iPadOS 9.9.11.2.5 (build 15D60) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-01-23T18:25:25Z. The update package is 1.22 GB. This is a delta (partial) update that requires 9.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 62a68d244fa90c712f13c230757cc71fa970deba.zip.