Version 3.4.1 addressed some security issues and fixed 21 bugs. For more information, see the release notes.
Yes, apparently there’s another WordPress update out. So you should update your wordpress blogs now to stay secured. Also, don’t forget to make sure your wordpress files aren’t using chmod 777 for file permissions, it will mean lots of trouble because it makes your wordpress files vulnerable to nasty hackers.
To update, simply click the link at the upper part of your wordpress dashboard (wp-admin) and then you’re set! Make sure to back up too, just in case
Updating your wordpress site or blogs is essential because really, hackers take advantage of the bugs that are in the previous versions.