Changes were applied to improve security. See ADV-2020-020, ADV-2020-021, ADV-2020-022, and ADV-2020-024 in Security Bulletins for more details.
Tableau Server 2019.1.5 is intermittently inaccessible and numerous "unable to create native thread" errors and failures to start tabprotosrv appears.
Reference line renders differently between Tableau Desktop and Tableau Server in version 2018.3. When using version 10.3, the views are the same in both Tableau Desktop and Tableau Server.
In Tableau Server 2018.3.3, guest user is unable to web edit published workbooks.
When Tableau Server is not set up for Google Big Query Oauth, clearing all saved credentials server-wide at /#/server/settings causes vizzes with GBQ embedded credentials to throw this error when viewed: "You are not authorized to perform this action".