I\'ve been looking for an OpenGL book lately and noticed that the OpenGL programming guide (2010) is deprecated. What\'s so different about OpenGL 3.x from 2.x?
Many things, actually. Immediate mode is deprecated. To get OpenGL 3.0 functions, you now should create OpenGL 3.0 context explicitly (existing OpenGL 2.0 programs won't do that, so they get 2.0-compatible context). API has been expanded as well (see http://www.opengl.org for details).