iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2018-03-29T17:10:40Z. The update package is 715.41 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: 9baa5883e8063d29138d2bdf41fe6cab4370dcc1.zip.