metllicamilitia
Ambassador
This was only for 6s and lower I believe along with iPad Air and lower models
From what I’ve read, the update targets iPhone devices older than the iPhone 7.
According to Reddit these are the devices that get Update 1, Pad Air, iPad mini 2, iPad mini 3, iPad mini 4, iPad Air 2, iPad 5, iPad Pro (12.9-inch), iPhone 5s, iPhone 6 Plus, iPhone 6, iPhone SE, and according to the 9to5 Mac article it fixes an issue with downgrading from iOS 11.
^^^