iPadOS 13.4.5 (build 17F5034c) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2020-03-31T17:19:51Z. The update package is 287.2 MB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e348e2dfe9b3e83fdc01b0f3694d64fddb8eee79.zip.