iPadOS 12.4 (build 16G5027i) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, WiFi), released on 2019-05-20T17:07:06Z. The update package is 267.29 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: 98a8870a52447af2ed3e4e742336cb36dfc23e66.zip.