iPadOS 13.4 (build 17E5249a) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2020-03-03T18:19:45Z. The update package is 721.4 MB. This is a delta (partial) update that requires 13.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 76f6a9ceb754b2d9f5253c7f0e9911fdaa8cf710.zip.