iPadOS 9.9.13.6 (build 17G5059c) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2020-06-30T17:22:23Z. The update package is 2.68 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: 7142895772b9d5112c791eaa44727cccf248bebb.zip.