iPadOS 12.3 (build 16F5117h) is an official Apple over-the-air update for the iPad Pro 3 (11-inch, Cellular, 1TB Model), released on 2019-03-27T17:06:15Z. The update package is 334.12 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: 03d4e1b3939b00105344088f719dc192384e8fda.zip.