iPadOS 11.2.2 (build 15C202) is an official Apple over-the-air update for the iPad Air (China), released on 2018-01-08T18:10:20Z. The update package is 55.94 MB. This is a delta (partial) update that requires 11.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f6b41d3f4aec742cb5fcf57d80f7792ec56e0b8e.zip.