I haven't installed yet on Ubuntu, but have done it on RHEL. My thought is that it will work on 18.04, but Tableau engineering either hasn't gotten around to updating their web page, or they haven't tested / certified the newer release yet. Is 18.04 much different?
We have Tableau Server running on Ubuntu 16.04. We would like to upgrade Ubuntu to 18.04, but we aren't sure if Tableau Server will continue to work. No matter how big are the differences between Ubuntu 16.04 and 18.04 it would be great to have the information are there any plans about Ubuntu 18.04 support in a foreseeable future.