iPadOS 11.2.5 (build 15D5057a) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2018-01-11T18:02:59Z. The update package is 129.79 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: 0b536189a2b550a1015586fe93efd87ab5c37081.zip.