iPadOS 12.1 (build 16B5068i) is an official Apple over-the-air update for the iPad Pro (10.5-inch, WiFi), released on 2018-10-02T17:11:52Z. The update package is 240.15 MB. This is a delta (partial) update that requires 12.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0fb4420ba63bdeb057ba9d1f2fc474b96192bcf6.zip.