Christophe updated the odoo/documentation repository to reflect a new minimum PostgreSQL version requirement for Odoo 19, raising it from 12.0 to 13.0 across Linux, Windows, and macOS installation guides. He focused on documentation best practices, ensuring consistency and clarity for on-premise deployments. Using reStructuredText (RST), Christophe provided platform-wide guidance that aligns with current PostgreSQL features and security standards. The update addressed compatibility and reduced support friction by clarifying installation prerequisites. While the work was limited to a single feature and did not involve bug fixes, it demonstrated careful attention to cross-platform documentation and security alignment within the project.