iPadOS 8.1.3 (build 12B466) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2015-01-27T17:55:05Z. The update package is 627.27 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 145b6b208082b345ec3b4cbf82f54c8f6cb56edf.zip.