v20.8.4

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v20.8.3

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👷‍♂️ Patch fixes

• Throw error if event is not of type Event in dispatchEvent - By @​capricorn86 in task #​2054

v20.8.2

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👷‍♂️ Patch fixes

• Resets Event.cancelBubble and Event.defaultPrevented when calling Event.initEvent() - By @​capricorn86 in task #​2090

v20.8.1

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👷‍♂️ Patch fixes

• Make "inert" attribute block focus interactions - By @​coffeeandwork in task #​1422

v20.8.0

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v20.7.2

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👷‍♂️ Patch fixes

• Properly decode CSS escape sequences in attribute selector values - By @​silverwind

v20.7.1

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v20.7.0

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🎨 Features

• Adds support for Window.getScreenDetails() - By @​TrevorBurnham in task #​1923
• Extends Screen from EventTarget - By @​TrevorBurnham in task #​1923

v20.6.5

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👷‍♂️ Patch fixes

• Add clearImmediate to Jest environment global scope - By @​TrevorBurnham in task #​1927

v20.6.4

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👷‍♂️ Patch fixes

• Normalize invalid input type attribute to "text" per HTML spec - By @​atzzCokeK in task #​2053

v20.6.3

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👷‍♂️ Patch fixes

• Refactors query selector parser to be able to handle complex rules - By @​capricorn86 in task #​1910
• Fixes issue related to using query selector for attribute in XML document - By @​capricorn86 in task #​1912
• Fixes issue with using quotes within quotes for attribute query selector (e.g. [data-value="it's a test"]) - By @​capricorn86 in task #​2034

v20.6.2

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👷‍♂️ Patch fixes

• Update entities package version to resolve missing export for vue and vue-compat v3.5 - By @​acollins1991 in task #​2066

v20.6.1

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v20.6.0

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v20.5.5

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v20.5.4

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👷‍♂️ Patch fixes

• Implement Text.wholeText property - By @​aki05162525 in task #​1959

v20.5.3

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v20.5.2

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v20.5.1

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v20.5.0

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v20.4.0

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🎨 Features

• Adds support for caching the compiled code of EcmaScript modules - By @​capricorn86 in task #​2049
• Improves the way nodes are destroyed and garbage collected - By @​capricorn86 in task #​2049

v20.3.9

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👷‍♂️ Patch fixes

• Accept Document nodes as valid boundary points in Selection API - By @​skoch13 in task #​1952

v20.3.8

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👷‍♂️ Patch fixes

• The getters for the properties focusNode and focusOffset in the Selection API returned incorrect values - By @​skoch13 in task #​1850

v20.3.7

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👷‍♂️ Patch fixes

• Updates README.md for the "@​happy-dom/server-renderer" package - By @​capricorn86 in task #​2035

v20.3.6

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👷‍♂️ Patch fixes

• Fixes issue where it wasn't possible to toggle the "open" attribute of <details> by clicking on a child of the <summary> element - By @​Nxooah in task #​1928

v20.3.5

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👷‍♂️ Patch fixes

• Use internal property for "location" in BrowserFrameURL to avoid mock interference - By @​marchaos in task #​1964
• Add optional chaining to the "hostname" and pathname" properties to check if they are undefined in CookieURLUtility - By @​marchaos in task #​1968

v20.3.4

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v20.3.3

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v20.3.2

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v20.3.1

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👷‍♂️ Patch fixes

• Normalizes the "format" parameter according to the HTML specification in DataTransfer.getData() - By @​marchaos in task #​1965
• Handle partial responses in XMLHttpRequest - By @​rexxars in task #​1890

v20.3.0

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🎨 Features

• Use RegExp to convert ASCII character casing to improve performance - By @​TrevorBurnham in task #​1886

v20.2.0

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🎨 Features

• Use Element.classList.contains() instead of splitting className in query selectors to improve performance as it's cached - By @​TrevorBurnham in task #​1884

v20.1.1

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👷‍♂️ Patch fixes

• Fixes caching in querySelector() - By @​TrevorBurnham in task #​1882
• Avoid sort in querySelector() to improve performance - By @​TrevorBurnham in task #​1882

v20.1.0

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🎨 Features

• Adds support for BrowserPage.evaluateModule() and BrowserFrame.evaluateModule() - By @​capricorn86 in task #​1944
• Adds support for module to the browser settings - By @​capricorn86 in task #​1944
  • This makes it possible to add a custom resolver or a node module resolver
• Adds support for dynamic import() to JavaScript evaluation - By @​capricorn86 in task #​1944
  • It was previously only supported when using type="module" on script elements
• Adds support for WebSocket - By @​capricorn86 in task #​1944
• Adds support for CloseEvent - By @​capricorn86 in task #​1944
• Adds support for render.setupScript and render.mode to the configuration in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944
• Changes name from urls to renderItems in the configuration in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944
• Adds support for rendering strings in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944
• Makes JavaScript evaluation disabled by default in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944

👷‍♂️ Patch fixes

• Several fixed to the EcmaScript module compiler (esm) - By @​capricorn86 in task #​1944
• Fixes issue where rendering using Worker's didn't work in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944

v4.1.0

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Vitest 4.1 is out!

This release page lists all changes made to the project during the 4.1 beta. To get a review of all the new features, read our blog post.

   🚀 Features

• Return a disposable from doMock()  -  by @​kirkwaiblinger in #​9332 (e3e65)
• Added chai style assertions  -  by @​ronnakamoto and @​sheremet-va in #​8842 (841df)
• Update to sinon/fake-timers v15 and add setTickMode to timer controls  -  by @​atscott and @​sheremet-va in #​8726 (4b480)
• Expose matcher types  -  by @​sheremet-va in #​9448 (3e4b9)
• Add toTestSpecification to reported tasks  -  by @​sheremet-va in #​9464 (1a470)
• Show a warning if vi.mock or vi.hoisted are declared outside of top level of the module  -  by @​sheremet-va in #​9387 (5db54)
• Track and display expectedly failed tests (.fails) in UI and CLI  -  by @​Copilot, sheremet-va and @​sheremet-va in #​9476 (77d75)
• Support tags  -  by @​sheremet-va in #​9478 (de7c8)
• Implement aroundEach and aroundAll hooks  -  by @​sheremet-va in #​9450 (2a8cb)
• Stabilize experimental features  -  by @​sheremet-va in #​9529 (b5fd2)
• Accept new or all in --update flag  -  by @​sheremet-va in #​9543 (a5acf)
• Support meta in test options  -  by @​sheremet-va in #​9535 (7d622)
• Support type inference with a new test.extend syntax  -  by @​sheremet-va in #​9550 (e5385)
• Support vite 8 beta, fix type issues in the config with different vite versions  -  by @​sheremet-va in #​9587 (99028)
• Add assertion helper to hide internal stack traces  -  by @​hi-ogawa and Claude Opus 4.6 in #​9594 (eeb0a)
• Store failure screenshots using artifacts API  -  by @​macarie in #​9588 (24603)
• Allow vitest list to statically collect tests instead of running files to collect them  -  by @​sheremet-va in #​9630 (7a8e7)
• Add --detect-async-leaks  -  by @​AriPerkkio in #​9528 (c594d)
• Implement mockThrow and mockThrowOnce  -  by @​thor-juhasz and @​sheremet-va in #​9512 (61917)
• Support update: "none" and add docs about snapshots behavior on CI  -  by @​hi-ogawa in #​9700 (05f18)
• Support playwright launchOptions with connectOptions  -  by @​hi-ogawa in #​9702 (f0ff1)
• Add page/locator.mark API to enhance playwright trace  -  by @​hi-ogawa in #​9652 (d0ee5)
• api:
  • Support tests starting or ending with test in experimental_parseSpecification  -  by @​jgillick and Jeremy Gillick in #​9235 (2f367)
  • Add filters to createSpecification  -  by @​sheremet-va in #​9336 (c8e6c)
  • Expose runTestFiles as alternative to runTestSpecifications  -  by @​sheremet-va in #​9443 (43d76)
  • Add allowWrite and allowExec options to api  -  by @​sheremet-va in #​9350 (20e00)
  • Allow passing down test cases to toTestSpecification  -  by @​sheremet-va in #​9627 (6f17d)
• browser:
  • Add userEvent.wheel API  -  by @​macarie in #​9188 (66080)
  • Add filterNode option to prettyDOM for filtering browser assertion error output  -  by @​Copilot, sheremet-va and @​sheremet-va in #​9475 (d3220)
  • Support playwright persistent context  -  by @​hi-ogawa, Claude Opus 4.6 and @​sheremet-va in #​9229 (f865d)
  • Added detailsPanelPosition option and button  -  by @​shairez in #​9525 (c8a31)
  • Use BlazeDiff instead of pixelmatch  -  by @​macarie in #​9514 (30936)
  • Add findElement and enable strict mode in webdriverio and preview  -  by @​sheremet-va in #​9677 (c3f37)
• cli:
  • Add @​bomb.sh/tab completions  -  by @​AmirSa12 and @​sheremet-va in #​8639 (200f3)
• coverage:
  • Support ignore start/stop ignore hints  -  by @​AriPerkkio in #​9204 (e59c9)
  • Add coverage.changed option to report only changed files  -  by @​kykim00 and @​AriPerkkio in #​9521 (1d939)
• experimental:
  • Add onModuleRunner hook to worker.init  -  by @​sheremet-va in #​9286 (e977f)
  • Option to disable the module runner  -  by @​sheremet-va and @​AriPerkkio in #​9210 (9be61)
  • Add importDurations: { limit, print } options  -  by @​hi-ogawa, Claude Opus 4.6 and @​sheremet-va in #​9401 (7e10f)
  • Add print and fail thresholds for importDurations  -  by @​hi-ogawa and Claude Opus 4.6 in #​9533 (3f7a5)
• fixtures:
  • Pass down file context to beforeAll/afterAll  -  by @​sheremet-va in #​9572 (c8339)
• reporters:
  • Add agent reporter to reduce ai agent token usage  -  by @​cpojer in #​9779 (3e9e0)
• runner:
  • Enhance retry options  -  by @​MazenSamehR, Matan Shavit, @​AriPerkkio and @​sheremet-va in #​9370 (9e4cf)
• ui:
  • Allow run individual test/suites  -  by @​userquin in #​9465 (73b10)
  • Add project filter/sort support  -  by @​userquin in #​8689 (0c7ea)
  • Add duration sorting to explorer  -  by @​julianhahn and @​cursoragent in #​9603 (209b1)
  • Implement filter for slow tests  -  by @​DerYeger and @​userquin in #​9705 (8880c)
• vitest:
  • Add run summary in GitHub Actions Reporter  -  by @​macarie and jhnance in #​9579 (96bfc)

   🐞 Bug Fixes

• Deprecate several vitest/* entry points  -  by @​sheremet-va in #​9347 (fd459)
• Use meta.url in createRequire  -  by @​sheremet-va in #​9441 (e3422)
• Preact browser mode init example of render function not async  -  by @​WuMingDao in #​9375 (2bea5)
• Deprecate unused types in matcher context  -  by @​sheremet-va in #​9449 (20f87)
• Handle external/noExternal during configEnvironment hook  -  by @​hi-ogawa and Claude Opus 4.6 in #​9508 (59ea2)
• Replace default ssr environment runner with Vitest server module runner  -  by @​hi-ogawa and Claude Opus 4.6 in #​9506 (cd5db)
• Propagate experimental CLI options to child projects  -  by @​hi-ogawa and Claude Opus 4.6 in #​9531 (b624f)
• Show a warning when browser.isolate is used  -  by @​sheremet-va in #​9410 (3d48e)
• Fix vi.mock({ spy: true }) node v8 coverage  -  by @​hi-ogawa, hi-ogawa and Claude Opus 4.6 in #​9541 (687b6)
• Don't show internal ssr handler in errors  -  by @​sheremet-va in #​9547 (76c43)
• Close vitest if it failed to start  -  by @​sheremet-va in #​9573 (728ba)
• Fix ssr environment runner in project  -  by @​hi-ogawa in #​9584 (09006)
• Trim trailing white spaces in code block  -  by @​hi-ogawa in #​9591 (f78be)
• Support inline snapshot inside test.for/each  -  by @​hi-ogawa in #​9590 (615fd)
• Apply source maps for external module stack trace  -  by @​hi-ogawa in #​9152 (79e20)
• Remove the .name from statically collected test  -  by @​sheremet-va in #​9596 (b66ff)
• Don't suppress warnings on pnp  -  by @​sheremet-va in #​9602 (89cbd)
• Support snapshot with expect.soft  -  by @​iumehara, @​hi-ogawa and Claude Opus 4.6 in #​9231 (3eb2c)
• Log seed when only sequence.shuffle.tests is enabled  -  by @​kaigritun, Kai Gritun and @​sheremet-va in #​9576 (8182b)
• Externalize expect/src/utils from vitest  -  by @​hi-ogawa in #​9616 (48739)
• Ignore test.override during static collection  -  by @​sheremet-va in #​9620 (09174)
• Increase stacktrace limit for --detect-async-leaks  -  by @​AriPerkkio in #​9638 (9fd4c)
• Hanging-reporter link in cli  -  by @​flx-sta in #​9649 (7c103)
• Fix teardown timeout of aroundEach/All when inner aroundEach/All throws  -  by @​hi-ogawa in #​9657 (4ec6c)
• Fix ui mode / html reporter and coverage integration  -  by @​hi-ogawa and Claude Opus 4.6 in #​9626 (86fad)
• Don't continue when aroundEach/All setup timed out  -  by @​hi-ogawa in #​9670 (bb013)
• Align VitestRunnerConfig optional fields with SerializedConfig  -  by @​hi-ogawa in #​9661 (79520)
• Handle Symbol values in format utility  -  by @​nami8824 in #​9658 (0583f)
• Deprecate toBe* spy assertions in favor of toHaveBeen* (and toThrowError)  -  by @​sheremet-va in #​9665 (4d390)
• Don't propagate nested aroundEach/All errors but aggregate them on runner  -  by @​hi-ogawa in #​9673 (b6365)
• Show a better error if there is a pending dynamic import  -  by @​sheremet-va in #​9676 (7ef5c)
• Preserve stack trace of resolves/rejects chained assertion error  -  by @​hi-ogawa in #​9679 (c6151)
• Handle module-sync condition in vmThreads/vmForks require  -  by @​lesleh in #​9650 and #​9651 (bb203)
• Hooks should respect maxConcurrency  -  by @​hi-ogawa in #​9653 (16d13)
• Recursively autospy module object  -  by @​hi-ogawa in #​9687 (695a8)
• Remove trailing spaces from diff error log  -  by @​hi-ogawa and @​sheremet-va in #​9680 (395d1)
• Respect project resolve.conditions for externals  -  by @​hi-ogawa in #​9717 (1d498)
• Use object for WeakMap instead of a symbol to support webcontainers  -  by @​sheremet-va in #​9731 (c5225)
• Fix re-mocking virtual module  -  by @​hi-ogawa in #​9748 (3cbbb)
• Cancelling should stop current test immediately  -  by @​AriPerkkio in #​9729 (0cb2f)
• Make mockObject change backwards compatible  -  by @​sheremet-va in #​9744 (84c69)
• Fix URL.name on jsdom  -  by @​hi-ogawa in #​9767 (031f3)
• Save and restore module graph in blob reporter  -  by @​hi-ogawa in #​9740 (84355)
• Don't silence reporter errors from test runtime events handler in normal run and --merge-reports  -  by @​hi-ogawa in #​9727 (4072d)
• Fix vi.importActual() for virtual modules  -  by @​hi-ogawa and Claude Opus 4.6 in #​9772 (1e89e)
• Throw FixtureAccessError if suite hook accesses undefined fixture  -  by @​sheremet-va in #​9786 (fc2ce)
• Allow hyphens in project config file name pattern  -  by @​Koutaro-Hanabusa and @​hi-ogawa in #​9760 (33e96)
• Manual and redirect mock shouldn't load or transform original module  -  by @​hi-ogawa and Claude Opus 4.6 in #​9774 (a8216)
• hideSkippedTests should not hide test.todo  -  by @​oilater in #​9562 and #​9781 (8181e)
• Allow catch/finally for async assertion  -  by @​hi-ogawa in #​9827 (031f0)
• Resolve fixture overrides from test's suite in beforeEach hooks  -  by @​hi-ogawa and Claude Opus 4.6 in #​9826 (99e52)
• Use isAgent check, not just TTY, for watch mode  -  by @​sheremet-va in #​9841 (c3cac)
• Use performance.now to measure test timeout duration  -  by @​hi-ogawa and Claude Opus 4.6 in #​9795 (f48a6)
• Correctly identify concurrent test during static analysis  -  by @​sheremet-va in #​9846 (1de0a)
• browser:
  • Avoid updating screenshots when toMatchScreenshot passes  -  by @​macarie in #​9289 (46aab)
  • Hide injected data-testid attributes  -  by @​sheremet-va in #​9503 (c8d2c)
  • Throw an error if iframe was reloaded  -  by @​sheremet-va in #​9516 (73a81)
  • Encode projectName in browser client URL  -  by @​dkkim0122 in #​9523 (5b164)
  • Don't take failure screenshot if tests have artifacts created by toMatchScreenshot  -  by @​macarie in #​9552 (83ca0)
  • Remove --remote-debugging-address from chrome args  -  by @​hi-ogawa and @​AriPerkkio in #​9712 (f09bb)
  • Make sure userEvent actions support ensureAwaited  -  by @​sheremet-va in #​9732 (97685)
  • Types of getCDPSession and cdp()  -  by @​AriPerkkio in #​9716 (689a2)
  • Skip esbuild.legalComments when using rolldown-vite  -  by @​Copilot, hi-ogawa and @​hi-ogawa in #​9803 (3505f)
• chai:
  • Don't allow deepEqual in the config because it's not serializable  -  by @​sheremet-va in #​9666 (9ee99)
• coverage:
  • Infer transform mode for uncovered files  -  by @​AriPerkkio in #​9435 (f3967)
  • thresholds.autoUpdate to preserve ending whitespace  -  by @​AriPerkkio in #​9436 (7e534)
• deps:
  • Update all non-major dependencies  -  by @​hi-ogawa in #​9192 (90c30)
  • Update all non-major dependencies  -  in #​9485 (c0118)
  • Update all non-major dependencies  -  in #​9567 (13c9e)
• docs:
  • Fix old /config/#option hash links causing hydration errors  -  by @​hi-ogawa, Claude Opus 4.6 and @​sheremet-va in #​9610 (a603c)
• expect:
  • toMatchObject(Map/Set) should expect Map/Set on left hand side  -  by @​hi-ogawa and Claude Opus 4.6 in #​9532 (381da)
  • Fix objectContaining with proxy  -  by @​hi-ogawa and Claude Opus 4.6 in #​9554 (7ce34)
  • Support arbitrary value equality for toThrow and make Error detection robust  -  by @​hi-ogawa and Claude Opus 4.6 in #​9570 (de215)
• mock:
  • Inject helpers after hashbang if present  -  by @​sheremet-va in #​9545 (65432)
• mocker:
  • Update vite's peer dependency range  -  by @​sheremet-va in #​9808 (36f9a)
• reporter:
  • dot reporter leaves pending tests  -  by @​AriPerkkio in #​9684 (4d793)
• runner:
  • Mark repeated tests as finished on last run  -  by @​AriPerkkio in #​9707 (cc735)
• spy:
  • Support deep partial in vi.mocked  -  by @​j2h30728 in #​8152 and #​9493 (71cb5)
  • Fallback to object accessor if descriptor's value is undefined  -  by @​sheremet-va in #​9511 [(6f181)](https://redirect