HI, i'm going to start learning opengl with freeglut. The thing is, I don't know what version to use, I've made some research and it seems that opengl 2.1 would give me the most portability and would be compatible with old hardware. But I also found that in opengl 3 a lot of things from older versions are deprecated. I don't want to make an app wih some outdated software, but my graphics card supports opengl 3.0 and all the tutorials I found are for opengl 3.3 or greater.
Which version do you recommend me? Is opengl 2.1 a good option if I want compatibility with old hardware? Or it's just to old?
Any tutorials are also apreciated