Vitest v4.0.10 — 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

🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

Vitest v4.0.10. Source highlight:    🐞 Bug Fixes

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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.

🔧 Bug Fixes & Patches (6)

Remove `onCancel` when worker is terminated  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9033 <samp>(6d7f0)</samp>
Don't scale the iframe if UI is disabled  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9018 <samp>(5406e)</samp>
Handle dependency stack traces with external source maps. Resolves: #9003  -  by @iclectic in https://github.com/vitest-dev/vitest/issues/9016 and https://github.com/vitest-dev/vitest/issues/9003 <samp>(57ae5)</samp>
Parsing of stack trace for bun runtime  -  by @nazarhussain in https://github.com/vitest-dev/vitest/issues/9032 <samp>(f3ec6)</samp>
Prevent starting new run when cancelling  -  by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/8991 <samp>(eb98d)</samp>
Prevent writing to closed worker  -  by @AriPerkkio and @sheremet-va in https://github.com/vitest-dev/vitest/issues/9023 <samp>(042c6)</samp>

📄 View Raw Release Notes (Original Developer Log)

###    🐞 Bug Fixes - Remove `onCancel` when worker is terminated  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9033 [<samp>(6d7f0)</samp>](https://github.com/vitest-dev/vitest/commit/6d7f0a99e) - **browser**: - Don't scale the iframe if UI is disabled  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9018 [<samp>(5406e)</samp>](https://github.com/vitest-dev/vitest/commit/5406e8ea4) - Handle dependency stack traces with external source maps. Resolves: #9003  -  by @iclectic in https://github.com/vitest-dev/vitest/issues/9016 and https://github.com/vitest-dev/vitest/issues/9003 [<samp>(57ae5)</samp>](https://github.com/vitest-dev/vitest/commit/57ae547de) - **bun**: - Parsing of stack trace for bun runtime  -  by @nazarhussain in https://github.com/vitest-dev/vitest/issues/9032 [<samp>(f3ec6)</samp>](https://github.com/vitest-dev/vitest/commit/f3ec6fcb0) - **core**: - Prevent starting new run when cancelling  -  by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/8991 [<samp>(eb98d)</samp>](https://github.com/vitest-dev/vitest/commit/eb98dd8fd) - **pool**: - Prevent writing to closed worker  -  by @AriPerkkio and @sheremet-va in https://github.com/vitest-dev/vitest/issues/9023 [<samp>(042c6)</samp>](https://github.com/vitest-dev/vitest/commit/042c60c80) - **reporters**: - Report correct test run duration at the end  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/8969 [<samp>(bc3a6)</samp>](https://github.com/vitest-dev/vitest/commit/bc3a6921e) - **ui**: - Use execution time from ws reporter (`onFinished`)  -  by @userquin in https://github.com/vitest-dev/vitest/issues/8975 [<samp>(f56dc)</samp>](https://github.com/vitest-dev/vitest/commit/f56dc0cc4) #####     [View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v4.0.9...v4.0.10)

← Older Version Vitest v4.0.9 Newer Version → Vitest v4.0.11