As an avid user of WordPress I just found out (because I spend some days not being behind a computer) that WordPress has had an update a couple of days ago. The major drive for me to upgrade it that there was a security issue with the administration tool. Besides that there are some small performance enhancements as well. Read all about it in the announcement at the WordPress site. I’ve just updated my instalment and may I suggest you do it as well as quickly as possible.