iPadOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2017-11-16T21:18:18Z. The update package is 1.08 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: 47dfec6760724065ebf4ef10fc8549cae84492bc.zip.