iPadOS 9.9.12.1.3 (build 16D5032a) is an official Apple over-the-air update for the iPad Pro (10.5-inch, WiFi), released on 2018-12-19T18:06:45Z. The update package is 2.24 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 647df4db0d947ee6b28408584364feda7105418e.zip.