iPadOS 9.9.11.1 (build 15B5086a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2017-10-16T17:04:08Z. The update package is 1.76 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: e315a99d1b5d3789292678a92f2f0818667ac5ad.zip.