iPadOS 8.1.2 (build 12B440) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2014-12-09T17:49:04Z. The update package is 419.05 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4bfb634fbb9b27dee2c32cd1ddcebff862f048fd.zip.