iPadOS 12.1.3 (build 16D5037a) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, WiFi), released on 2019-01-07T18:06:59Z. The update package is 320.45 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: edeba106765cfdf88a1b3af2091214bba294c552.zip.