iPadOS 11.2.5 (build 15D5054a) is an official Apple over-the-air update for the iPad Air (China), released on 2018-01-09T18:03:00Z. The update package is 127.25 MB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: aa600ed80dbafc83f9bace0aa6fe9d7b47803b0b.zip.