Summary & Key Takeaways ​

• Vitest 5.0 is officially released, focusing on performance enhancements.
• It introduces many new features and addresses long-standing bugs.
• The release includes breaking changes, requiring Node.js 22 and Vite 6.4.
• Key changes involve replacing loupe.inspect with pretty-format and updating default attachment directories.
• expect package is now inlined, and deprecated entry points are removed.
• New toHaveTextContent is strict, with toMatchTextContent as an alternative.
• Browser testing features like screenshotDirectory config are added.

Our Commentary ​

A major Vitest release is always exciting for the testing community. Performance is paramount, so we're eager to see the real-world impact of these optimizations. The breaking changes are a bit of a hurdle, but requiring Node.js 22 and Vite 6.4 keeps the ecosystem moving forward. It's a solid update.