iPadOS 11.3 (build 15E5216a) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, WiFi), released on 2018-03-16T17:05:12Z. The update package is 54.15 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: de41c5625a6dc3299adb7c7d536954e73d1dc7f8.zip.