Virtual Connections: It was the first version to support centralized data access and security.

Connected Desktop: This version improved the workflow between web authoring and local desktop editing.

License Issues: Ensure your maintenance date hasn't expired, as Tableau keys are version-specific based on the date of purchase.

Check the Release Date: Ensure you are downloading the latest maintenance update within the 2021.4 family to get the most recent security patches. Step 3: Installation Process