It is very important that you keep WordPress updated to the latest version to avoid any security issues as well as gain all the advantages of the newer releases.
If you are hosting your site with us and are on the Webmaster Plan, then there is nothing you need to do. GeekGhost actively monitors your WordPress installation and updates all plugins and WordPress itself to the latest secure version, assuring that the look and feel of your site is not compromised.
If you are not hosting your site with us, we offer a one time update of your WordPress site for only $20. We’ll update all plug-ins as well as WordPress itself and make sure that the look, feel and functionality of your site isn’t altered.
If another release happens to come out within the next 3 months from date of purchase of the WordPress Update Service, we will update your site again at no extra charge.
To request the service, please go HERE
To read about all the new changes in WordPress 3.5, visit this link: http://codex.wordpress.org/Version_3.5