Docker-stacks conda issues

I am using jupyter/datascience-notebook from dockerhub and it is based on base-notebook with conda 4.8.x
In my Dockerfile I would like to install additional libraries with conda, but there are problems with installation and dependencies. There is an issue on Github for this
The suggested solution is always to use conda 4.6.x.

Does anyone else have these problems and why are docker-stacks using conda version 4.8.x?