iPadOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2017-12-02T08:10:46Z. The update package is 355.77 MB. This is a delta (partial) update that requires 11.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f11ba56c93248605af14e27b233ea933d6eaf982.zip.