How to check OpenGL Version? The version is the same as if i install Windows? I need to work with at least OpenGL 3.1, and i am not sure which version do i have. 

When i execute this command on terminal:


  glxinfo | grep "OpenGL version"


i get this message:


  OpenGL version string: 2.1 NVIDIA-8.24.16 310.90.9.05f01


However when i check the version on program called "OpenGL Extensions Viewer" it says up to 3.3 but only with core features, what that means?

What if i install Windows and update the graphics drivers, i will still be able to use OpenGL 2.2 or more?

I appreciate any help.

Macbook 15-inch, Mid 2010 with NVIDIA GeForce GT 330M 256 MB, OS X 10.9.5
Your MacBook Pro has GPU support for OpenGL 3.3 when running Mavericks. That is according to this Apple article:

http://support.apple.com/kb/HT5942?viewlocale=en_US&amp;locale=en_US

Installing Windows graphics drivers in OS X is not supported. Attempting to do so may render OS X unusable and is ill-advised.