Worked on the googleapis/google-cloud-php repository, focusing on dependency management and release preparation for the GAX library. Addressed upstream issues by upgrading the GAX dependency from version 1.3.0 to 1.3.1, which improved stability and reduced maintenance overhead for downstream PHP client libraries. Later, prepared and delivered the GAX 1.5.0 release, enabling future enhancements and documenting process changes to streamline ongoing development. Utilized PHP and version control tools to ensure compatibility and maintainability across releases. The work emphasized careful coordination with upstream changes and contributed to the reliability and readiness of the PHP client ecosystem for future improvements.