Impact Score: 5/10
Vitest v0.21.0 โ Release Notes & Engineering Impact
Source available โ automated, not human-reviewed
Component: vitest ยท Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
โก Executive Summary (TL;DR)
Vitest v0.21.0. Source highlight: ๐ Features
Who Does This Impact? (Role-Based Analysis)
๐ป Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
๐ Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
โ๏ธ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
โจ New Features & Capabilities (4)
- Show stack trace for aggregated errors, show full stack trace -
- Allow timeout in test.each -
- Treat pseudo ESM as ESM with custom loader, disable custom Node Loader by default -
- Allow using todo/skip/concurrent with each -
๐ง Bug Fixes & Patches (4)
- Better bundling of types -
- ToHaveProperty should judge object own property -
- Plugins don't think it's watch mode -
- Gracefully handle unsettable keys during automocking -
๐ View Raw Release Notes (Original Developer Log)
### ๐ Features
- Show stack trace for aggregated errors, show full stack trace - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/1777
- Allow timeout in test.each - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/1787
- Treat pseudo ESM as ESM with custom loader, disable custom Node Loader by default - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/1778
- Allow using todo/skip/concurrent with each - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/1802
### ๐ Bug Fixes
- Better bundling of types - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/1785
- ToHaveProperty should judge object own property - by @ChpShy in https://github.com/vitest-dev/vitest/issues/1795
- Plugins don't think it's watch mode - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/1784
- Gracefully handle unsettable keys during automocking - by @simon-abbott in https://github.com/vitest-dev/vitest/issues/1786
##### [View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v0.20.3...v0.21.0)