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 1.1 GB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7553710cfbf003f8661aea2e1d96674dc87b958a.zip.