iPadOS 9.9.11.2.5 (build 15D60) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2018-01-23T18:27:45Z. The update package is 1.48 GB. This is a delta (partial) update that requires 8.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c42d8a193224245357e8ee8131400dfd27aad261.zip.