The migrations V2 beta has finished and has been replaced by a new version of migrations. DLM Automation 2 has dropped support for migration scripts created in the beta.

If you were previously using that feature, before using the new migrations feature in SQL Source Control 5, you need to ensure that all of your migrations created in the v2 beta are deployed to every database in every environment using DLM Automation 1.5 or previous.

From DLM Automation 2, any migrations created with the beta will be ignored during deployment.