iPadOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPad Air (China), released on 2017-12-02T08:07:08Z. The update package is 327.28 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4a7b17a23deda50463406d5e5b0361fb156c227d.zip.