iPadOS 8.1.3 (build 12B466) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2015-01-27T17:55:05Z. The update package is 596.8 MB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bc3d4cffb30f0d144e46222051db559a884d57cf.zip.