First of all Happy new Year 🙂
This year started with the release of WordPress 2.0. WordPress is going better and better. The 2.0 version is slick and you get a WYSIWYG editor among the changes.
To be honest for some reason i got the latest.tar.gz containing WordPress 2.0 on Dec 27. The timestamp for my wp-config.php and .htaccess just after the upgrade is Dec 27 11:02. The upgrade from 1.5 took no more than 10 minutes without any problems.
So in short happy bloging with WordPress 2.0