Changes were applied to improve security. See ADV-2019-024 and ADV-2019-025 in Security Bulletins for more details.
In Tableau Server 2018.2 or higher, some dashboards did not show data upon initial load, requiring one or more manual refreshes of the view in order for it to appear.
When Tableau Server was installed in a non-default location on Windows, the Obliterate script did not remove tableauservicesmanagerca.jks.
TSM allowed HTTP TRACE requests.
If the user account used to install Tableau Server was removed from the machine or domain, configuration changes would fail and Tableau Server could become degraded.
After a failed backup, partial copies of backup files created were left over and not deleted in the Tableau Server data directory under the relative path of data\tabsvc\tabadminagent\0\filetransfer.
After publishing a workbook that contained a parameter on Tableau Server, the drop down menu of the parameter would inherit the colour of the object behind it, creating a mismatch in the design between Desktop and Server.
On Tableau Server, pressing the ESC key would reset a single value dropdown filter to display "(All)" values even though the filter was customized to not "Show All Values".
On computers with Skylake X CPUs or other CPUs with the AVX512 instruction set, sometimes loading views caused Hyper processes to restart unexpectedly, or other server stability issues.
Subscription emails had a different return_path email address that did not match with the "From" e-mail address.