I’ve just upgraded to the 2.0.1 release of WordPress. And in just a month after the release of WordPress 2.0, 114 bugs were fixed. And if you use dial-up for your internet connection, trust me, this is not just a five-minute upgrade/install. Transferring of data takes 98 percent of the time required for you to finish upgrading it. Just remember that everytime you upgrade your WordPress, do not delete wp-config.php and also the wp-content folder. Check the details of the bugs fixed here.