With the upcoming changes to Mac OS Catalina, to be launched in October, we should warn our users against updating as that will break Cura LulzBot Edition.
At a minimum, we can post on LulzBot.com/Cura, under:
Minimum System Requirements
Mac OSX 10.7 or newer
Do not update to Catalina (link)
with a link for context to why it's not recommended
We should also post on the Cura Mac install guide. Thoughts on copy alternatives?