iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2018-05-29T17:15:03Z. The update package is 594.21 MB. This is a delta (partial) update that requires 11.2.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 044b37883b2dfe22e3634d58518dc6a6d8278b0d.zip.