NVIDIA GPU-Optimized PyTorch VMI 21.06 removed from marketplace?

Hi, it seems that 21.06 version of NVIDIA GPU-Optimized PyTorch VMI was removed.
I have a captured image relying on this one and now I cannot create new VMs based on it.
Any chance of denoting which one of these versions is LTS so I could make sure the time I now have to spend to create another VM does not go to waste (again)?