Summary & Key Takeaways ​

• Config resolution is now separated from server creation, introducing breaking changes.
• A new togglable injectCjsGlobals option has been added.
• fsModuleCache is promoted to a top-level configuration option.
• The benchmark system now features a pluggable provider API.
• Performance is improved by serving warm modules to workers and enabling a Node compile cache.
• The Node compile cache is now opt-in and worker caches persist on teardown.

Our Commentary ​

Vitest keeps pushing. A pluggable benchmark API in a testing framework is a really interesting direction; it feels like they're building a comprehensive dev tool, not just a test runner. And the performance gains from the Node compile cache? That's just good news for everyone. We're seeing a lot of focus on speed in the tooling space, and Vitest is clearly leading the charge here.