v5.0.0-beta.3

   🚨 Breaking Changes

• Require Node.js 22 and Vite 6.4  -  by @sheremet-va in #10178 (38762)
• Fail expect.poll when function didn't resolve in time  -  by @hi-ogawa and Codex in #10233 (4df04)

   🚀 Features

• Support typescript build mode  -  by @lishaduck in #9870 (106da)
• api:
  • Expose logs recorded during the test  -  by @sheremet-va in #10277 (cba20)
• browser:
  • Show aria tree on locator element error  -  by @hi-ogawa and Codex in #10257 (04f04)
  • Support custom kind in page.mark  -  by @AriPerkkio in #10302 (053e8)
  • Live update trace view on watch UI  -  by @hi-ogawa and Codex in #10296 (78c11)
  • Add context.mark for custom command tracing  -  by @AriPerkkio in #10329 (aa514)

   🐞 Bug Fixes

• Shell injection safety via github.ref_name in publish workflow  -  by @lloyd-c137 and lloyd-c137 in #10327 (dd020)
• Make attachmentsDir root only config  -  by @hi-ogawa and Codex in #10334 (fab1b)
• Apply cjs interop for truthy __esModule  -  by @hi-ogawa in #10363 (2b135)
• browser:
  • Simplify orchestrator otel carrier  -  by @hi-ogawa in #10283 (3514f)
  • Remove orphaned Playwright route when same module is mocked via multiple ids  -  by @Zelys-DFKH in #9957 and #10267 (41db6)
  • Skip wrapDynamicImport transform on ssr environment  -  by @hi-ogawa in #10355 (d3c96)
• cli:
  • Respect FORCE_COLOR over agent detection  -  by @dokson in #10272 (7e66b)
• coverage:
  • exclude to not inherit negation globs from test.include  -  by @AriPerkkio in #10299 (28685)
• deps:
  • Update fake-timers to 15.3.2. support toNotFake  -  by @BPScott, @hi-ogawa and Codex in #10043 (bbf2f)
• expect:
  • Allow readonly arrays and sets in toBeOneOf  -  by @YBJ0000 in #10264 and #10374 (fed11)
• junit:
  • Include unhandled errors in JUnit XML report  -  by @gbleu and Claude Sonnet 4.6 in #10244 (6f74e)
• reporter:
  • Guard against non-finite slowTestThreshold in summary reporter  -  by @OfekDanny, Ofek Danny, Claude Sonnet 4.6 and @AriPerkkio in #10202 (f362f)
  • Fix non-existing import subpath module blob serialization  -  by @hi-ogawa in #10318 (29cb0)
• reporters:
  • Fix blob file name with label  -  by @hi-ogawa in #10346 (c5e2e)
  • summary to intercept logger's streams even when they are not process.std* streams  -  by @AriPerkkio in #10340 (f79e7)
  • Fix missing testModules in onTestRunEnd when merging blobs from different root directory test runs  -  by @hi-ogawa and Codex in #10348 (745b3)
• runner:
  • Remove AbortSignal listener leak in withCancel  -  by @tomohiro86 and @AriPerkkio in #10265 (ab098)
• ui:
  • Fix duplicate colored error message  -  by @hi-ogawa and Codex in #10258 (035e3)
  • Fix missing source code in html reporter metadata when merging blobs with different root directory test runs  -  by @hi-ogawa and Codex in #10338 (4f7c2)

   🏎 Performance

• Stringify diff objects only once  -  by @sheremet-va in #10276 (d006a)
• browser: Reduce matching screenshot overhead  -  by @kasperpeulen in #10278 (511c0)

    View changes on GitHub

v4.1.7

   🐞 Bug Fixes

• runner: Limit concurrency per task branch in addition to per leaf callbacks (backport)  -  by @hi-ogawa in #10384 (4f0f2)

    View changes on GitHub

v4.1.6

   🐞 Bug Fixes

• browser: Provide project reference in ToMatchScreenshotResolvePath  -  by @macarie and @sheremet-va in #10138 (31882)
• Global sequence.concurrent: true with top-level test(..., { concurrent: false }) + depreacte sequential test API and options  -  by @hi-ogawa, Codex and @sheremet-va in #10196 (2847d)
• browser: Simplify orchestrator otel carrier  -  by @hi-ogawa in #10285 (18af9)

   🏎 Performance

• Stringify diff objects only once  -  by @sheremet-va in #10276 (9f7b1)

    View changes on GitHub

v5.0.0-beta.2

   🚨 Breaking Changes

• Default attachmentsDir from .vitest-attachements/ to .vitest/attachments/  -  by @MdSadiqMd in #10186 (1ba73)
• Remove sequential test/suite options in favor of concurrent  -  by @hi-ogawa and Codex in #10198 (9229f)
• Represent locator as an object instead of a string  -  by @sheremet-va in #10212 (80f07)
• Inline expect package  -  by @sheremet-va in #10221 (ad162)
• Remove deprecated entry points  -  by @sheremet-va in #10222 (994c6)
• mocker: Deserialize automock as automock  -  by @nami8824 in #10192 (2f892)
• reporters: blob reporter and --merge-reports default to .vitest/blob/  -  by @AriPerkkio in #10232 (d22b0)

   🚀 Features

• Expose default reporters through configDefaults.reporters  -  by @hi-ogawa and Claude Sonnet 4.6 in #10219 (083f6)
• Support merge reports for non-sharded multi-environment runs (take 2)  -  by @hi-ogawa, Claude Sonnet 4.6, Codex and @AriPerkkio in #10031 (e60b2)
• Add logger.formatError  -  by @hi-ogawa and Codex in #10268 (2c5f3)
• browser: Provide project reference in ToMatchScreenshotResolvePath  -  by @macarie and @sheremet-va in #10138 (16654)
• coverage: V8 to track node:child_process and node:worker_threads contexts  -  by @AriPerkkio in #9976 (9baa5)
• junit-reporter: Add jest-junit-compatible naming options  -  by @neumaennl, neumaennl, @neumann4soft and Copilot in #10189 (27393)

   🐞 Bug Fixes

• Global sequence.concurrent: true with top-level test(..., { concurrent: false }) + depreacte sequential test API and options  -  by @hi-ogawa, Codex and @sheremet-va in #10194 (9387f)
• Test tags options should overwrite inherited suite options + inherit suite options in task API  -  by @hi-ogawa and Codex in #10216 (457db)
• Udpate optimize deps config  -  by @sheremet-va in #10223 (95dc6)
• browser:
  • Fix trace highlight of shadow dom on webdriverio  -  by @hi-ogawa in #10227 (b01af)
• deps:
  • Update ivya to fix empty aria tree snapshot  -  by @hi-ogawa in #10218 (f7822)
• runner:
  • Propagate chainable flags in describe.for  -  by @DORI2001, Dor Alagem and @hi-ogawa in #10187 (db678)
  • Limit concurrency per task branch in addition to per leaf callbacks  -  by @hi-ogawa in #10179 (3112a)
• snapshot:
  • Treat empty string as valid snapshot  -  by @mayrang and @hi-ogawa in #10188 (e145d)
• spy:
  • Support private method spy types  -  by @cyphercodes in #10172 and #10213 (628ab)

    View changes on GitHub

v5.0.0-beta.1

   🚨 Breaking Changes

• Replace loupe.inspect with pretty-format  -  by @hi-ogawa, Claude Sonnet 4.6 and Codex in #9609 (3f802)
• Remove quotes from string values in test.for/each title $ variable (take 2)  -  by @hi-ogawa in #10170 (04d37)
• browser: Iframe scale  -  by @macarie in #9745 (b6398)
• coverage: include/exclude globs too eager  -  by @AriPerkkio in #9818 (edacb)
• expect: Fix toThrow("") behavior by reverting #6710  -  by @hi-ogawa in #9643 and #6710 (6c3e4)

   🚀 Features

• Add createReport and .vitest report directory convention  -  by @AriPerkkio in #9993 (72a6d)
• browser:
  • Export aria tree utils  -  by @hi-ogawa in #10171 (c3423)
  • Support dom snapshot trace view  -  by @hi-ogawa, Claude Sonnet 4.6 and Codex in #10102 (7eddd)

   🐞 Bug Fixes

• snapshot: Fail test when snapshot assertion is used with test.fails  -  by @hi-ogawa in #10090 (e1aa7)

    View changes on GitHub

v4.1.5

   🚀 Experimental Features

• coverage: Istanbul to support instrumenter option  -  by @BartWaardenburg and @AriPerkkio in #10119 (0e0ff)

   🐞 Bug Fixes

• --project negation excludes browser instances  -  by @felamaslen in #10131 (9423d)
• Project color label on html reporter  -  by @hi-ogawa in #10142 (596f7)
• Fix vi.defineHelper called as object method  -  by @hi-ogawa in #10163 (122c2)
• Alias agent reporter to minimal  -  by @sheremet-va in #10157 (663b9)
• Respect diff config options in soft assertions  -  by @Copilot, sheremet-va and @sheremet-va in #8696 (9787d)
• Respect diff config options in soft assertions "  -  by @sheremet-va in #8696 (7dc6d)
• ast-collect: Recognize _vi_import prefix in static test discovery  -  by @Yejneshwar in #10129 (32546)
• coverage: Descriptive error message when reports directory is removed during test run  -  by @DaveT1991 and @AriPerkkio in #10117 (14133)
• snapshot: Increase default snapshot max output length  -  by @hi-ogawa and Codex in #10150 (21e66)
• ui: Fix jsx/tsx syntax highlight  -  by @hi-ogawa in #10152 (f1b1f)
• web-worker: Support MessagePort objects referenced inside postMessage data  -  by @whitphx and Claude Opus 4.6 (1M context) in #9927 and #10124 (7ad7d)
• api: Make test-specification options writable  -  by @sheremet-va in #10154 (6abd5)

    View changes on GitHub

v4.1.4

   🚀 Experimental Features

• coverage:
  • Default to text reporter skipFull if agent detected  -  by @hi-ogawa in #10018 (53757)
• experimental:
  • Expose assertion as a public field  -  by @sheremet-va in #10095 (a120e)
  • Support aria snapshot  -  by @hi-ogawa, Claude Opus 4.6 (1M context), @AriPerkkio, Codex and @sheremet-va in #9668 (d4fbb)
• reporter:
  • Add filterMeta option to json reporter  -  by @nami8824 and @sheremet-va in #10078 (b77de)

   🐞 Bug Fixes

• Use "black" foreground for labeled terminal message to ensure contrast  -  by @hi-ogawa in #10076 (203f0)
• Make expect(..., message) consistent as error message prefix  -  by @hi-ogawa and Codex in #10068 (a1b5f)
• Do not hoist imports whose names match class properties .  -  by @SunsetFi in #10093 and #10094 (0fc4b)
• browser: Spread user server options into browser Vite server in project  -  by @GoldStrikeArch in #10049 (65c9d)

    View changes on GitHub

v4.1.3

   🚀 Experimental Features

• Add experimental.preParse flag  -  by @sheremet-va in #10070 (78273)
• Support browser.locators.exact option  -  by @sheremet-va in #10013 (48799)
• Add TestAttachment.bodyEncoding  -  by @hi-ogawa in #9969 (89ca0)
• Support custom snapshot matcher  -  by @hi-ogawa, Claude Sonnet 4.6 and Codex in #9973 (59b0e)

   🐞 Bug Fixes

• Advance fake timers with expect.poll interval  -  by @hi-ogawa and Claude Sonnet 4.6 in #10022 (3f5bf)
• Add @vitest/coverage-v8 and @vitest/coverage-istanbul as optional dependency  -  by @alan-agius4 in #10025 (146d4)
• Fix defineHelper for webkit async stack trace + update playwright 1.59.0  -  by @hi-ogawa in #10036 (5a5fa)
• Fix suite hook throwing errors for unused auto test-scoped fixture  -  by @hi-ogawa and Claude Sonnet 4.6 in #10035 (39865)
• expect:
  • Remove JestExtendError.context from verbose error reporting  -  by @hi-ogawa in #9983 (66751)
  • Don't leak "runner" types  -  by @sheremet-va in #10004 (ec204)
• snapshot:
  • Fix flagging obsolete snapshots for snapshot properties mismatch  -  by @hi-ogawa and Claude Sonnet 4.6 in #9986 (6b869)
  • Export custom snapshot matcher helper from vitest  -  by @hi-ogawa and Codex in #10042 (691d3)
• ui:
  • Don't leak vite types  -  by @sheremet-va in #10005 (fdff1)
• vm:
  • Fix external module resolve error with deps optimizer query  -  by @hi-ogawa and Claude Sonnet 4.6 in #10024 (9dbf4)

    View changes on GitHub

v4.1.2

This release bumps Vitest's flatted version and removes version pinning to resolve flatted's CVE related issues (#9975).

   🐞 Bug Fixes

• Don't resolve setupFiles from parent directory  -  by @hi-ogawa in #9960 (7aa93)
• Ensure sequential mock/unmock resolution  -  by @hi-ogawa and Claude Opus 4.6 in #9830 (7c065)
• browser: Take failure screenshot if toMatchScreenshot can't capture a stable screenshot  -  by @macarie in #9847 (faace)
• coverage: Correct coverageConfigDefaults values and types  -  by @Arthie in #9940 (b3c99)
• pretty-format: Fix output limit over counting  -  by @hi-ogawa in #9965 (d3b7a)
• Disable colors if agent is detected  -  by @sheremet-va and @AriPerkkio in #9851 (6f97b)

    View changes on GitHub

v4.1.1

   🚀 Features

• experimental:
  • Expose matchesTags to test if the current filter matches tags  -  by @sheremet-va in #9913 (eec53)
  • Introduce experimental.vcsProvider  -  by @sheremet-va in #9928 (56115)

   🐞 Bug Fixes

• Mark TestProject.testFilesList internal properly  -  by @sapphi-red in #9867 (54f26)
• Detect fixture that returns without calling use  -  by @oilater in #9831 and #9861 (633ae)
• Drop vite 8.beta support  -  by @AriPerkkio in #9862 (b78f5)
• Type regression in vi.mocked() static class methods  -  by @purepear and @hi-ogawa in #9857 (90926)
• Properly re-evaluate actual modules of mocked external  -  by @hi-ogawa in #9898 (ae5ec)
• Preserve coverage report when html reporter overlaps  -  by @hi-ogawa in #9889 (2d81a)
• Provide vi.advanceTimers to the preview provider  -  by @sheremet-va in #9891 (1bc3e)
• Don't leak event listener in playwright provider  -  by @sheremet-va in #9910 (d9355)
• Open browser in --standalone mode without running tests  -  by @sheremet-va in #9911 (e78ad)
• Guard disposable and optional body  -  by @sheremet-va in #9912 (6fdb2)
• Resolve retry.condition RegExp serialization issue  -  by @nstepien and @hi-ogawa in #9942 (7b605)
• collect:
  • Don't treat extra props on test return as tests  -  by @sheremet-va in #9871 (141e7)
• coverage:
  • Simplify provider types  -  by @AriPerkkio in #9931 (aaf9f)
  • Load built-in provider without module runner  -  by @AriPerkkio in #9939 (bf892)
• expect:
  • Soft assertions continue after .resolves/.rejects promise errors  -  by @mixelburg, Maks Pikov, Claude Opus 4.6 (1M context) and @hi-ogawa in #9843 (6d74b)
  • Fix sinon-chai style API  -  by @hi-ogawa in #9943 (0f08d)
• pretty-format:
  • Limit output for large object  -  by @hi-ogawa and Claude Opus 4.6 (1M context) in #9949 (0d5f9)

    View changes on GitHub