Apple patches ancient iOS versions to keep iMessage, FaceTime, other services working

When Apple stops supporting older iPhones and iPads with the latest version of iOS or iPadOS, it usually isn’t the end of the line—Apple keeps releasing new security-only patches for those devices for another year or two, keeping them usable while their hardware is still reasonably capable.

Once those updates dry up, it’s rare for Apple to revisit those older operating systems, but the company does sometimes make exceptions. That was the case yesterday, when the company released a batch of updates for long-retired iOS and iPadOS versions that otherwise hadn’t seen a new patch in months or years. Those updates include iOS 12.5.8, available for devices as old as 2013’s iPhone 5S and 2014’s iPhone 6; iOS 15.8.6, available for devices like the iPhone 6S, iPhone 7, and iPad Air 2; and iOS 16.7.13, available for devices like the iPhone 8 and iPhone X.

Both iOS 15 and iOS 16 were last patched in mid-2025, but iOS 12’s last patch was released in January of 2023.

These updates don’t patch security flaws or add new features. According to Apple’s release notes for the iOS 12 and iOS 15 updates, all they do is update a security certificate to ensure that iMessage, FaceTime, and Apple account sign-in will continue working past January 2027, when the operating systems’ original certificate would have expired.