iPadOS 12.2 (build 16E5227a) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2019-03-18T17:06:15Z. The update package is 623.22 MB. This is a delta (partial) update that requires 12.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bd1d3e8f5b3d219d537163df0b58cd1d76800783.zip.