iOS 11.2.2 (build 15C202) is an official Apple over-the-air update for the iPhone 6s, released on 2018-01-08T18:18:06Z. The update package is 1.13 GB. This is a delta (partial) update that requires 10.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 84ba6b75189f57cee49216e2b2ecc1459d09acbe.zip.