The 2011 Federal Budget received Royal Assent on December 16, 2011. There were a number of changes that affect charities, RCAAAs and other types of qualified donees that were in the budget.
Here is a copy of the press release on Royal Assent:
http://www.fin.gc.ca/n11/11-137-eng.asp
Here is a copy of the budget:
http://www.parl.gc.ca/HousePublications/Publication.aspx?Docid=5339116&file=4