iPadOS 12.4 (build 16G5027i) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular), released on 2019-05-20T17:07:08Z. The update package is 271.54 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: cfaf6151500a9670aa0ad06445b078ad4b8e19a9.zip.