I'm putting this here as I'm not advanced at OpenGL, but I'm not strictly a beginner either.
I've been looking at different rendering engines that use OpenGL for me to use in my game.
However all I've looked atof them don't support 2.1 because "it's dead", "nobody uses it", when that's obviously wrong.

I also really don't want to reinvent the wheel with making yet another rendering engine.
Does anyone know of any?