iPadOS 9.9.12.1 (build 16B5089b) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2018-10-22T17:01:41Z. The update package is 2.04 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: 9467e4661c7fd0e8bb4d303e767eca0fb1ed2085.zip.