iPadOS 9.9.11.2.5 (build 15D60) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2018-01-23T18:28:38Z. The update package is 1.37 GB. This is a delta (partial) update that requires 9.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4ce64455bdecc31e3cba0b2f7221b114c58ef282.zip.