iPadOS 9.9.11.4 (build 15F5049c) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2018-04-16T17:07:00Z. The update package is 1.7 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: 96517ee10f8807b8bd328e37931700573ecd67d4.zip.