by Howard Miller.
I should have asked you what you meant by the 'latest' version, sorry.
The *latest* stable version of Moodle is... 2.4.3+ (Build: 20130328)
The latest version of the 2.3 branch is... 2.3.6+ (Build: 20130328)
If you expect to be on the 2.3 branch then you have the latest code. If you go to Site admin > Notifications, what is the version and build shown at the bottom of the page?