Graeme Bullimore upgraded the Angular libraries and dependencies for the hmcts/ccpay-bubble repository, focusing on enhancing frontend performance and security. He updated the project’s yarn.lock file to ensure all dependency changes were accurately reflected, supporting reproducible builds and stable continuous integration. Working primarily with Angular, TypeScript, and JavaScript, Graeme applied best practices in dependency management to streamline future maintenance and reduce technical debt. Although no bugs were addressed during this period, his work improved the application’s runtime efficiency and security posture. The depth of the upgrade demonstrates a solid understanding of modern frontend development and effective project maintenance strategies.