iPadOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-07-09T17:09:09Z. The update package is 262.27 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: 76ee27134717379d5b2f58f5e72fc638abdb6dbc.zip.