iPadOS 12.3 (build 16F5155a) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2019-05-07T17:03:52Z. The update package is 356.21 MB. This is a delta (partial) update that requires 12.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0e846787d2472abbb1458048a4591c50bb845b64.zip.