Hello @juanjomendez96 

Updates to the control plane and user interface are typically automatically rolled out in staged deployments across regions and workspaces because Databricks manages the core platform, including the user interface, as a SaaS service.

This means that, unlike self-hosted software, you cannot directly pin or control the version of the entire platform. 
As you can see from the release notes, there is no built-in way to opt out of platform UI general availability (GA) updates.

Manage/resistrick your databricks account 

As a workspace or account admin, go to the Previews page in your workspace (accessible via the admin settings menu under your username in the top bar). More details on this can be found on the website : 

https://docs.databricks.com/aws/en/admin/workspace-settings/manage-previews#manage-previews 

If you are trying to toggle between databricks sql current to preview or vice versa 

If you want to switch between versions (Current → Preview or vice versa), you need to restart the SQL Warehouse. This works similarly to Databricks Runtime, but if the warehouse is set to Current, it will automatically update when Databricks releases a new stable version

Now, as you mentioned about terraform being used to control the deployment, may be see if there is any code which has databricks_runtime_version is showing preview rather than current.

I am also open for other solutions for this case.