iPadOS 11.3 (build 15E5216a) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2018-03-16T17:05:09Z. The update package is 53.19 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5f490139d96cbb9042816f67c73656d97c6dd388.zip.