iPadOS 12.1.3 (build 16D5039a) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular, 1TB Model), released on 2019-01-10T18:08:53Z. The update package is 98.74 MB. This is a delta (partial) update that requires 12.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 02739741568ce07653b2028a69bfff00d4a979f6.zip.