iPadOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2019-01-22T18:08:15Z. The update package is 458.02 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 211350c675079053ce0e9b0aba742ffd2e6d9ec8.zip.