iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-03-29T17:11:16Z. The update package is 725.52 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 46d3e7cef25be7936d266bb0c87691d17c0186a5.zip.