iPadOS 11.2.5 (build 15D5046b) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2017-12-19T18:03:14Z. The update package is 81.17 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: 9617e737c0dc6d29f80f1b7f78cd502ad8a8df1e.zip.