OpenGL implementations

How do I get hold of the latest OGL implementation for any platform?

How would one do if one would develop an OGL game and not be knowing if the users had OGL, could one just ship OGL with the game?

Most modern graphics cards have openGL support so unless your target audience is people with 10 year old computers you should be fine. Just put somewhere in the system requirements that the games requires the lates openGL drivers for the graphics card. The latest version of openGL is on this website. Oh yeah if you are using glut for windowing you may need to ship or release the program with the file glut32.dll but im not sure about this