iPadOS 13.4 (build 17E5255a) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2020-03-10T17:20:55Z. The update package is 75.18 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: 04840593edec99e17c08ae4e4299e97ea84c940d.zip.