WordPress 3.2 is now available to the world. It is the 15th major release for WordPress. The focus for this version was to make it lighter and faster. It is always a good practice to stay current on your version of WordPress, any themes and the plugins you are using.
There is a new default theme Twenty Eleven, full screen editor, and extended admin bar.
The new version also requires the version PHP 5.2.4 or greater and MySQL 5.0.15 or greater. There are many other features and tweaks so when you get a chance upgrade today.