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Tableau Server 2018.2 comes with a new web-based server configuration utility called Tableau Services Manager (TSM). Upgrading to this version requires special steps. Please see this article for instructions on what has changed to ensure your upgrade goes smoothly.Accessing Published Extracts
In Tableau Server 2018.2, users may experience an issue with published extracts when the OS locale does not match one of the supported Tableau languages. Please see this article for more information.
This release contains a critical security update that addresses the Heartbleed security issue.
Heartbleed is a critical security vulnerability in the OpenSSL library (version 1.0.1). OpenSSL is an open source software that is used by many websites and software products, including some Tableau products. The Heartbleed vulnerability allows a remote attacker to read client or server application memory. This can allow for encryption keys to be read, which can enable the decrypting of data obtained by intercepting traffic. For more details on Tableau’s updates for this issue, the Tableau products that are affected, and how to upgrade Tableau, see the Heartbleed Issue Knowledge Base article.