MySQL was upgraded earlier tonight at approximately 1:20 AM EST (-0500 GMT) to address a severe security hole in the yaSSL layer. It’s doubtful anyone noticed the upgrade, especially since the servers are going down in 24 minutes for the new kernel. This is just a heads-up that we went from 5.0.51 to 5.0.51a.
Emergency MySQL Upgrade to 5.0.51a