iPadOS 9.9.11.4 (build 15F5049c) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-04-16T17:07:00Z. The update package is 1.73 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: 99c3f7126f95479bae2093efc0e6f8fe0154965f.zip.