iPadOS 9.9.13.4 (build 17E255) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2020-03-18T17:21:55Z. The update package is 2.67 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: cf1cf4044795a424ff2fd4edac16bb162d78ec11.zip.