Combat Upgrade - Sony community's name for the changes made to the entire character development process of Star Wars: Galaxies an online MMORPG video game. This "Combat Upgrade" (nicknamed CU) led to a number of players demanding their
money back for the expansion that included these changes. After a week or two of protests Sony offered refunds to anyone who asked for it. Many
player towns became
ghost towns due to the reaction of
long term players who decided to depart en masse.
The Star Wars: Galaxies game is often referred to as "pre-CU" or "post-CU".