iPadOS 11.3 (build 15E5216a) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-03-16T17:05:13Z. The update package is 54.08 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: d16e15f1d8e1a43e93f3e5e834f8856e1aaf3fb3.zip.