iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2018-10-30T17:06:42Z. The update package is 1.67 GB. This is a delta (partial) update that requires 10.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 515c5f78b5a6a74e5c2280fc06e7b7c44628fb1f.zip.