iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-05-29T17:15:35Z. The update package is 250.15 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: 552567699d5a7d20fcd271257103dfedf4aa6cff.zip.