iPadOS 12.1 (build 16B5068i) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-10-02T17:11:51Z. The update package is 384.2 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 621f902f327cafcf4498b2cd3ca959c473576a47.zip.