iPadOS 9.9.12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, WiFi, 1TB Model), released on 2019-04-22T17:08:37Z. The update package is 2.65 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: def81b8fccf8b2fdeeb9820432088830db3f35dd.zip.