iPadOS 11.3 (build 15E5201e) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2018-03-05T18:13:57Z. The update package is 282.84 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: ddc6644eb4bec16f98696ed5101513f70a4b0a4a.zip.