Worked on enhancing the CI/CD pipeline for the pantheon-systems/documentation repository by upgrading the GitHub Actions cache action from version 2 to version 4. Focused on improving pipeline reliability and performance, the upgrade was applied across multiple workflow steps, leveraging the latest cache behavior to stabilize and potentially speed up builds. Updated the associated documentation in github-actions.md using Markdown to ensure clarity and accuracy for future contributors. The work centered on CI/CD best practices and GitHub Actions automation, with no major bug fixes during the period. This targeted feature improved the maintainability and efficiency of the repository’s continuous integration process.