iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2018-05-29T17:15:20Z. The update package is 240.65 MB. This is a delta (partial) update that requires 11.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a00d16185e13eb7175081c5d366bf4220c5552c1.zip.