I am just about to undergo an upgrade here on muddylaces. Drupal just release version 4.6. Their upgrade instructions are making me wonder if I really want to upgrade. It is not so much an upgrade of the software as it is a complete redo. Files have been replaced and moved, so many things won’t work properly. They recommend backing up (always a good idea), the completely removing the old code, replacing it with the new stuff. Gah. Lots of work. Will tackle later I think.
I did upgrade Gallery to version 1.5 yesterday. That one was super simple, except that somehow my css got lost. Fortunately that was easy enough to recover.