iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2018-10-30T17:06:47Z. The update package is 1.31 GB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2c613706864fda44dd7896b74f2e8da0718c586c.zip.