iOS 11.2 (build 15C5110b) is an official Apple over-the-air update for the iPhone 6s, released on 2017-11-17T18:14:05Z. The update package is 34.6 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a33a0024934bbc565f9d892653fc045da166e507.zip.