iPadOS 12.4 (build 16G5056d) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2019-06-24T17:17:05Z. The update package is 277.33 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: f57633a5391da534939a16ec7d0f5c391f2133ee.zip.