iPadOS 9.9.12.3 (build 16F5155a) is an official Apple over-the-air update for the iPad Pro (10.5-inch, WiFi), released on 2019-05-07T17:03:58Z. The update package is 2.3 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: 40a2b5bbf8b56fa6d7aa51db0c16cf20ae3c1bed.zip.