Impact Score: 5/10
Vitest v0.0.137 — 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.
⚡ Executive Summary (TL;DR)
Vitest v0.0.137. Source highlight: `mockClear` clears `instances` (#471) (eb107f3)
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.
⚡ Performance & Enhancements (1)
- cache externalization on main thread (79af776)
🔧 Bug Fixes & Patches (4)
- `mockClear` clears `instances` (#471) (eb107f3)
- guess cjs file by name containng module.js (ab8d7d3), closes #367
- jsdom supports Image (0c3f8e2), closes #419
- support mocking virtual modules (c927e2e), closes #464
📄 View Raw Release Notes (Original Developer Log)
### Bug Fixes
* `mockClear` clears `instances` ([#471](https://github.com/vitest-dev/vitest/issues/471)) ([eb107f3](https://github.com/vitest-dev/vitest/commit/eb107f3))
* guess cjs file by name containng module.js ([ab8d7d3](https://github.com/vitest-dev/vitest/commit/ab8d7d3)), closes [#367](https://github.com/vitest-dev/vitest/issues/367)
* jsdom supports Image ([0c3f8e2](https://github.com/vitest-dev/vitest/commit/0c3f8e2)), closes [#419](https://github.com/vitest-dev/vitest/issues/419)
* support mocking virtual modules ([c927e2e](https://github.com/vitest-dev/vitest/commit/c927e2e)), closes [#464](https://github.com/vitest-dev/vitest/issues/464)
### Performance Improvements
* cache externalization on main thread ([79af776](https://github.com/vitest-dev/vitest/commit/79af776))