iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2018-05-29T17:15:09Z. The update package is 715.4 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2308ce1c51faf2a7828813ce0b1d24b810b68211.zip.