iPadOS 12.1.3 (build 16D5037a) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2019-01-07T18:06:38Z. The update package is 224.66 MB. This is a delta (partial) update that requires 12.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 96330f94a34690eb9d3b74115886ff5df93fa435.zip.