iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-03-29T17:11:17Z. The update package is 696.85 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d25dc3afa975e95d1b3060526af70bc852107c69.zip.