Worked on upgrading the continuous integration pipeline for the ethereum/execution-spec-tests repository, focusing on artifact management and CI reliability. Addressed deprecation warnings by updating the GitHub Actions upload-artifact step from version 3 to version 4, ensuring ongoing compatibility and maintainability. Improved traceability by enhancing artifact naming conventions to include the run ID and attempt, making it easier to debug and track CI runs. Introduced a compression level for coverage results, optimizing artifact size and reducing transfer overhead. The work was implemented using YAML and leveraged CI/CD best practices, resulting in a more efficient and reliable pipeline for the project.