iPadOS 11.2.2 (build 15C202) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2018-01-08T18:09:37Z. The update package is 330.77 MB. This is a delta (partial) update that requires 11.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ac0001c1ea7d1bf263403ca5ea5dcc9cc7bf01a4.zip.