In summary:
- Apple released iOS 12.5.8, its first update to the older operating system since 2023, extending certificate validity for iMessage and FaceTime until 2027.
- Macworld reports that Apple also updated multiple iOS versions including 18.7.4, 16.7.13, and 15.8.6, alongside releasing a second-generation AirTag with improved features.
- These updates benefit users with older devices like iPhone 5S and 6, demonstrating Apple’s continued support for legacy hardware with essential security fixes.
Monday was a good day for fans of small Apple updates. Early in the morning, we got the 2nd-generation AirTag, which is visually identical to the original model but adds a larger speaker and better tracking. Then it delivered iOS 26.2.1, iPadOS 26.2.1, and watchOS 26.2.1 to support the new accessory. Finally, Apple also announced the 2026 Black History Month Apple Watch band.
But even if you don’t have an iOS 26 iPhone and have no intention of buying a new AirTag, Apple has something for you, too. Alongside the 26 releases, Apple has also updated several of its older iOS operating systems, some for the first time in years. They include: iOS/iPadOS 18.7.4, iOS/iPadOS 16.7.13, iOS/iPadOS 15.8.6, and iOS/iPadOS 12.5.8. (Of note, iPad OS wasn’t split apart from iOS until version 13, though Apple’s iOS 12.5.8 security page still references iPad OS.)
The update appears to be related to a specific issue. According to Apple’s “About iOS 12 Updates” page, iOS 12.5.78 “extends the certificate required by features such as iMessage, FaceTime, and device activation to continue working after January 2027.” Meanwhile, the iOS 16 update says it “provides important bug fixes and is recommended for all users.”
When iOS 13 arrived, it dropped compatibility for the iPhone 5S, iPhone 6, and iPhone 6 Plus, as well as the 2013 iPad Air and iPad Mini 3, so users of those older phones should specifically take note.
To update to the latest version, head over to the Settings app, then General and Software Update, and follow the instructions.
Author: Michael Simon, Executive Editor, Macworld
Michael Simon has been covering Apple for more than 20 years. He started covering rumors with Spymac when the iPod was the iWalk, and has owned nearly every iPhone Apple has ever made. He lives in Connecticut with his wife, son, and far too many gadgets.