Vitest v5.0.1 — 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 v5.0.1. Source highlight:    🚀 Features

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Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

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📊 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)

Move trace attempts selector to viewer header  -  by @hi-ogawa, **Hiroshi Ogawa** and **Codex** in https://github.com/vitest-dev/vitest/issues/11189 <samp>(5dc4b)</samp>
Add focused trace view layout mode  -  by @hi-ogawa, **Hiroshi Ogawa**, **OpenCode (gpt-5.6-sol)** and **Codex** in https://github.com/vitest-dev/vitest/issues/11190 <samp>(376dc)</samp>

🔧 Bug Fixes & Patches (6)

Exit 1 when vitest list fails collection  -  by @hamed-bavar in https://github.com/vitest-dev/vitest/issues/11145 and https://github.com/vitest-dev/vitest/issues/11146 <samp>(6108b)</samp>
Keep parse error details in static collection  -  by @hamed-bavar in https://github.com/vitest-dev/vitest/issues/11150 and https://github.com/vitest-dev/vitest/issues/11151 <samp>(7c818)</samp>
Avoid recursive prototype in automocking  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11195 <samp>(99fc5)</samp>
Prevent false Vitest import resolution  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11196 <samp>(b426c)</samp>
Keep metadata file when clearing the cache  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11199 <samp>(73614)</samp>
Correct typos in error message and comments  -  by @shinji00222 and **Shinji** in https://github.com/vitest-dev/vitest/issues/11187 <samp>(115c3)</samp>

📄 View Raw Release Notes (Original Developer Log)

###    🚀 Features - **ui**: - Move trace attempts selector to viewer header  -  by @hi-ogawa, **Hiroshi Ogawa** and **Codex** in https://github.com/vitest-dev/vitest/issues/11189 [<samp>(5dc4b)</samp>](https://github.com/vitest-dev/vitest/commit/5dc4b5c92) - Add focused trace view layout mode  -  by @hi-ogawa, **Hiroshi Ogawa**, **OpenCode (gpt-5.6-sol)** and **Codex** in https://github.com/vitest-dev/vitest/issues/11190 [<samp>(376dc)</samp>](https://github.com/vitest-dev/vitest/commit/376dc3bc1) ###    🐞 Bug Fixes - Exit 1 when vitest list fails collection  -  by @hamed-bavar in https://github.com/vitest-dev/vitest/issues/11145 and https://github.com/vitest-dev/vitest/issues/11146 [<samp>(6108b)</samp>](https://github.com/vitest-dev/vitest/commit/6108b8197) - Keep parse error details in static collection  -  by @hamed-bavar in https://github.com/vitest-dev/vitest/issues/11150 and https://github.com/vitest-dev/vitest/issues/11151 [<samp>(7c818)</samp>](https://github.com/vitest-dev/vitest/commit/7c818153a) - Avoid recursive prototype in automocking  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11195 [<samp>(99fc5)</samp>](https://github.com/vitest-dev/vitest/commit/99fc52591) - Prevent false Vitest import resolution  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11196 [<samp>(b426c)</samp>](https://github.com/vitest-dev/vitest/commit/b426c1976) - Keep metadata file when clearing the cache  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11199 [<samp>(73614)</samp>](https://github.com/vitest-dev/vitest/commit/73614654a) - Correct typos in error message and comments  -  by @shinji00222 and **Shinji** in https://github.com/vitest-dev/vitest/issues/11187 [<samp>(115c3)</samp>](https://github.com/vitest-dev/vitest/commit/115c3f6d2) - Resolve ResolvedConfig exactOptionalPropertyTypes errors  -  by @LukeAbby in https://github.com/vitest-dev/vitest/issues/11175 [<samp>(498fb)</samp>](https://github.com/vitest-dev/vitest/commit/498fbe922) - Share the server on self-referencing `extends`  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11034 [<samp>(23dda)</samp>](https://github.com/vitest-dev/vitest/commit/23dda738c) - Warn when deprecated `deps.optimizer.web` is used  -  by @im10furry in https://github.com/vitest-dev/vitest/issues/11214 [<samp>(2ce29)</samp>](https://github.com/vitest-dev/vitest/commit/2ce29d5fa) - **browser**: - Avoid double quotes in `config.define`  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11198 [<samp>(972e2)</samp>](https://github.com/vitest-dev/vitest/commit/972e24bab) - **doctor**: - Measure vm pools for custom environments  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11212 [<samp>(91ab1)</samp>](https://github.com/vitest-dev/vitest/commit/91ab1588c) - **expect**: - Correct return value in `toMatchAriaSnapshot`  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/11208 [<samp>(c119b)</samp>](https://github.com/vitest-dev/vitest/commit/c119be016) - **fakeTimers**: - Force `queueMicrotask` and `nextTick` in `toNotFake`  -  by @kingmakeruix, **kingmakeruix**, **Hiroshi Ogawa**, **Codex** and @hi-ogawa in https://github.com/vitest-dev/vitest/issues/11261 [<samp>(a47d7)</samp>](https://github.com/vitest-dev/vitest/commit/a47d7908f) - **snapshot**: - Report obsolete keys next to skipped tests  -  by @hamed-bavar, **Hiroshi Ogawa** and **OpenCode (gpt-5.6-sol)** in https://github.com/vitest-dev/vitest/issues/11157 and https://github.com/vitest-dev/vitest/issues/11158 [<samp>(17e2b)</samp>](https://github.com/vitest-dev/vitest/commit/17e2b22dd) - **types**: - Make public declarations self-contained  -  by @ZoeySigel in https://github.com/vitest-dev/vitest/issues/11141 [<samp>(45546)</samp>](https://github.com/vitest-dev/vitest/commit/455466c16) - **ui**: - Fix collapse/expand suite with file name search  -  by @hi-ogawa, **Hiroshi Ogawa** and **Codex** in https://github.com/vitest-dev/vitest/issues/11260 [<samp>(0a712)</samp>](https://github.com/vitest-dev/vitest/commit/0a7122daa) - Fix explorer file summary count  -  by @hi-ogawa, **Hiroshi Ogawa**, **OpenCode (gpt-5.6-sol)** and **Codex** in https://github.com/vitest-dev/vitest/issues/11125 [<samp>(05982)</samp>](https://github.com/vitest-dev/vitest/commit/05982297d) - **utils**: - Fix `deepMerge` to handle prototype  -  by @hi-ogawa, **Hiroshi Ogawa** and **Codex** in https://github.com/vitest-dev/vitest/issues/11215 [<samp>(4944c)</samp>](https://github.com/vitest-dev/vitest/commit/4944cf498) #####     [View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v5.0.0...v5.0.1)

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