Tableau 9.0.6 and 8.3.10 are now available to everyone with current maintenance. You can download these from the Customer Portal.
Also available are Tableau 8.2.15 and 8.1.23. You can download these from the Alternate Download Site.
A list of changes in these versions can also be found on the Release Notes page.
If you have any questions about this upgrade please contact Customer Service.
The Community team is going through and cleaning up some older posts. Thanks for sharing this!