iPadOS 10.3.3 (build 14G5037b) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2017-05-30T17:28:36Z. The update package is 53.84 MB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4234c53b42e8fbad50736f3dd4ec1b18992bf7bb.zip.