iPadOS 11.2.2 (build 15C202) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-01-08T18:14:14Z. The update package is 359.15 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: 3c1e62e1104d089e86e3efb70373e2664f497a25.zip.