A new major version of the content-management-system of this site has been installed (Drupal 6.15, to be exact). This should result in a smoother, more performant site and also fix a few (rare) bugs.
While I have tried to test everything, if you notice anything has changed for the worse or does not work anymore, please let me know in the comments!
Also, some defaults may have changed. If you do not like this, let me know, too.