Michal Smiarowski upgraded the CI/CD workflow for the threshold-network/token-dashboard repository by migrating artifact handling from GitHub Actions v3 to v4. This change addressed deprecation issues and improved the reliability of build and deployment processes. Using YAML to define the new workflow and leveraging his expertise in CI/CD and GitHub Actions, Michal updated dependencies and artifact management code to align with the latest standards. The result was a more maintainable and reproducible automation pipeline, reducing the risk of build failures due to outdated actions. His work ensured future compatibility and streamlined artifact handling across different deployment environments.