Summary & Key Takeaways ​

• Vitest v5.0.0-rc.4 introduces a breaking change by statically parsing files in vitest list by default.
• The clearCache functionality has been promoted out of experimental status.
• The UI now includes a direct link to open Playwright traces for easier debugging.
• Bug fixes address issues like oxc.target duplication and maxWorkers propagation.
• Browser-based testing now reports action errors when a task times out.
• A new suite-level report view has been added to the UI.
• Performance improvements include lazily formatting spy matcher failures.

Our Commentary ​

Another RC, another step closer to a stable major release. The static file parsing change sounds like it could be a subtle but impactful breaking change for some workflows. We appreciate the continued focus on performance and debugging tools, especially the Playwright trace link – that's a nice touch for DX.