https://wccftech.com/apple-releases-ios-12-4-2-and-watchos-5-3-2-for-older-iphone-and-apple-watch-models/

Even though Apple has released iOS 13 to users across the globe, the company has released a new update for devices which do not support the latest firmware. That’s right, Apple has released iOS 12.4.2 and watchOS 5.3.2 for older iPhone and Apple Watch models. Let’s dive in to see what Apple has included in the latest update.

Apple’s iOS 12.4.2 release is oriented towards the original iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad Mini 2, iPad mini 3 and the sixth-generation iPod touch. All of the aforementioned devices do not support the latest iOS 13 update. The update can be downloaded over-the-air by opening the General section in the Settings app and then tapping Software Update.