iPadOS 11.2 (build 15C5097d) is an official Apple over-the-air update for the iPad Air (China), released on 2017-11-06T18:00:49Z. The update package is 101.59 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 182ccdeeab9f7c40fc51eb84e7b4dde7f9e8670b.zip.