download latest opengl version

Hi, I am new to opengl. Could anybody please tell me where I can find new version, I am still using 1.0 version.
Thanks in advance.

If you have good graphics card and proper drivers you already have latest OpenGL.
check this

And this :

Thanks a lot! This is just what I am looking for.
However, I still wonders why I can’t find lots of new function declarations in my current gl/gl.h header file. If I install the latest graphics card driver, will it update these header files?
(I am new to openGL, sorry for my stupid questions)

Yeah, I do need to read this carefully. I am even sorry for my questions. Thank you, ZbuffeR.