updating sooner rather than later makes sense. Legacy devices rarely receive software updates, and when they do, they are usually addressing specific and critical issues. Installing the update now also helps reduce the risk of running into unexpected bugs or compatibility problems that may have gone unnoticed since the last system update more than three years ago.

Apple’s decision to release iOS 12.5.8 highlights the company’s long tail of software responsibility. Even as it continues to move forward with new hardware and increasingly advanced versions of iOS, it is still taking steps to prevent older devices from suddenly losing basic functionality. For users holding on to an older iPhone or iPad, this update may be small, but it is essential.

In short, if you or someone in your family still uses one of these older Apple devices, this update should not be ignored. It ensures that messaging, video calling, and device activation remain reliable well into the future, even on hardware that has not seen a major iOS upgrade in years.