OpenGL 2.0 came out in 2004 with a pipeline that still looks quite modern, using buffers and shader programs with GLSL, as opposed to 1.0-style immediate mode r

OpenGL 2.0 came out in 2004 with a pipeline that still looks quite modern, using buffers and shader programs with GLSL, as opposed to 1.0-style immediate mode rendering. Both 3.0 and 4.0 were comparatively quite minor updates.