iPadOS 12.4 (build 16G5046d) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2019-06-11T17:06:56Z. The update package is 200.16 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: 475dc5d0e9745355f4d54e3e5750d4ee8279af5c.zip.