iPadOS 6.1.3 (build 10B329) is an official Apple over-the-air update for the iPad 3 (GSM). The update package is 31.66 MB. This is a delta (partial) update that requires 6.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2c35ae8cbafc9b1c1a5905bceb5481c93a4cefc8.zip.