I just finished the very time-consuming process of upgrading to the latest version of WordPress. I have so far only found one oddity: if you use the theme-switcher, you are redirected to a page that says “OK — the page has moved here” and you have to click again to get to the changed theme. Anyone know a fix for that? And if you find anything else that isn’t what it should be, please let me know.
Edit: The newest version of the theme switcher (0.5) fixes that redirect problem.