iPadOS 12.1 (build 16B5084a) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2018-10-15T17:02:53Z. The update package is 165.63 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: 3ca52531c3f2a09e813170dd763ce7f537acd62b.zip.