That’s right, the new version of WordPress is out. From the looks of it, it’s mostly a bug-fix release, with a few of those bugs being security-related. A lot of the fixes are kind of “under the hood” changes, so you might not notice a difference, but the system should be subtly faster and more stable with a variety of browsers.
Upgrade instructions are available, or get in touch if you’d like us to do your upgrade for you.