Worked on maintaining the continuous integration pipeline for the kiesraad/abacus repository by addressing a deprecated Codecov GitHub Action. The developer updated the workflow configuration, written in YAML, to use the latest supported version of the Codecov action, ensuring uninterrupted and accurate code coverage reporting. This change preserved visibility into test coverage metrics and minimized the risk of CI disruptions due to deprecated dependencies. The work focused on DevOps practices and continuous integration reliability, demonstrating attention to long-term maintainability. No new features were added during this period, but the update resolved a critical bug affecting the repository’s automated testing infrastructure.