iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad Pro (10.5-inch, WiFi), released on 2018-10-30T17:07:13Z. The update package is 1.37 GB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 51bc9e2f7a4063cd5c8c5524a3f1c0d578f0cd13.zip.