[Delk]

Well, not really to the OpenGL spec itself. It's about a new OpenGL extension being added to the extension registry. Vendors may implement it if they wish. AFAIK the core OpenGL spec hasn't been updated in years, so even though new extensions keep getting developed by vendors, the official baseline hasn't moved.

I suppose the same is true of Direct3D 11, though. Only the Direct3D 12 spec has been updated in years from what I can tell. (I'm not a graphics programmer.)

[fulafel]

A main reason to do new OpenGL releases was to roll developed extensions to required features of a new OpenGL version to give application programmers a cohesive target platform. The pace of API extensions has slowed down enough that it's not going to be a problem for a while.