iPadOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-09-12T19:06:34Z. The update package is 1.26 GB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 21894df42a619cc7a7a7b9b62aff8c4fa28104ff.zip.