installation Question

Hello

i read that to install black mesa you need to install source sdk base 2007 before you install blackmesa, what if i install source sdk base 2009 instead of source sdk base 2007?

will there be any problems? i do have a directx11 GPU (gtx470).
can anyone help/answer this question.

Thnx

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valveā€™s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.