However on the Desktop both nVidia and AMD support the compatibility profile, so your old OpenGL programs should work. The core profile is upward compatible from 3.1, and the compatibility profile is upward compatible all the way from OpenGL 1.1.īut the compatibility profile is not required for OpenGL compilance, so the driver writers may chose to provide only the core profile in which case your 2.1 programs may not work. However in Version 3.2 the ARB defined the concept of GL “profiles” and defined the “core” and “compatibility” profiles. Most OpenGL versions are upward compatible, the only GL version which removed some APIs was the Version 3.1. lib files will be different in GL 4.3, so will my code that I wrote with GL 2.x still compile with GL 4.3? Just out of curiosity, do we still use glut in GL 4.3? I guess the. But the compatibility profile is not required for OpenGL compilance, so the driver writers may chose to provide only the core profile in which case your 2.1 programs may not work. I’m planning on getting a new PC soon, just wondering where I stand. The core profile is upward compatible from 3.1, and the compatibility profile is upward compatible all the way from OpenGL 1.1. I’m actually using the graphics chipset on my motherboard, which worked fine when programming GL 2.x.