Impact Score: 5/10
Vitest v1.3.0 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.
โก Executive Summary (TL;DR)
Vitest v1.3.0. Source highlight: Deprecate watchExclude - by @patak-dev in https://github.com/vitest-dev/vitest/issues/5171 <samp>(82885)</samp>
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.
โจ New Features & Capabilities (6)
- Deprecate watchExclude - by @patak-dev in https://github.com/vitest-dev/vitest/issues/5171 <samp>(82885)</samp>
- Run test files in isolated iframes - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5036 <samp>(4f401)</samp>
- Add `snapshotSerializers` option - by @fenghan34 in https://github.com/vitest-dev/vitest/issues/5092 <samp>(5b102)</samp>
- Support custom options - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/5111 <samp>(fec9c)</samp>
- Support automatic fixtures - by @fenghan34 and @sheremet-va in https://github.com/vitest-dev/vitest/issues/5102 <samp>(0441f)</samp>
- Save splitpanes size to local storage - by @posva in https://github.com/vitest-dev/vitest/issues/5166 <samp>(c28b4)</samp>
๐ง Bug Fixes & Patches (6)
- Fix sourcemap in vm pools - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5063 <samp>(81105)</samp>
- Don't optimize react/jsx-runtime by default when running in Node - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5079 <samp>(0d2bf)</samp>
- Rpc timeout error messages to include caller - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/5103 <samp>(a6e04)</samp>
- Requires fixed version across the monorepo - by @antfu in https://github.com/vitest-dev/vitest/issues/5208 <samp>(68f51)</samp>
- Prevent merging of `poolOptions` - by @penalosa in https://github.com/vitest-dev/vitest/issues/5221 <samp>(bc5b2)</samp>
- Don't exclude node builtins from optimization - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5082 <samp>(714c9)</samp>
๐ View Raw Release Notes (Original Developer Log)
### ๐ Features
- Deprecate watchExclude - by @patak-dev in https://github.com/vitest-dev/vitest/issues/5171 [<samp>(82885)</samp>](https://github.com/vitest-dev/vitest/commit/828858f8)
- **browser**:
- Run test files in isolated iframes - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5036 [<samp>(4f401)</samp>](https://github.com/vitest-dev/vitest/commit/4f40177e)
- **config**:
- Add `snapshotSerializers` option - by @fenghan34 in https://github.com/vitest-dev/vitest/issues/5092 [<samp>(5b102)</samp>](https://github.com/vitest-dev/vitest/commit/5b1021da)
- **reporters**:
- Support custom options - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/5111 [<samp>(fec9c)</samp>](https://github.com/vitest-dev/vitest/commit/fec9ca0b)
- **runner**:
- Support automatic fixtures - by @fenghan34 and @sheremet-va in https://github.com/vitest-dev/vitest/issues/5102 [<samp>(0441f)</samp>](https://github.com/vitest-dev/vitest/commit/0441f761)
- **ui**:
- Save splitpanes size to local storage - by @posva in https://github.com/vitest-dev/vitest/issues/5166 [<samp>(c28b4)</samp>](https://github.com/vitest-dev/vitest/commit/c28b4c26)
- **vitest**:
- Add onTestFinished hook - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5128 [<samp>(6f5b4)</samp>](https://github.com/vitest-dev/vitest/commit/6f5b42b7)
- Add github actions reporter - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5093 [<samp>(40afb)</samp>](https://github.com/vitest-dev/vitest/commit/40afbe3a)
- Expose jsdom global if jsdom environment is enabled - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5155 [<samp>(567d2)</samp>](https://github.com/vitest-dev/vitest/commit/567d20b9)
- Add new CLI options - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5163 [<samp>(4e179)</samp>](https://github.com/vitest-dev/vitest/commit/4e179426)
- "test" accepts options object as the second parameter - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5142 [<samp>(7d9b1)</samp>](https://github.com/vitest-dev/vitest/commit/7d9b1fb0)
- **vm**:
- Support wasm module - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5131 [<samp>(5ed53)</samp>](https://github.com/vitest-dev/vitest/commit/5ed537f0)
### ๐ Bug Fixes
- Fix sourcemap in vm pools - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5063 [<samp>(81105)</samp>](https://github.com/vitest-dev/vitest/commit/8110540a)
- Don't optimize react/jsx-runtime by default when running in Node - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5079 [<samp>(0d2bf)</samp>](https://github.com/vitest-dev/vitest/commit/0d2bfeac)
- Rpc timeout error messages to include caller - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/5103 [<samp>(a6e04)</samp>](https://github.com/vitest-dev/vitest/commit/a6e04bd8)
- Requires fixed version across the monorepo - by @antfu in https://github.com/vitest-dev/vitest/issues/5208 [<samp>(68f51)</samp>](https://github.com/vitest-dev/vitest/commit/68f51961)
- Prevent merging of `poolOptions` - by @penalosa in https://github.com/vitest-dev/vitest/issues/5221 [<samp>(bc5b2)</samp>](https://github.com/vitest-dev/vitest/commit/bc5b2d04)
- **browser**:
- Don't exclude node builtins from optimization - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5082 [<samp>(714c9)</samp>](https://github.com/vitest-dev/vitest/commit/714c911f)
- Support `coverage.reportsDirectory` with multiple directories - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/5056 [<samp>(ae73f)</samp>](https://github.com/vitest-dev/vitest/commit/ae73f273)
- **cli**:
- Parse `--browser=<name>` correctly - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/5179 [<samp>(656e2)</samp>](https://github.com/vitest-dev/vitest/commit/656e210b)
- **coverage**:
- `.tmp` directory conflicts with `--shard` option - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/5184 [<samp>(5749d)</samp>](https://github.com/vitest-dev/vitest/commit/5749d2c2)
- **deps**:
- Update dependency strip-literal to v2 - by @renovate[bot] in https://github.com/vitest-dev/vitest/issues/5136 [<samp>(ef557)</samp>](https://github.com/vitest-dev/vitest/commit/ef557243)
- **reporters**:
- Testsuite name should include project root in Junit output - by @fenghan34 in https://github.com/vitest-dev/vitest/issues/5116 [<samp>(2494f)</samp>](https://github.com/vitest-dev/vitest/commit/2494fbf2)
- **typecheck**:
- Fix suite collection while-loop - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5065 [<samp>(35675)</samp>](https://github.com/vitest-dev/vitest/commit/35675bd3)
- **ui**:
- Fix tests duration time - by @vovsemenv in https://github.com/vitest-dev/vitest/issues/5219 [<samp>(58103)</samp>](https://github.com/vitest-dev/vitest/commit/581030ee)
- **utils**:
- Fix asymmetric matcher diff inside array - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5189 [<samp>(3ffcd)</samp>](https://github.com/vitest-dev/vitest/commit/3ffcd2ea)
- **vitest**:
- Correctly report failed test files as failures in json reporter, export json reporter types - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5081 [<samp>(0417b)</samp>](https://github.com/vitest-dev/vitest/commit/0417ba20)
- Don't run typecheck tests in browser if both are enabled - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5080 [<samp>(1045b)</samp>](https://github.com/vitest-dev/vitest/commit/1045b98b)
- Handle function config inside `defineWorkspace` - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5089 [<samp>(0bf52)</samp>](https://github.com/vitest-dev/vitest/commit/0bf52533)
- Remove excessive listeners when running without isolation, don't reset the state - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5132 [<samp>(b607f)</samp>](https://github.com/vitest-dev/vitest/commit/b607f1ea)
- Auto-enable "github-actions" only where users didn't configure reporters - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5158 [<samp>(ef044)</samp>](https://github.com/vitest-dev/vitest/commit/ef0440cb)
- Support more array cli options - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5162 [<samp>(3afe6)</samp>](https://github.com/vitest-dev/vitest/commit/3afe68f1)
- Add types for the new global `jsdom` variable - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5164 [<samp>(0f898)</samp>](https://github.com/vitest-dev/vitest/commit/0f898d87)
- Expose onTestFinished globally - by @sheremet-va [<samp>(1304f)</samp>](https://github.com/vitest-dev/vitest/commit/1304fed7)
- Disable optimizer by default until it's stable - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/5156 [<samp>(e1bd8)</samp>](https://github.com/vitest-dev/vitest/commit/e1bd8d5d)
- Delegate snapshot options to workspace from root config - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5199 [<samp>(86297)</samp>](https://github.com/vitest-dev/vitest/commit/86297d42)
- Fix `optimizeDeps.disabled` warnings on Vite 5.1 - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5215 [<samp>(1aecd)</samp>](https://github.com/vitest-dev/vitest/commit/1aecd650)
- **vm**:
- Handle `disableConsoleIntercept` config - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5074 [<samp>(a55ad)</samp>](https://github.com/vitest-dev/vitest/commit/a55adac6)
- Improve error when module is not found - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/5053 [<samp>(79a50)</samp>](https://github.com/vitest-dev/vitest/commit/79a50c3f)
##### [View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v1.2.2...v1.3.0)