From Valve Developer Community
Source 2009 Code is coming?
Is there a source for this? --Stoopdapoop 05:56, 28 June 2011 (PDT)
- No, and it doesn't seem that there ever will be. It's almost identical to 2007 so we're not missing much. --TomEdwards 05:23, 28 June 2011 (PDT)