iPadOS 12.4 (build 16G5056d) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, WiFi), released on 2019-06-24T17:17:03Z. The update package is 277.4 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: c29935aea71f8ae20b683f93567193839318627b.zip.