iPadOS 11.3 (build 15E5211a) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, WiFi), released on 2018-03-12T17:05:36Z. The update package is 211.25 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: 947c1f2108a2c8aff9a13ccaed8f94e13ba4f39c.zip.