This plugin, Wordpress Automatic Upgrade, is honestly one of the best things to ever happen to me. You and I both know how annoying it is to login to your wordpress blog, and see that bar across the top of the screen that says the new wordpress is available and that you should upgrade. You know that you should, because it’s probably better than the version you have now, else it wouldn’t have been updated right? Don’t worry, I feel your pain, I know just how annoying it is to have to upgrade it manually. What’s more is for those of us, yes myself included, who have never actually performed the operation themselves, too afraid that they may loose something valuable. Well that’s where the miracle plugin comes in. In just a few simple steps, click-click-click– and voila, you are the proud owner of the new and improved version of wordpress. So what are you waiting for? Your just a few clicks away from freeing yourself from wordpress upgrade anxiety.

http://wordpress.org/extend/plugins/wordpress-automatic-upgrade/#post-2560