iPadOS 12.4 (build 16G5038d) is an official Apple over-the-air update for the iPad Air 3 (WiFi), released on 2019-05-28T17:06:57Z. The update package is 255.02 MB. This is a delta (partial) update that requires 12.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 447c10ba04842b27c8b145e1ef707e9dc979bd35.zip.