iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad Pro (10.5-inch, WiFi), released on 2018-10-30T17:07:16Z. The update package is 1.3 GB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 25042cbe26b9ea8e6695e66c4af8cb6e7e2e4f6f.zip.