iPadOS 12.4 (build 16G5056d) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2019-06-24T17:17:02Z. The update package is 192.5 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: 21704703458ca01cada58754cac2c14c8f830ba3.zip.