iPadOS 12.1.1 (build 16C5036c) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2018-10-31T17:03:45Z. The update package is 272.95 MB. This is a delta (partial) update that requires 12.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 36e15bb7236b48825ec8c988548724a150d09219.zip.