Worked on enhancing the Shopify/grpc library to ensure compatibility with PHP 8.4, focusing on library maintenance and PHP development. Addressed a typing bug by updating ServerCallWriter and Status classes to support nullable parameter types, aligning the codebase with the latest PHP standards. Raised the minimum supported PHP version from 7.0 to 7.1, updating both documentation and configuration files to reflect these changes. This targeted bug fix improved runtime reliability and reduced upgrade friction for users. The work demonstrated attention to detail in maintaining open source PHP libraries, emphasizing robust type handling and clear documentation for smoother future upgrades.