Vitest v0.9.4 — 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 v0.9.4. Source highlight: **deps:** update all non-major dependencies (#1159) (4d1e0a0)

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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)

**ui:** add the draft state * on code editor (#1131) (571b94b)
add satisfy alias (#1172) (7dbd837)

🔧 Bug Fixes & Patches (6)

**deps:** update all non-major dependencies (#1159) (4d1e0a0)
config.root priority (#1164) (d8e0493)
optimizeDeps.disabled (#1150) (b40fb60)
remove invalid xml characters in junit reporter output (fix #1144) (#1145) (ab8e2b8)
remove process.env edge case in defines (#1156) (0c9137d)
reset snapshot state between test reruns (#1162) (c2e98ef)

📄 View Raw Release Notes (Original Developer Log)

### Bug Fixes * **deps:** update all non-major dependencies ([#1159](https://github.com/vitest-dev/vitest/issues/1159)) ([4d1e0a0](https://github.com/vitest-dev/vitest/commit/4d1e0a0)) * config.root priority ([#1164](https://github.com/vitest-dev/vitest/issues/1164)) ([d8e0493](https://github.com/vitest-dev/vitest/commit/d8e0493)) * optimizeDeps.disabled ([#1150](https://github.com/vitest-dev/vitest/issues/1150)) ([b40fb60](https://github.com/vitest-dev/vitest/commit/b40fb60)) * remove invalid xml characters in junit reporter output (fix [#1144](https://github.com/vitest-dev/vitest/issues/1144)) ([#1145](https://github.com/vitest-dev/vitest/issues/1145)) ([ab8e2b8](https://github.com/vitest-dev/vitest/commit/ab8e2b8)) * remove process.env edge case in defines ([#1156](https://github.com/vitest-dev/vitest/issues/1156)) ([0c9137d](https://github.com/vitest-dev/vitest/commit/0c9137d)) * reset snapshot state between test reruns ([#1162](https://github.com/vitest-dev/vitest/issues/1162)) ([c2e98ef](https://github.com/vitest-dev/vitest/commit/c2e98ef)) * temporary revert [@sinonjs](https://github.com/sinonjs)/fake-timers ([f685b87](https://github.com/vitest-dev/vitest/commit/f685b87)) ### Features * **ui:** add the draft state * on code editor ([#1131](https://github.com/vitest-dev/vitest/issues/1131)) ([571b94b](https://github.com/vitest-dev/vitest/commit/571b94b)) * add satisfy alias ([#1172](https://github.com/vitest-dev/vitest/issues/1172)) ([7dbd837](https://github.com/vitest-dev/vitest/commit/7dbd837))

← Older Version Vitest v0.9.3 Newer Version → Vitest v0.10.0