iPadOS 8.1.3 (build 12B466) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2015-01-27T17:55:05Z. The update package is 249.24 MB. This is a delta (partial) update that requires 8.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 558b40101c8d5f40d902e1c4ccfd7f5eb4974a8e.zip.