iPadOS 12.4 (build 16G5027g) is an official Apple over-the-air update for the iPad Pro 3 (11-inch, WiFi), released on 2019-05-15T17:05:28Z. The update package is 267.17 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 53d82eacdd57f0ebfc8b1bc34bc6f94fc66dc776.zip.