Product release and download

Tableau Prep 2021.1.1

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

Download Tableau Prep 2021.1.1 Download latest version (Recommended)

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The download file for this version has been removed due to the security issues currently identified in CVE-2021-44228 and CVE-2021-45046. In order to address these security issues, you must update to the newest version of your desired Tableau product. For more information please see the Knowledge Article, Apache Log4j2 vulnerability (Log4shell)

Starting in September, 2023, fixed defects can be found on this site. Additional defect information is available at[sfcategoryfull]=Tableau.

Resolved Issues

Issue ID Description

"System error: System Error" would display when a Flow with more than 10 SPLIT() operations was run.


An incorrect export could result in a CSV after replacing NULL with a ZN function.


The product could stop working when there were over 3000 changes in a single clean step.


With some versions it would not be possible to view all fields in a list from a Union result.


It would sometimes not be possible to edit the filter values in a new inserted flow that contained a clean step with selected values.


An input to a union would sometimes throw an incorrect error that a CSV file was not loaded.


"System error: Unable to run input step: Unable to generate output to database or file: all inputs to union must have matching column types" could occur at the final union step of the flow even though all column types match.


A "No such column. DataServiceFailure" error could occur when connected to an data source with object model relationships.


In version 2020.1.5, the flow file could be unresponsive when a pivot node was selected. The error would sometimes display the following text, "Failure evaluating to database: [143] hyper_execute_query: 0 Could not allocate enough memory."


The 2020.4.1 installer will show a new option in the "Install customizations" to select the option for the ability to "check for product updates". This option is for future functionality and currently does not work.

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Build number

Release date

Tue, January 19, 2021