Ubuntu 20.04 images with cudnn

I see ubuntu20.04 images without cudnn (e.g. 11.0-devel-ubuntu20.04) and ubuntu18.04 images with cudnn (e.g. 11.0-cudnn8-devel-ubuntu18.04), but no ubuntu20.04 images with cudnn.

I can't find any information about this omission. Is the omission intentional? Would it be possible to add ubuntu20.04 images with cudnn?