iPadOS 11.2.5 (build 15D60) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-01-23T18:25:39Z. The update package is 466.04 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: 7472fc4503a79426f153c30c7310fab3ed6ec34e.zip.