It has finally annoyed me enough to post. Can you please arrange for someone to correct the metadata on your security bulletin webpage.
Line 137 - <meta name="description" content="Security update for Flash Player, released December 10 2013."/>
So when I embed a link in Yammer, it shows the relase date as December 10 2013. I know this isn't stricly a Flash Player issue but I cannot see another way of reporting this.