And so far there's no OpenGL-4 software rasterizer. If your GPU can't to OpenGL-3 or OpenGL-4 then all you could do is fall back to a software implementation. However the limiting part is the capabilities of your GPU. So updating the driver may give you a major version bump. Of course the OpenGL driver itself is part of the implementation. Or in other words: A OpenGL implementation implemented along the OpenGL-3 specification will not be capable of OpenGL-4 (OTOH minor version bumps are within the capabilities of a given major implementation feature set the mostly clean up the API or give access to things which were already possible (and maybe accessible through extensions) but not formally specified in core). a major capability bump on the implementation side. Since version 3 the major version number of OpenGL is equivalent to feature capabilities, i.e. Its often compared to DirectX, which is a proprietary API by Microsoft.

it doesn't matter in which way it's implemented) the authors of the OpenGL specification clearly target special purpose hardware (aka GPUs). OpenGL is an open standard maintained by the Khronos Group, not controlled by any single corporation.It is used to render graphics in many desktop computers, mobile devices and video game consoles, and many other types of embedded devices ranging from medical equipment to aerospace instrumentation. While the OpenGL specifications are written implementation neutral (i.e. Catalyst, AMD PowerTune, AMD Radeon, AMD ZeroCore, , OpenCL 2.0, OpenGL 4.4, DirectX® 12.

Opengl 4.3 amd