https://www.infoq.com InfoQ Testing News feed https://www.infoq.com/news/2026/05/vitest-4-1-ai-agents/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=Testing-news <img src="https://res.infoq.com/news/2026/05/vitest-4-1-ai-agents/en/headerimage/generatedHeaderImage-1777557935260.jpg"/><p>Vitest 4.1, developed by VoidZero, enhances JavaScript testing with features like test tags for filtering and configuring tests, an experimental mode to bypass Vite's module runner, and new lifecycle hooks. It supports Vite 8 from the start. Notably, it reports improvements in performance compared to Jest. The release addresses issues and provides guides for migration.</p> <i>By Daniel Curtis</i> Node.js Test Automation Testing Web Development Development news Fri, 01 May 2026 09:03:00 GMT https://www.infoq.com/news/2026/05/vitest-4-1-ai-agents/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=Testing-news Daniel Curtis 2026-05-01T09:03:00Z /news/2026/05/vitest-4-1-ai-agents/en