iPadOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2019-01-22T18:08:16Z. The update package is 452.98 MB. This is a delta (partial) update that requires 12.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 96f8b8bf309cb066930331075ed51a4e3cce47c1.zip.