It replaces old syntax for new ones, such as replacing move(me,absdist,reldist) with ent_move(absdist,reldist). You may want to check the manuel as it has a list of old syntax. But last I heard, C-Updater is gone.
"Oh no, it's true! I'm a love magnet!"
Calvin from Calvin and Hobbes
My name's Anonymous_Alcoholic.