iPadOS 9.9.13.1 (build 17A5844a) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2019-09-18T17:06:27Z. The update package is 2.55 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: f127b7ffc8ae6f21d9f920519e1a0e32a929e24c.zip.