iPadOS 12.1.3 (build 16D5039a) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2019-01-10T18:08:39Z. The update package is 223.73 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: 3c55e12ef2dd465c1cf1bbdaa33261587b4b51ab.zip.