Documentation Link

https://matplotlib.org/devdocs/

Problem

Our install instructions say to install from conda, but conda's version of matplotlib isn't always the latest. For example:

But this won't work because the latest version of matplotlib on conda is 3.5.3, which is not obvious unless you know to look at the page.

Suggested improvement

Maybe we should change it to conda install -c conda-forge matplotlib since we can ensure that will work?