Hi dudes, 
we have a Zbrush 2018 license server, with running in our highschool. We want upgrade clients to 2019 version, but we aren’t sure thar it continue working without any changes in the license server.
Can somebody assist us?
Many thanks!
Please see the “ZBrush Floating License Users” section of https://support.pixologic.com/Knowledgebase/Article/View/294/84/upgrading-from-an-earlier-zbrush-version