โ ๏ธ Breaking Change
Impact Score: 7/10
Vitest v0.22.0 โ Release Notes & Engineering Impact
Source available โ automated, not human-reviewed
Component: vitest ยท Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
Breaking-change evidence from the source
๐จ Breaking Changes - `c8` coverage support now require peer dependency `@vitest/coverage-c8` to be installed. Alternatively, you can install `@vitest/coverage-istanbul` to use `istanbul` for coverage instead of `c8`.
โก Executive Summary (TL;DR)
Vitest v0.22.0. Source highlight: ๐จ Breaking Changes
Who Does This Impact? (Role-Based Analysis)
๐ป Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
๐ Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
โ๏ธ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
โ ๏ธ Breaking Changes & Deprecations (1)
- ๐จ Breaking Changes - `c8` coverage support now require peer dependency `@vitest/coverage-c8` to be installed. Alternatively, you can install `@vitest/coverage-istanbul` to use `istanbul` for coverage instead of `c8`.
โจ New Features & Capabilities (4)
- Add --no-color to cli -
- Support auto retry on Node segfault `--segfault-retry` - by @tony19 @antfu in https://github.com/vitest-dev/vitest/issues/1854
- Support `istanbul` coverage provider - by @AriPerkkio and @antfu in https://github.com/vitest-dev/vitest/issues/1676
- **cli**: Support passing `--inspect` and `--inspect-brk` - by @antfu <samp>(ea80f)</samp>
๐ง Bug Fixes & Patches (3)
- Handle undefined returns of module mocks, and update migration docs - by @jereklas in https://github.com/vitest-dev/vitest/issues/1763 and https://github.com/vitest-dev/vitest/issues/1830
- Clear pattern when rerun all tests -
- **reporter-junit**: Remove trailing zeros in duration -
๐ View Raw Release Notes (Original Developer Log)
### ๐จ Breaking Changes
- `c8` coverage support now require peer dependency `@vitest/coverage-c8` to be installed. Alternatively, you can install `@vitest/coverage-istanbul` to use `istanbul` for coverage instead of `c8`.
### ๐ Features
- Add --no-color to cli - by @jereklas in https://github.com/vitest-dev/vitest/issues/1849
- Support auto retry on Node segfault `--segfault-retry` - by @tony19 @antfu in https://github.com/vitest-dev/vitest/issues/1854
- Support `istanbul` coverage provider - by @AriPerkkio and @antfu in https://github.com/vitest-dev/vitest/issues/1676
- **cli**: Support passing `--inspect` and `--inspect-brk` - by @antfu [<samp>(ea80f)</samp>](https://github.com/vitest-dev/vitest/commit/ea80f2bf)
### ๐ Bug Fixes
- Handle undefined returns of module mocks, and update migration docs - by @jereklas in https://github.com/vitest-dev/vitest/issues/1763 and https://github.com/vitest-dev/vitest/issues/1830
- Clear pattern when rerun all tests - by @ChpShy in https://github.com/vitest-dev/vitest/issues/1834
- **reporter-junit**: Remove trailing zeros in duration - by @nieyuyao in https://github.com/vitest-dev/vitest/issues/1842
##### [View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v0.21.1...v0.22.0)