Vitest v0.34.3 — Release Notes & Engineering Impact

Source available — automated, not human-reviewed

Component: vitest · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes

📄 .MD

✨ Features 2 🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

Vitest v0.34.3. Source highlight:    🚀 Features

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Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

Check the source notes against the package and APIs you use before upgrading.

📊 Product & Engineering Leads

Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.

⚙️ DevOps & Security

Verify the target version, runtime requirements and rollback procedure in the official documentation.

✨ New Features & Capabilities (2)

**coverage**: Add `allowExternal` option  -  by @vojvodics and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/3894 <samp>(c03fa)</samp>
**vitest**: Export all reporters in `vitest/reporters`  -  by @Dunqing and @sheremet-va in https://github.com/vitest-dev/vitest/issues/3980 <samp>(5704b)</samp>

🔧 Bug Fixes & Patches (6)

Should remove mockPath from callstack whether success or failed  -  by @miserylee and **lijifei** in https://github.com/vitest-dev/vitest/issues/3971 <samp>(5eb85)</samp>
Add workspace config files to default coverage excludes  -  by @FelixGraf and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/3973 <samp>(20263)</samp>
Report file error as a <failure> on JUnit  -  by @3c1u in https://github.com/vitest-dev/vitest/issues/3997 <samp>(00c43)</samp>
**jsdom**: Correctly resolve buffer on typed arrays  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/3998 <samp>(b42cf)</samp>
**ui**: Use web hash history in ui  -  by @segevfiner and @sheremet-va in https://github.com/vitest-dev/vitest/issues/3481 and https://github.com/vitest-dev/vitest/issues/3487 <samp>(8caab)</samp>
**vite-node**: Inline HMR types  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/3993 <samp>(dff60)</samp>

📄 View Raw Release Notes (Original Developer Log)

###    🚀 Features - **coverage**: Add `allowExternal` option  -  by @vojvodics and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/3894 [<samp>(c03fa)</samp>](https://github.com/vitest-dev/vitest/commit/c03faa22) - **vitest**: Export all reporters in `vitest/reporters`  -  by @Dunqing and @sheremet-va in https://github.com/vitest-dev/vitest/issues/3980 [<samp>(5704b)</samp>](https://github.com/vitest-dev/vitest/commit/5704b341) ###    🐞 Bug Fixes - Should remove mockPath from callstack whether success or failed  -  by @miserylee and **lijifei** in https://github.com/vitest-dev/vitest/issues/3971 [<samp>(5eb85)</samp>](https://github.com/vitest-dev/vitest/commit/5eb8561c) - Add workspace config files to default coverage excludes  -  by @FelixGraf and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/3973 [<samp>(20263)</samp>](https://github.com/vitest-dev/vitest/commit/20263d9d) - Report file error as a <failure> on JUnit  -  by @3c1u in https://github.com/vitest-dev/vitest/issues/3997 [<samp>(00c43)</samp>](https://github.com/vitest-dev/vitest/commit/00c432fa) - **jsdom**: Correctly resolve buffer on typed arrays  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/3998 [<samp>(b42cf)</samp>](https://github.com/vitest-dev/vitest/commit/b42cf36e) - **ui**: Use web hash history in ui  -  by @segevfiner and @sheremet-va in https://github.com/vitest-dev/vitest/issues/3481 and https://github.com/vitest-dev/vitest/issues/3487 [<samp>(8caab)</samp>](https://github.com/vitest-dev/vitest/commit/8caabaa1) - **vite-node**: Inline HMR types  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/3993 [<samp>(dff60)</samp>](https://github.com/vitest-dev/vitest/commit/dff60e82) - **vitest**: Correctly resolve optimizer status  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/3992 [<samp>(74dc5)</samp>](https://github.com/vitest-dev/vitest/commit/74dc5967) #####     [View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v0.34.2...v0.34.3)

← Older Version Vitest v0.34.2 Newer Version → Vitest v0.34.4