difference between istqb-foundation-level-syllabus-2011 vs /istqb-foundation-level-syllabus-2007

i want to know difference between istqb-foundation-level-syllabus-2011 vs /istqb-foundation-level-syllabus-2007.

I have 2007 certified book. can i use for foundation-level-syllabus-2011?

Please help me

Thanks Rohit