We recommend using the newest maintenance release of this version, 2020.3.3, which contains additional fixes.
Changes were applied to improve security. See ADV-2020-039 in Security Bulletins for more details.
A "Failure parsing AQL: No such column" error could occur after joining, pivoting, and then aggregating one of the resulting measure fields.
Tableau Prep Builder could show the wrong schema belonging to another data source.
When open for an extensive amount of time and logged in to Tableau Server, the product would sometimes become unresponsive.
Selecting a join node sometimes resulted in the error "System error: java.lang.RuntimeException: java.lang.IllegalStateException: MUST have a valid name for a relation"
After a published data source was overwritten by Tableau Prep Builder, field names were sometimes garbled on the Lineage tab.
Flows based on Athena data sometimes output incorrect dates when run via the Command Line Interface.
Connecting to Oracle from Tableau Prep sometimes resulted in an "oci.dll not found" error.
Generating a random sample of Snowflake data failed with the error "System error: Unable to run input node"
Saving flow output sometimes failed unexpectedly due to an internal issue with field ordering.
Tableau Prep Builder failed incremental refresh when the published extract is encrypted.
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