iPadOS 12.0 (build 16A5308e) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2018-06-19T17:04:21Z. The update package is 528.4 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: 304511035609bc82f7efbe3e7de0f1f19e35f6f9.zip.