iPadOS 11.2.2 (build 15C202) is an official Apple over-the-air update for the iPad Air (China), released on 2018-01-08T18:10:18Z. The update package is 330.73 MB. This is a delta (partial) update that requires 11.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f8b9f24caa340bdda33156f824867d06f74f7e1d.zip.