WordPress 3.3 is now available for download. It has some great new features, including a drag-and-drop photo uploader. You can learn more about it on the WordPress blog.
While WordPress 3.3 has some great new features, I’d recommend not updating for about a week. Some plugins are having problems with the new WordPress code. So give the plugin developers a few days to update their work and then update away!
Once you’ve completed the update, take a look at your site and make sure that everything still works. If you do discover a problem turn off the plugin and email the developer of the plugin about the issue. They should be able to update their plugin to work with the new software.