iPadOS 12.4 (build 16G5069a) is an official Apple over-the-air update for the iPad Air 3 (WiFi), released on 2019-07-09T17:15:39Z. The update package is 121.83 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: 4285c686a1b0b343d2d2aff3f98f8562f3bb1d4b.zip.