iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-05-29T17:15:27Z. The update package is 605.18 MB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 190c83b3e557909844c778943f67d79484fd522f.zip.