iPadOS 12.4 (build 16G5027i) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular, 1TB Model), released on 2019-05-20T17:07:09Z. The update package is 76.27 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: c537eebf77b41730c5e9bd3366262eea45de1468.zip.