Product release and download

Tableau Prep 2019.1.1

We recommend using the newest maintenance release of this version, 2021.3.1, which contains additional fixes.

Download Tableau Prep 2021.3.1

Build number

Download Tableau Prep 2019.1.1

Release date

Thu, 10 January, 2019

Product support

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Resolved Issues

Issue ID Description

Flows involving custom SQL may error out if there are multiple branches leading back to the same custom SQL node.


When attempting to open a Tableau Prep .TFLX or .TFL file on a Mac, the file may not open when double-clicked.


When double clicking a .tflx file in Tableau Prep 2018.3.3, Prep launches but the file does not open which was not the case in previous versions.


When a proxy server was configured on Windows, sometimes Tableau Prep failed to launch.


When you used "Group and Replace" on a duplicated number field that was converted to string, a "collation mismatch" error occurred.


When you used a wildcard filter to exclude some values, Null values were also removed.


Tableau Prep quit unexpectedly when disabling Share Usage Data to Improve Tableau Prep when logged into the computer as a non-admin user.

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