Minecraft 1.7.2 just came out and i want to play, but i have two problems:

1. I need a better graphics card (im just taking it to best buy so im good there)
2. It keeps saying i need OpenGL 2.1 because its now required.

I know i probably cant get it until after i update the GC but i cant even find where to get it, i looked in the wiki and couldnt find it and only thing i can find is 4.4 or whatever it is but not where to download it.

Can someone help me please????