iPadOS 12.3 (build 16F5148a) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2019-04-29T17:35:51Z. The update package is 97.57 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f901b088f072eda4add72cda17bf85a510fc83cd.zip.