iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-03-29T17:11:04Z. The update package is 725.52 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a714cac2fd7311d39d7e850589e067a840859fb1.zip.