iPadOS 9.9.11.4 (build 15F5049c) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-04-16T17:07:05Z. The update package is 1.76 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2b8c202f06514f5993ed64a453b7dd7dee32fa89.zip.