Arnaud focused on enhancing the clarity and professionalism of the WordPress/hosting-handbook documentation by delivering targeted improvements to the server-environment.md and upgrading.md guides. Using Markdown and applying strong documentation skills, Arnaud corrected typographical errors and refined language to improve readability, ensuring that users receive clearer guidance on server environment setup and upgrade processes. The work involved careful editorial review and attention to detail, resulting in more consistent and accessible documentation. While no bugs were fixed during this period, the contribution addressed quality and usability issues, supporting better user experience for developers and administrators referencing the hosting-handbook repository’s technical documentation.