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Sonja_Bauernfeind
Digital Support
Digital Support
3 weeks ago

Upgrade advisory for Qlik Sense on-premise November 2024 through November 2025: ODBC-based connectors

Edit January 21st 2026: Updated the title and content to include the November 2024 release

During recent testing, Qlik has identified an issue that can occur after upgrading Qlik Sense on-premise to specific releases. While the upgrade completes successfully, some environments may experience problems with ODBC-based connectors after the upgrade.

The issue is upgrade path dependent and relates to connector components that are included as part of the Qlik Sense client-managed installation.

The advisory applies to the following releases:

  • Qlik Sense Enterprise on Windows November 2024
  • Qlik Sense Enterprise on Windows May 2025
  • Qlik Sense Enterprise on Windows November 2025
Recommendation: After upgrading Qlik Sense on-premise, verify your connector functionality as part of your post-upgrade checks.

How can I identify if I am affected?

The issue can typically be identified by files being missing after the upgrade. In this example, the Athena connector is not working, and the following file is missing:

C:\Program Files\Common Files\Qlik\Custom Data\QvOdbcConnectorPackage\athena\lib\AthenaODBC_sb64.dll

In this example, all ODBC connectors stopped working:

C:\Program Files\Common Files\Qlik\Custom Data\QvOdbcConnectorPackage\QvxLibrary.dll

With the QvxLibrary.dll missing, both existing and newly created ODBC connections will fail.

How do I resolve the issue?

A fix will be delivered in upcoming patches. Stay up to date with the most recent version by reviewing our Release Notes.   

Workaround

If your connectors have been impacted by this upgrade, rollback your ODBC connector package to the previously working version based on a pre-update backup. See How to manually upgrade or downgrade the Qlik Sense Enterprise on Windows ODBC Connector Packages for details.

The workaround is intended to be temporary. Apply the fixed Qlik Sense Enterprise on Windows patch for your respective version as soon as it becomes available.

If you are unable to perform a rollback, please contact Support.

 

If you have any questions, we're happy to assist. Reply to this blog post or take your queries to our Support Chat.

 

Thank you for choosing Qlik,
Qlik Support

 

 

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