Apple's recent iOS update has sparked curiosity and concern among iPhone users. The tech giant released iOS 26.2.1 to support the new AirTag 2, but also introduced several other updates for older iPhone models, including iOS 12.5.8 for iPhone 5S and 6 devices. However, a day later, Apple retracted most of these updates, except for iOS 26.2.1, due to an issue preventing older iPhones from connecting to the Australian carrier Telstra's network. This led to a carrier firmware update for older iPhone models, fixing a bug that prevented users from using 4G, making calls, or sending text messages. After resolving the issue, Apple resumed offering the older iOS versions again. But why does Apple continue to update iOS for iPhone 5S and other older devices? Unlike Samsung and other Android manufacturers, Apple doesn't have an official support page specifying the duration of updates. However, a document sent to UK authorities in 2024 revealed that Apple would offer security updates for a minimum of five years from the first supply date. Despite the iPhone 5S being released 13 years ago, it still receives intermittent updates. The main reason for iOS 12.5.8 was to extend the security certificate, ensuring iMessage, FaceTime, and device activation continue to work after January 2027. While it's impressive to see Apple's commitment to basic functionality for older devices, these updates are practically unusable due to higher minimum software or hardware requirements for most apps. Nonetheless, owners of these devices can still send iMessage texts and make FaceTime calls, making the minor updates valuable for their continued usability.