# Vitest v4.1.11

- Product: Vitest (https://whatsnew.fyi/product/vitest)
- Vendor: VoidZero
- Date: 2026-08-18
- Version: v4.1.11
- Original notes: https://github.com/vitest-dev/vitest/releases/tag/v4.1.11
- Permalink: https://whatsnew.fyi/product/vitest/releases/v4.1.11

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Revive global concurrency limit for test lifecycle
- **fixed** — Encode iframeId in tester iframe URL
- **fixed** — Trigger playwright/chromium gc on lower disk availability
- **fixed** — Restrict redirect mocks to the fs allowlist

######    🐞 Bug Fixes

- Revive global concurrency limit for test lifecycle [backport to v4] &nbsp;-&nbsp; by @sheremet-va and @hi-ogawa in https://github.com/vitest-dev/vitest/issues/10992 [<samp>(5146d)</samp>](https://github.com/vitest-dev/vitest/commit/5146df80b)
- **browser**:
  - Encode iframeId in tester iframe URL [backport to v4] &nbsp;-&nbsp; by @sheremet-va, **Pduhard** and **Claude Opus 4.8** in https://github.com/vitest-dev/vitest/issues/10955 [<samp>(10b2c)</samp>](https://github.com/vitest-dev/vitest/commit/10b2cd201)
  - Trigger playwright/chromium gc on lower disk availability [backport to v4] &nbsp;-&nbsp; by @hi-ogawa, **Hiroshi Ogawa** and **OpenCode** in https://github.com/vitest-dev/vitest/issues/10951 [<samp>(9851d)</samp>](https://github.com/vitest-dev/vitest/commit/9851dbc41)
- **mocker**:
  - Restrict redirect mocks to the fs allowlist [backport to v4] &nbsp;-&nbsp; by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10974 [<samp>(fe5a1)</samp>](https://github.com/vitest-dev/vitest/commit/fe5a11d3c)

###### &nbsp;&nbsp;&nbsp;&nbsp;[View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v4.1.10...v4.1.11)