iPadOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPad 3 (GSM), released on 2016-01-19T17:59:12Z. The update package is 1.19 GB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c9edd2240180cabf5119d6d99209724e68c6b0ed.zip.