iPadOS 11.3 (build 15E5189f) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2018-02-20T18:06:20Z. The update package is 293.69 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 71c11d8239d3a29a9130863f09827c2f026a9cbc.zip.