iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2018-10-30T17:05:06Z. The update package is 310.51 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: 784e730b9a639cb711e7023364e94bb60403985c.zip.