Worked on the zuplo/zudoku repository to update the React and React-DOM dependencies to version 19.2.1, focusing on maintaining compatibility with the latest features and bug fixes in the React ecosystem. The approach involved modifying package.json and pnpm-lock.yaml, followed by running the full test suite to ensure reproducible builds without failures. This work helped reduce technical debt and supported long-term maintainability of the frontend codebase. Leveraged skills in JavaScript and front end development to align project dependencies with current standards, minimizing the risk of regressions and ensuring the application remains up-to-date with evolving React best practices.