Tableau 8.1.8 is now available to everyone with current maintenance. You can download it from the Customer Account Center. This release contains a critical security fix to Tableau Desktop, Tableau Server, and Tableau Reader that reduces exposure to man-in-the-middle and denial of service vulnerabilities. To address these vulnerabilities, the OpenSSL library used by the affected Tableau products has been upgraded. See a list of changes on the Release Notes page.