iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-03-29T17:11:05Z. 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: b21369dc6b0b24b985950652aa44705cc2e75d9c.zip.