I have an old GPU (Kaveri) and most recent amdgpu-pro driver (on Ubuntu 18.04.2) - but I still have only OpenCL 1.2.
If older GPUs have hardware limitations in supporting newest OpenCL 2+ features - where can I find a table, showing just that?
OpenCL has been supported by Radeon and Geforce cards for a lone time. OpenCL 2.0 is comparatively new so driver support may be slow to catch up.