Vitest v1.1.2 — 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 v1.1.2. 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 internal flag from UI option in the config  -  by @sheremet-va <samp>(7b4a2)</samp>
Avoid safaridriver collision  -  by @mbland in https://github.com/vitest-dev/vitest/issues/4863 <samp>(345a2)</samp>
Resolved failure to find arbitrarily-named snapshot files when using `expect(...).toMatchFileSnapshot()` matcher.  -  by @zmullett, **Zac Mullett** and @sheremet-va in https://github.com/vitest-dev/vitest/issues/4839 <samp>(b8140)</samp>
Handle config.base  -  by @mbland and @sheremet-va in https://github.com/vitest-dev/vitest/issues/4686 and https://github.com/vitest-dev/vitest/issues/4692 <samp>(9e345)</samp>
Update dependency acorn-walk to ^8.3.1  -  by @renovate[bot] in https://github.com/vitest-dev/vitest/issues/4837 <samp>(47bc2)</samp>
Update dependency sirv to ^2.0.4  -  by @renovate[bot] in https://github.com/vitest-dev/vitest/issues/4838 <samp>(df261)</samp>

📄 View Raw Release Notes (Original Developer Log)

###    🐞 Bug Fixes - Remove internal flag from UI option in the config  -  by @sheremet-va [<samp>(7b4a2)</samp>](https://github.com/vitest-dev/vitest/commit/7b4a2fce) - **browser**: - Avoid safaridriver collision  -  by @mbland in https://github.com/vitest-dev/vitest/issues/4863 [<samp>(345a2)</samp>](https://github.com/vitest-dev/vitest/commit/345a25d6) - Resolved failure to find arbitrarily-named snapshot files when using `expect(...).toMatchFileSnapshot()` matcher.  -  by @zmullett, **Zac Mullett** and @sheremet-va in https://github.com/vitest-dev/vitest/issues/4839 [<samp>(b8140)</samp>](https://github.com/vitest-dev/vitest/commit/b8140fca) - Handle config.base  -  by @mbland and @sheremet-va in https://github.com/vitest-dev/vitest/issues/4686 and https://github.com/vitest-dev/vitest/issues/4692 [<samp>(9e345)</samp>](https://github.com/vitest-dev/vitest/commit/9e34557e) - **deps**: - Update dependency acorn-walk to ^8.3.1  -  by @renovate[bot] in https://github.com/vitest-dev/vitest/issues/4837 [<samp>(47bc2)</samp>](https://github.com/vitest-dev/vitest/commit/47bc233d) - Update dependency sirv to ^2.0.4  -  by @renovate[bot] in https://github.com/vitest-dev/vitest/issues/4838 [<samp>(df261)</samp>](https://github.com/vitest-dev/vitest/commit/df261ae1) - **runner**: - Fix fixture cleanup for concurrent tests  -  by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/4827 [<samp>(1fee6)</samp>](https://github.com/vitest-dev/vitest/commit/1fee63f2) - **spy**: - Don't allow `Promise` in `mockImplementation` if it's not in the function signature  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/4859 [<samp>(072e0)</samp>](https://github.com/vitest-dev/vitest/commit/072e02bf) - **vite-node**: - Correctly return cached result  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/4870 [<samp>(15bbb)</samp>](https://github.com/vitest-dev/vitest/commit/15bbbf81) - **vitest**: - Throw an error if mock was already loaded when `vi.mock` is called  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/4862 [<samp>(e12a5)</samp>](https://github.com/vitest-dev/vitest/commit/e12a5a36) - Correctly rerun test files on change if server was restarted  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/4871 [<samp>(6088b)</samp>](https://github.com/vitest-dev/vitest/commit/6088b372) - **vm-threads**: - Don't crash on percentage based `memoryLimit`  -  by @inottn and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/4802 [<samp>(70e8a)</samp>](https://github.com/vitest-dev/vitest/commit/70e8a389) #####     [View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v1.1.1...v1.1.2)

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