iPadOS 11.2.5 (build 15D60) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-01-23T18:28:11Z. The update package is 538.8 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 20f19a42d98977c3f1b645f03e2618fa115aac24.zip.