[NTG-context] math symbol bug ?

Dear ConTeXt developpers, While trying to use mkiv, I noticed that the output of the "\div" macro in math mode is not the division symbol as I was expecting but the "div" text. I didn't find any mention about the changes that affect the math symbols, thus considered this behavior as a bug. I apologize if I'm wrong about it. Sincerely yours F. BEN MENA