I just installed WordPress 2.0. It went without a hitch. All I had to do was download the tar.gz, copy all the stuff in my old WordPress ./wp-content/plugins directory to WordPress 2.0’s plugins directory (same location), and copy my old wp-config.php file. Then I just visited ./wp-admin/upgrade.php and it was done. That’s it. It appears to be working.
I don’t know if it did anything to my database. I haven’t checked it yet (nor do I plan to).
The new rich text editor is a bit akward but it works. It seems to insert extra spaces if I type too fast, but we’ll see how well it goes in the coming days.