Changes were applied to improve security. See ADV-2019-004, ADV-2019-005, ADV-2019-007, ADV-2019-008, ADV-2019-009, and ADV-2019-010 in Security Bulletins for more details.
Some NUTS (territorial geocoding classifications) values are not recognized in Tableau.
When using a newer version of Tableau to refresh a workbook created in an older version of tableau which used certain pre-defined fields from a Sharepoint list data source, the view sometimes became blank. When editing the workbook, the pre-defined fields sometimes appeared invalid, with a red exclamation mark.
In some Windows Server 2016 environments, Tableau Server could occasionally become degraded or unresponsive. For more information, see this KB .