Thanks for your reply. I thought given the major version bump I would hold off on updating in case of any breaking changes, or kinks that need to be ironed out. I also don’t have the bandwidth to answer questions about the new features like chat right now, but it looks like that won’t be enabled automatically so that’s fine.
I guess since Discourse runs in a Docker container, if my server (Ubuntu 18) can run Discourse v2 it should be able to run Discourse v3?