iPadOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2018-07-09T17:08:31Z. The update package is 722.81 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: 4faf74dfde7d940ff66d5f5c3e08f1da586d009c.zip.