aristotle - 12:31 pm on Oct 3, 2012 (gmt 0)

Mark Cutts confirms there was another update except EMD on this day here: https://twitter.com/mattcutts/status/252484514486575104 However I can't figure out what update this was. Anyone with an idea?

For those like me who don't have a twitter account, exactly what did Matt Cutts say?