iPadOS 12.1 (build 16B5059d) is an official Apple over-the-air update for the iPad 6 (WiFi), released on 2018-09-18T17:20:14Z. The update package is 385.37 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: 3563e904646db753f323685fe1d6aac4b4e999c1.zip.