Google has been launched many updates in Google panda and they all doing well. Many sites affected with Google panda because they still having duplicate and poor quality website content.
Now Google has confirmed new panda update. There are many survey said that more than 87% are still suffering from Panda! But I hope you are not one of them. This update is just a date refresh like previous Panda update 3.2 on Jan. 15th.
They just ran the algorithm again but of course date refresh can be serious for some sites.