iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2018-05-29T17:14:50Z. The update package is 594.33 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: c2c7cfaa289d2abe5730dbe3425e3e7ee21d7e92.zip.