v4.0.18

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🚀 Experimental Features

• experimental: Add onModuleRunner hook to worker.init - by @​sheremet-va in #​9286 (ea837)

🐞 Bug Fixes

• Use meta.url in createRequire - by @​sheremet-va in #​9441 (e0572)
• browser: Hide injected data-testid attributes - by @​sheremet-va in #​9503 (f8989)
• ui: Process artifact attachments when generating HTML reporter - by @​macarie in #​9472 (22543)

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v4.0.17

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🚀 Experimental Features

• Support openTelemetry for browser mode - by @​hi-ogawa in #​9180 (1ec3a)
• Support TRACEPARENT and TRACESTATE environment variables for OpenTelemetry context propagation - by @​Copilot, hi-ogawa and @​hi-ogawa in #​9295 (876cb)

🐞 Bug Fixes

• Improve asymmetric matcher diff readability by unwrapping container matchers - by @​Copilot, sheremet-va, hi-ogawa and @​hi-ogawa in #​9330 (b2ec7)
• Improve runner error when importing outside of test context - by @​sheremet-va in #​9335 (2dd3d)
• Replace crypto.randomUUID to allow insecure environments (fix #​9... - by @​plusgut in #​9339 and #​9 (e6a3f)
• Handle null options in addEventHandler #​9371 - by @​ThibautMarechal in #​9372 and #​9371 (40841)
• Typo in browser.provider error - by @​deammer in #​9394 (4b67f)
• browser:
  • Fix process.env and import.meta.env defines in inline project - by @​hi-ogawa in #​9239 (b70c9)
  • Fix upload File instance - by @​hi-ogawa in #​9294 (b6778)
  • Fix invalid project token for artifacts assets - by @​hi-ogawa in #​9321 (caa7d)
  • Log ErrorEvent.message when unhandled ErrorEvent.error is null - by @​hi-ogawa in #​9322 (5d84e)
  • Support fileParallelism on an instance - by @​sheremet-va in #​9328 (15006)
• coverage:
  • Remove unnecessary istanbul-lib-source-maps usage - by @​AriPerkkio in #​9344 (b0940)
  • Apply patch from istanbuljs/istanbuljs#837 - by @​AriPerkkio and sapphi-red in #​9413 and #​837 (e05ce)
• fsModuleCache:
  • Don't store importers in cache - by @​sheremet-va in #​9422 (75136)
  • Add importers alongside importedModules - by @​sheremet-va in #​9423 (59f92)
• mocker:
  • Fix mock transform with class - by @​hi-ogawa in #​9421 (d390e)
• pool:
  • Validate environment options when reusing the worker - by @​sheremet-va in #​9349 (a8a88)
  • Handle worker start failures gracefully - by @​AriPerkkio in #​9337 (200da)
• reporter:
  • Report test module if it failed to run - by @​sheremet-va in #​9272 (c7888)
• runner:
  • Respect nested test.only within describe.only - by @​Ujjwaljain16 in #​9021 and #​9213 (55d5d)
• typecheck:
  • Improve error message when tsc outputs help text - by @​Ujjwaljain16 in #​9214 (7b10a)
• ui:
  • Detect gzip by magic numbers instead of Content-Type header in html reporter - by @​Copilot, hi-ogawa and @​hi-ogawa in #​9278 (dd033)
• webdriverio:
  • Fall back to WebDriver Classic #​9244 - by @​JustasMonkev in #​9373 and #​9244 (c23dd)

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v4.0.16

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🐞 Bug Fixes

• Fix browser mode default testTimeout back to 15 seconds - by @​hi-ogawa in #​9167 (da0ad)
• Avoid crashing on process.versions stub - by @​AriPerkkio in #​9174 (78cfb)
• Reject calling suite function inside test - by @​hi-ogawa in #​9198 (1a259)
• Allow inlining fully dynamic import - by @​hi-ogawa in #​9137 (56851)
• Fix module graph UI on html reporter with headless browser mode - by @​hi-ogawa in #​9219 (60642)
• Log deprecated test.poolOptions if it's set - by @​sheremet-va in #​9226 (f7f6a)
• browser:
  • Import recordArtifact from the vitest package - by @​macarie in #​9186 (01c56)
  • Fix import.meta.env define - by @​hi-ogawa in #​9205 (01a9a)
  • String formatting bug when including placeholders in console.log - by @​michael-debs and @​hi-ogawa in #​9030 and #​9131 (84a30)
• coverage:
  • Istanbul untested files source maps are off - by @​AriPerkkio in #​9208 (372e8)
• experimental:
  • Export setupEnvironment for custom pools - by @​AriPerkkio in #​9187 (5d26b)

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v4.0.15

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🚀 Experimental Features

• cache: Add opt-out on a plugin level, fix internal root cache - by @​sheremet-va in #​9154 (a68f7)
• reporters: Print import duration breakdown - by @​sheremet-va in #​9105 (122ff)

🐞 Bug Fixes

• Keep built-in id as is in bun and deno - by @​sheremet-va in #​9117 (075ab)
• Use optimizeDeps.rolldownOptions to fix depreated warning + fix ssr.external: true - by @​hi-ogawa in #​9121 (fd8bd)
• Fix external behavior with deps.optimizer - by @​hi-ogawa in #​9125 (4c754)
• Very minor typo in "Chrome DevTools Protocol" - by @​HowToTestFrontend in #​9146 (20997)
• browser: Run toMatchScreenshot only once when used with expect.element - by @​macarie in #​9132 (0d2e7)
• coverage: Istanbul provider to not break source maps - by @​AriPerkkio in #​9040 (e4ca9)
• deps: Update dependency tinyexec to v1 - in #​9122 (fd786)
• docs: Remove --browser.provider from docs - by @​sheremet-va in #​9115 (120b3)
• expect: Preserve currentTestName in extended matchers - by @​macarie in #​9106 (e4345)
• pool: Terminate workers on CTRL+c forceful exits - by @​AriPerkkio in #​9140 (d57d8)
• reporters: Show project in github reporter - by @​sheremet-va in #​9138 (bb65e)
• spy: Do not mock overriden method, if parent was automocked - by @​sheremet-va in #​9116 (1a246)
• web-worker: MessagePort objects passed to Worker.postMessage work when clone === "native" - by @​whitphx in #​9118 (deee8)

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v4.0.14

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🚀 Experimental Features

• browser: Expose utils.configurePrettyDOM - by @​sheremet-va in #​9103 (2cc34)
• runner: Add full names to tasks - by @​macarie in #​9087 (821aa)
• ui: Add tabbed failure view for toMatchScreenshot with comparison slider - by @​macarie in #​8813 (c37c2)

🐞 Bug Fixes

• Externalize before caching - by @​sheremet-va in #​9077 (e1b2e)
• Collect the duration of external imports - by @​sheremet-va in #​9097 (3326c)
• Rename collect to import, remove prepare - by @​sheremet-va in #​9091 (1256b)
• browser:
  • Unsubscribe onCancel on rpc destroy - by @​AriPerkkio in #​9088 (f5b72)
  • Revert the viewport scaling in non-ui mode #​9018 - by @​sheremet-va in #​9072 and #​9018 (64502)
• coverage:
  • Invalidate circular modules correctly on rerun with coverage - by @​aicest in #​9096 (6f22c)
• expect:
  • Allow function as standard schema - by @​hi-ogawa in #​9099 (ed8a2)
• jsdom:
  • Reuse abort signals if possible - by @​sheremet-va in #​9090 (2c468)
• pool:
  • Init VITEST_POOL_ID + VITEST_WORKER_ID before environment setup - by @​AriPerkkio in #​9085 (37918)
• web-worker:
  • postMessage to send ports to workers - by @​whitphx and @​AriPerkkio in #​9078 (9d176)

🏎 Performance

• Replace debug with obug - by @​sxzz and @​AriPerkkio in #​9057 (acc51)

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v4.0.13

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🐞 Bug Fixes

• types:
  • Don't use type from Vite 7.1 - by @​sheremet-va in #​9071 (6356b)
  • Don't import node.js dependent types in vitest/browser - by @​sheremet-va in #​9068 (332af)

🏎 Performance

• Avoid fetchModule roundtrip if the module is cached - by @​sheremet-va in #​9075 (b27e0)
• experimental: If fsCacheModule is enabled, read from the memory when possible - by @​sheremet-va in #​9076 (6b9a1)

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v4.0.12

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🐞 Bug Fixes

• Inherit fsModuleCachePath by default - by @​sheremet-va in #​9063 (9a8bc)
• Don't import from @opentelemetry/api in public types - by @​sheremet-va in #​9066 (e944a)

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v4.0.11

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🚀 Experimental Features

• api: Add extensible test artifact API - by @​macarie in #​8987 (77292)
  • See more at https://vitest.dev/api/advanced/artifacts
• expect: Provide task in MatchState - by @​macarie in #​9022 (afd1f)
• experimental: Support OpenTelemetry traces - by @​sheremet-va in #​8994 (d6d33)
  • See more at https://vitest.dev/guide/open-telemetry

🏎 Performance

• experimental: Add file system cache - by @​sheremet-va in #​9026 (1b147)
  • See more at https://vitest.dev/config/experimental#experimental-fsmodulecache

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v4.0.10

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🐞 Bug Fixes

• Remove onCancel when worker is terminated - by @​sheremet-va in #​9033 (6d7f0)
• browser:
  • Don't scale the iframe if UI is disabled - by @​sheremet-va in #​9018 (5406e)
  • Handle dependency stack traces with external source maps. Resolves: #​9003 - by @​iclectic in #​9016 and #​9003 (57ae5)
• bun:
  • Parsing of stack trace for bun runtime - by @​nazarhussain in #​9032 (f3ec6)
• core:
  • Prevent starting new run when cancelling - by @​AriPerkkio in #​8991 (eb98d)
• pool:
  • Prevent writing to closed worker - by @​AriPerkkio and @​sheremet-va in #​9023 (042c6)
• reporters:
  • Report correct test run duration at the end - by @​sheremet-va in #​8969 (bc3a6)
• ui:
  • Use execution time from ws reporter (onFinished) - by @​userquin in #​8975 (f56dc)

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v4.0.9

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🚀 Experimental Features

• expect: Add Set support to toBeOneOf - by @​tim-we and @​sheremet-va in #​8906 (a415d)

🐞 Bug Fixes

• browser: Add favicon icons to the browser mode ui - by @​userquin in #​8972 (353ee)
• forks: Increase worker start timeout - by @​AriPerkkio in #​9027 (5e750)
• jsdom: Cloned request is an instance of Request - by @​sheremet-va in #​8985 (506a9)
• ui: Collect file/suite/test duration correctly - by @​userquin in #​8976 (8016d)

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v4.0.8

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🐞 Bug Fixes

• Workaround noExternal merging bug on Vite 6 - by @​hi-ogawa in #​8950 (bcb13)
• Missed context.d.ts file - by @​termorey in #​8965 (9044d)
• Incorrect error message for non-awaited expect.element() - by @​StyleShit in #​8954 (9638d)
• browser: Cleanup frame-ancestors from CSP header at coverage middleware - by @​userquin in #​8941 (1f730)
• deps: Update all non-major dependencies - by @​sheremet-va in #​8636 (da8b9)
• forks: Do not fail with Windows Defender enabled - by @​sheremet-va in #​8967 (c79f4)
• runner: Properly encode Uint8Array body in annotations - by @​Livan-pro in #​8951 (997ca)
• spy: Copy static properties if spy is initialised with vi.fn(), fix types for vi.spyOn(obj, class) - by @​sheremet-va in #​8956 (75e7f)
• webdriverio: When no argument is passed to the .click interaction command, the webdriver command should also have no argument - by @​julienw in #​8937 (069e6)

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v4.0.7

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🐞 Bug Fixes

• Bind process in case global is overwritten - by @​AriPerkkio in #​8916 (6240d)
• Create environment once per worker with isolate: false - by @​sheremet-va in #​8915 (c9078)
• Add Locator as a possible element type in toContainElement() matcher - by @​vitalybaev in #​8910 and #​8927 (35a27)
• browser: Inherit isolate option, deprecate browser.isolate/browser.fileParallelism - by @​sheremet-va in #​8890 (9d2b4)
• cli: Parse --execArgv as array - by @​AriPerkkio in #​8924 (751c3)
• jsdom: Support URL.createObjectURL, FormData.set(prop, blob) - by @​sheremet-va in #​8935 (a1b73)
• pool: Avoid --require argument when running in deno - by @​pi0 in #​8897 (d41fa)
• typecheck: Handle re-runs outside tsc - by @​AriPerkkio in #​8920 (fdb2e)

🏎 Performance

• pool:
  • Sort test files by project by default - by @​AriPerkkio in #​8914 (680a6)
• reporters:
  • Optimize getting the tests stats - by @​Connormiha in #​8908 (06d62)
  • Remove unnecessary Array.from call - by @​Connormiha in #​8907 (b6014)

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v4.0.6

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🐞 Bug Fixes

• Don't merge errors with different diffs for reporting - by @​hi-ogawa in #​8871 (3e19f)
• Do not throw when importing a type from an external package - by @​sheremet-va in #​8875 (7e6c3)
• Improve spying types - by @​sheremet-va in #​8878 (ca041)
• Reuse the same environment when isolate and fileParallelism are false - by @​sheremet-va in #​8889 (31706)
• browser:
  • Support module tracking - by @​sheremet-va in #​8877 (9e24a)
  • Ensure setup files are re-evaluated on each test run - by @​yjaaidi in #​8883 and #​8884 (f50ea)
• coverage:
  • Prevent filtering out virtual files before remapping to sources - by @​AriPerkkio in #​8860 (e3b77)
• happy-dom:
  • Properly teardown additional keys - by @​sheremet-va in #​8888 (10a06)
• jsdom:
  • Pass down Node.js FormData to Request - by @​sheremet-va in #​8880 (197ca)

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v4.0.5

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🐞 Bug Fixes

• Respect ssr.noExternal when externalizing dependencies - by @​sheremet-va in #​8862 (a4f86)
• Allow module in --config - by @​sheremet-va in #​8864 (b9521)
• browser: Allow Locator type in selectOptions element parameter - by @​rzzf and @​sheremet-va in #​8848 (7ee28)
• module-runner: Don't return node builtins for getBuiltins unconditionally - by @​sapphi-red in #​8863 (0e858)
• pool: Rename groupId to groupOrder in error message - by @​Yohannfra in #​8856 (b9aab)

🏎 Performance

• Pass testfiles at once when --no-isolate --maxWorkers=1 - by @​AriPerkkio in #​8835 (584aa)
• expect: Optimize checking the input type - by @​Connormiha in #​8840 (06968)

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v4.0.4

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🐞 Bug Fixes

• browser:
  • Correct typo - by @​benmccann in #​8796 (ede1f)
  • Publish a missing context file for webdriverio - by @​sheremet-va in #​8824 (7c7b6)
• mocker:
  • Support mocking builtins without node: prefix - by @​sheremet-va in #​8829 (06208)
• pool:
  • Runner's error listener causing MaxListenersExceededWarning - by @​AriPerkkio in #​8820 (d1bff)
  • Capture workers stdio to logger - by @​AriPerkkio in #​8809 (fb95f)
• spy:
  • Allow classes in vi.mocked utility - by @​sheremet-va in #​8839 (f8756)
• worker:
  • Rpc listener leak when isolate: false - by @​AriPerkkio in #​8821 (573dc)

🏎 Performance

• utils: Optimized reducer to avoid creating new objects - by @​Connormiha in #​8818 (d19ce)

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v4.0.3

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🐞 Bug Fixes

• Preserve reporter options from config when CLI reporters override them - by @​Copilot and sheremet-va in #​8794 (15552)
• browser: More stable in-source testing validation - by @​sheremet-va in #​8793 (62297)
• happy-dom: Support fetch globals - by @​sheremet-va in #​8791 (0fb74)
• init: Use correct jsx/tsx extension - by @​sheremet-va in #​8792 (abc04)

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v4.0.2

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🐞 Bug Fixes

• browser:
  • Don't print the deprecation notice in node_modules - by @​sheremet-va in #​8779 (588f7)
• pool:
  • Assign envs before running tests to keep in sync with process.env - by @​sheremet-va in #​8769 (26ce8)
• spy:
  • Properly inherit implementation's length - by @​sheremet-va in #​8778 (d4c2b)
  • Reset spies if both restoreMocks and mockReset is set in the config - by @​sheremet-va in #​8781 (2eedb)

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v4.0.1

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🐞 Bug Fixes

• Move the getBuiltins check - by @​sheremet-va in #​8765 (81000)
• pool: Don't teardown the communication channel too soon if something is running after the test - by @​sheremet-va in #​8767 (3fae7)

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v4.0.0

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🚨 Breaking Changes

• Remove 'basic' reporter - by @​AriPerkkio in #​7884 (82fcf)
• Simplify default exclude pattern - by @​sheremet-va in #​6287 (14c50)
• Remove deprecated getSourceMap - by @​sheremet-va in #​8194 (ff934)
• Replace deprecated ErrorWithDiff with TestError - by @​sheremet-va in #​8195 (da59e)
• Remove UserConfig type in favor of ViteUserConfig - by @​sheremet-va in #​8196 (22f7f)
• Remove deprecated coverage options in favor of vitest/node exports - by @​sheremet-va in #​8197 (dc848)
• Remove deprecated internal helpers and environment exports - by @​sheremet-va in #​8198 (4703c)
• Remove deprecated typecheck and runner types - by @​sheremet-va in #​8199 (89a1c)
• Remove Node types from the main entry point, use vitest/node instead - by @​sheremet-va in #​8200 (1e60c)
• Remove support for Vite 5 - by @​sheremet-va in #​8202 (cb8b0)
• Remove deprecated types - by @​sheremet-va in #​8203 (66bee)
• Remove deprecated environmentMatchGlobs and poolMatchGlobs - by @​sheremet-va in #​8205 (be11d)
• Remove deprecated workspace option in favor of projects - by @​sheremet-va in #​8218 (76fb7)
• Ignore --standalone when CLI filename filter is used - by @​AriPerkkio in #​8262 (013bf)
• Use module-runner instead of vite-node - by @​sheremet-va and @​AriPerkkio in #​8208 (9be01)
• Rewrite spying implementation to make module mocking more intuitive - by @​sheremet-va in #​8363 (9e412)
• Remove deprecated APIs - by @​sheremet-va in #​8428 (a1cb9)
• Remove minWorkers and set it automatically to 0 in non watch mode - by @​sheremet-va in #​8454 (2c2d1)
• Verbose reporter prints tests in a list, introduce tree reporter - by @​sheremet-va and @​AriPerkkio in #​8500 (25fd3)
• Include shadow root contents in pretty-format output - by @​wkillerud in #​8545 (9e722)
• Remove deprecated order from test() API - by @​sheremet-va in [#​8594](https://redirect.gith