iPadOS 9.3.5 (build 13G36) is an official Apple over-the-air update for the iPad 3 (WiFi), released on 2016-08-25T16:53:11Z. The update package is 1006.03 MB. This is a delta (partial) update that requires 8.1.3 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: d7717e89998d7759aeeeef7d3c2d6de7070111c1.zip.