iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2018-03-29T17:10:28Z. The update package is 715.61 MB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c9278de638236d3f906bc95bc738d9a7b94d8da4.zip.