iPadOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2017-12-02T08:06:47Z. The update package is 327.3 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: dcfeaf62d7daf912959893618ec9f2ca1eb7051b.zip.