Is applying for Skill worker immigration to Canada while studding allowed?

Recently, CIC (Citizenship and Immigration of Canada) has changed some rules of immigration. There is a roamer among my friends that based of 2010 rules, a student in Canada is not allowed to apply for permanent residency (as a skill worker) while (s)he is in student status. I took a look at the news post but I did not find anything related to it. Is it true?