Vitest v0.15.0 — 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 5 🔧 Bug Fixes 4

⚡ Executive Summary (TL;DR)

Vitest v0.15.0. Source highlight:    🚀 Features

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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 (5)

Bind expect state to context `#1468`
Introduce `VITEST_POOL_ID` `#1473`
Add `maxConcurrency` option, `5` by default `#1483`
Add --shard command `#1477`
Add `css` config option, don't process CSS by default `#1467`

🔧 Bug Fixes & Patches (4)

Null inside test.each is not turned into an empty array `#1462`
Add @types/node to dependencies `#1474`
Parent is defined on global, closes `#1489`
Ensure event listener functions are bound correctly `#1487`

📄 View Raw Release Notes (Original Developer Log)

###    🚀 Features - Bind expect state to context [`#1468`](https://github.com/vitest-dev/vitest/issues/1468) - Introduce `VITEST_POOL_ID` [`#1473`](https://github.com/vitest-dev/vitest/issues/1473) - Add `maxConcurrency` option, `5` by default [`#1483`](https://github.com/vitest-dev/vitest/issues/1483) - Add --shard command [`#1477`](https://github.com/vitest-dev/vitest/issues/1477) - Add `css` config option, don't process CSS by default [`#1467`](https://github.com/vitest-dev/vitest/issues/1467) ###    🐞 Bug Fixes - Null inside test.each is not turned into an empty array [`#1462`](https://github.com/vitest-dev/vitest/issues/1462) - Add @types/node to dependencies [`#1474`](https://github.com/vitest-dev/vitest/issues/1474) - Parent is defined on global, closes [`#1489`](https://github.com/vitest-dev/vitest/issues/1489) - **web-worker**: - Ensure event listener functions are bound correctly [`#1487`](https://github.com/vitest-dev/vitest/issues/1487) #####     [View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v0.14.2...v0.15.0)

← Older Version Vitest v0.14.2 Newer Version → Vitest v0.15.1