iPadOS 12.2 (build 16E5191d) is an official Apple over-the-air update for the iPad Air (China), released on 2019-02-04T18:05:36Z. The update package is 600.74 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: c87b3134b3e92d9653abe3229365810f0a433a53.zip.