During November 2024, Khanh Hoang focused on maintaining compatibility for the prosopo/captcha repository by addressing a Node.js 22+ upgrade issue. He delivered a targeted bug fix that updated the JSON module import syntax to use the new "with { type: 'json' }" approach, replacing the deprecated 'assert' syntax. This change ensured that translation and package JSON files continued to load correctly without altering core functionality. Working primarily with JavaScript and TypeScript, Khanh demonstrated careful attention to code hygiene and risk mitigation, providing a single-commit solution that prevented potential runtime errors in modern Node.js environments while preserving existing behavior.