iPadOS 9.9.11.1.1 (build 15B6150) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2017-11-09T18:03:05Z. The update package is 1.68 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: ea6057e276ebd5547c9b963d55a3cbe016a470f9.zip.