iPadOS 12.3 (build 16F5117h) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2019-03-27T17:06:03Z. The update package is 294.99 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: ffb6155134ecde392b3e2669d25bb408015c46fa.zip.