Difference between nvidia/cuda-toolkit and nvidia/cudatoolkit packages on Conda

[ahron1]

I am looking in the nvidia channel on Conda, I see two different packages cuda-toolkit and cudatoolkit.

cuda-toolkit happens to have newer releases than cudatoolkit. But other packages like cudnn depend on the older cudatoolkit.

So I really want to understand the difference between cudatoolkit and cuda-toolkit.