iPadOS 9.9.11.3 (build 15E5216a) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2018-03-16T17:05:06Z. The update package is 1.74 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: 25856475270ae56c31caec62b4fdbd56873f6f40.zip.