iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2018-10-30T17:04:54Z. The update package is 305.91 MB. This is a delta (partial) update that requires 12.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f3c3838903afba19d0b4242982c74c2fd7b4bd2e.zip.