vitest-dev/vitest v5.0.0

on GitHub

   🚨 Breaking Changes

• Replace loupe.inspect with pretty-format  -  by @hi-ogawa, Claude Opus 5 (1M context) and OpenAI Codex in #9609 (3f802)
• Remove quotes from string values in test.for/each title $ variable (take 2)  -  by @hi-ogawa in #10170 (04d37)
• 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 OpenAI 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)
• 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 OpenAI Codex in #10233 (4df04)
• Throw an error if hoistable methods are outside the top level scope  -  by @sheremet-va in #10460 (d0b4f)
• toHaveTextContent is strict, add toMatchTextContent as alternative  -  by @sheremet-va in #10473 (18f30)
• Don't lookup config file from ancestor directories  -  by @hi-ogawa, OpenAI Codex and Hiroshi Ogawa in #10428 (945d9)
• Inline @vitest/runner package, do not publish it anymore  -  by @sheremet-va in #10511 (6d6e4)
• Allow mutating happy-dom/jsdom window object  -  by @hi-ogawa, Hiroshi Ogawa and OpenAI Codex in #10373 (206e8)
• Expose concurrencyId/workerId on TestModule's diagnostics, make id 1-based  -  by @sheremet-va in #10516 (bdd98)
• Add screenshotDirectory config to browser.expect.toMatchScreenshot  -  by @macarie in #10592 (a60de)
• Update @sinonjs/fake-timers and support mocking Temporal  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10654 (f8b15)
• Remove webdriverio package  -  by @sheremet-va in #10675 (5fed6)
• Clear mocks by default before each test  -  by @sheremet-va in #10613 (0f646)
• Don't emit localStorage warnings on Node 26, fail gracefully when worker fails to start  -  by @sheremet-va in #10293 (334ed)
• Separate config resolution from the server creation  -  by @sheremet-va in #10554 (1c0ec)
• Inline projects extend the root config by default  -  by @sheremet-va in #10750 (fec00)
• Enable mocking Temporal without fake timers  -  by @fabon-f, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10757 (ac2d4)
• Support nested projects  -  by @sheremet-va in #10846 (ec367)
• Use > as separator in -t, calculate only once  -  by @sheremet-va in #10686 (a0b20)
• Fail the test when an asynchronous assertion is not awaited  -  by @sheremet-va in #10868 (86d4a)
• Share the Vite server between inline projects  -  by @sheremet-va in #10848 (d87c9)
• Parse files statically in vitest list by default  -  by @sheremet-va in #11088 (51e94)
• benchmark:
  • Rewrite the public API  -  by @sheremet-va in #10113 (19f6e)
• browser:
  • Iframe scale  -  by @macarie in #9745 (b6398)
  • Enable locators.exact by default  -  by @sheremet-va in #10430 (e2032)
  • Require sessionId for orchestrator html request  -  by @hi-ogawa, Hiroshi Ogawa and OpenAI Codex in #10522 (79b7d)
  • Save failure screenshots in attachmentsDir  -  by @macarie in #10917 (3b5bb)
• coverage:
  • include/exclude globs too eager  -  by @AriPerkkio in #9818 (edacb)
  • Allow thresholds.perFile to accept an object  -  by @vladlenskiy and @AriPerkkio in #10190 (13b78)
• expect:
  • Fix toThrow("") behavior by reverting #6710  -  by @hi-ogawa in #9643 and #6710 (6c3e4)
• 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)
  • Write json and junit reporter output files to .vitest by default  -  by @hi-ogawa, Hiroshi Ogawa, OpenCode (gpt-5.6-sol) and @AriPerkkio in #10621 (58577)
• spy:
  • Preserve class mock prototype methods on instances  -  by @sheremet-va in #10910 (6093d)
• types:
  • Add better promise support in expects and matchers  -  by @samchungy and @sheremet-va in #8266 (41f55)
• ui:
  • Harden UI API access  -  by @hi-ogawa, Hiroshi Ogawa and OpenAI Codex in #10583 (4c26d)
  • Change html reporter default output to .vitest  -  by @hi-ogawa and Hiroshi Ogawa in #10620 (29c36)

   🚀 Features

• Add createReport and .vitest report directory convention  -  by @AriPerkkio in #9993 (72a6d)
• Expose default reporters through configDefaults.reporters  -  by @hi-ogawa and Claude Opus 5 (1M context) in #10219 (083f6)
• Support merge reports for non-sharded multi-environment runs (take 2)  -  by @hi-ogawa, Claude Opus 5 (1M context), OpenAI Codex and @AriPerkkio in #10031 (e60b2)
• Add logger.formatError  -  by @hi-ogawa and OpenAI Codex in #10268 (2c5f3)
• Support typescript build mode  -  by @lishaduck in #9870 (106da)
• Add toggable injectCjsGlobals option  -  by @sheremet-va in #10709 (82671)
• Promote fsModuleCache to a top-level option  -  by @sheremet-va in #10734 (78ed7)
• Support non-ascii characters in for/each title placeholders  -  by @k-yle in #10773 (15e0a)
• Report the duration breakdown as percentages  -  by @sheremet-va and @AriPerkkio in #10820 (c67d2)
• Promote parseSpecifications out of experimental  -  by @sheremet-va in #11087 (b628c)
• Promote clearCache out of experimental  -  by @sheremet-va in #11086 (d4fe1)
• api:
  • Expose logs recorded during the test  -  by @sheremet-va in #10277 (cba20)
• benchmark:
  • Add pluggable benchmark provider API  -  by @GuillaumeLagrange and @sheremet-va in #10799 (86c70)
• browser:
  • Export aria tree utils  -  by @hi-ogawa in #10171 (c3423)
  • Support dom snapshot trace view  -  by @hi-ogawa, Claude Opus 5 (1M context) and OpenAI Codex in #10102 (7eddd)
  • Provide project reference in ToMatchScreenshotResolvePath  -  by @macarie and @sheremet-va in #10138 (16654)
  • Show aria tree on locator element error  -  by @hi-ogawa and OpenAI 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 OpenAI Codex in #10296 (78c11)
  • Add context.mark for custom command tracing  -  by @AriPerkkio in #10329 (aa514)
  • Show trace view steps in editor panel  -  by @hi-ogawa and OpenAI Codex in #10404 (8c4b6)
  • Display nested mark trace in UI  -  by @hi-ogawa, Hiroshi Ogawa and OpenAI Codex in #10437 (86ffc)
• cli:
  • Add --repeats CLI option  -  by @todor-a in #10504 (ee48b)
  • Support -p shorthand for --project  -  by @sheremet-va in #10826 (1addd)
• coverage:
  • V8 to track node:child_process and node:worker_threads contexts  -  by @AriPerkkio in #9976 (9baa5)
  • thresholds.autoUpdate to receive previous threshold as argument  -  by @wouterkroes in #10495 (04f81)
  • Switch to @vitest/istanbuljs packages  -  by @AriPerkkio in #11053 (5f6a5)
• junit-reporter:
  • Add jest-junit-compatible naming options  -  by @neumaennl, neumaennl, Martin Neumann and Copilot in #10189 (27393)
• reporter:
  • Support html reporter single file output  -  by @hi-ogawa, OpenAI Codex and Claude Opus 5 (1M context) in #10235 (f757e)
  • Add custom GitHub Actions summary title  -  by @heyJonBray and @macarie in #10891 (4363c)
• ui:
  • Highlight editor source locations  -  by @sheremet-va, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #11004 (bce2d)
  • Navigate trace steps with keyboard and remove indirect editor focus  -  by @sheremet-va, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #11005 (6816f)
  • Persist trace view selection in URL  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10981 (3069e)
  • Toggle trace target highlight  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #11049 (cd63e)
  • Add link to open playwright trace  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #11059 (58f02)
• vitest:
  • Create vi.when()  -  by @macarie in #10174 (3900e)
• vm:
  • Support require(esm) in vm pools  -  by @sheremet-va in #10829 (01298)

   🐞 Bug Fixes

• Global sequence.concurrent: true with top-level test(..., { concurrent: false }) + depreacte sequential test API and options  -  by @hi-ogawa, OpenAI 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 OpenAI Codex in #10216 (457db)
• Udpate optimize deps config  -  by @sheremet-va in #10223 (95dc6)
• 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 OpenAI Codex in #10334 (fab1b)
• Apply cjs interop for truthy __esModule  -  by @hi-ogawa in #10363 (2b135)
• Preserve vi.defineHelper callsite for async error stack  -  by @macayu17 and @hi-ogawa in #10415 (ac697)
• Respect disableConsoleIntercept in browser mode  -  by @Copilot, Hiroshi Ogawa, @hi-ogawa and OpenAI Codex in #10391 (66110)
• ForceRerunTriggers uses directory globs against files  -  by @Patrick-Clausen and Patrick Clausen in #10421 and #10420 (4fee2)
• Unify typechecking and ast collection  -  by @sheremet-va in #10449 (af993)
• Don't print typecheck warning more than once  -  by @sheremet-va in #10461 (15275)
• Correct collumn when parsing tests  -  by @sheremet-va in #10467 (7c2fc)
• Fix mixed stdout/stderr log timestamps in onUserConsoleLog  -  by @Copilot, Hiroshi Ogawa, @hi-ogawa and @sheremet-va in #10308 (62756)
• Fix importOriginal with optimizer and query import  -  by @davidxharris, David Harris, @hi-ogawa, Hiroshi Ogawa and OpenAI Codex in #10469 (6a3bb)
• Correct transform time calculation in merged report  -  by @potatomatoooo and @hi-ogawa in #10570 and #10578 (b7897)
• Fix setImmediate await in detect-async-leak  -  by @hi-ogawa and Hiroshi Ogawa in #10608 (dd62b)
• Fix per-project sequence config  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10659 (40cdc)
• Add handshake timeout to iframe communication  -  by @sheremet-va in #10656 (3545f)
• Don't print column in test names when includeTaskLocation is enabled  -  by @sheremet-va in #10681 (bd9cc)
• Disable server HMR before plugins read it in their config hook  -  by @sheremet-va in #10731 (e060b)
• Close the pool before the Vite servers  -  by @sheremet-va in #10725 (96fa6)
• Remove listeners in the typecheck worker's off  -  by @sheremet-va in #10741 (d758b)
• Keep per-file isolation in vm pools when maxWorkers is 1  -  by @sheremet-va in #10743 (83ab9)
• Node.js 20 deprecation warning for ci.yml  -  by @hirehamir in #10759 (2127f)
• Prevent node builtins double prefix  -  by @malobre in #10630 and #10767 (22d35)
• Set non-zero exit code when teardown throws during close  -  by @zakcutner and @AriPerkkio in #10794 (22116)
• Don't race the typechecker spawn grace period on windows  -  by @xevrion in #10814 (b19e5)
• Coalesce concurrent watch-mode restarts, deflake the pool stderr fixture  -  by @sheremet-va in #10822 (a31f8)
• Prevent vitest --typecheck from reporting a false success when the tsc process crashes  -  by @hitenkalda and Hiten Kalda in #10705 (a1b05)
• Collect in-source tests when the module is cached  -  by @koutaro-masaki in #10577 and #10589 (a7bf2)
• Swap replace() arguments so timeout error stack shows the real message  -  by @lazerg in #10875 (aba0f)
• Stale mock metadata breaks automocking with isolate:false  -  by @kade-robertson in #10145 and #10541 (8e210)
• Don't lose worker output on teardown, deflake timing-sensitive tests  -  by @sheremet-va in #10842 (1216b)
• Revive global concurrency limit for test lifecycle  -  by @hi-ogawa, Hiroshi Ogawa, OpenCode (gpt-5.6-sol) and @sheremet-va in #10928 (cf917)
• Own the post-restart rerun, keep process.exit disabled in workers  -  by @sheremet-va in #10963 (5e69a)
• Preserve correct root during resolve config  -  by @AriPerkkio and @sheremet-va in #10909 (210ba)
• Combine multiple --project filters correctly  -  by @sheremet-va in #10988 (66c1c)
• Fix recordArtifact location with vi.defineHelper  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #11047 (c2186)
• Invalidate resolved setup files  -  by @sheremet-va in #11073 and #11081 (488c0)
• Accept awaited value in vi.when thenResolve  -  by @sheremet-va in #11084 (c10a1)
• Ignore computed member calls in static collection  -  by @sheremet-va in #11085 (130f7)
• Don't duplicte oxc.target if user provides a custom array  -  by @sheremet-va in #11095 (848d7)
• Propagate --maxWorkers to projects  -  by @Gaurav1112 in #11102 (2122f)
• Apply queued mocks from doMock() in queue order  -  by @juliandescottes and Claude Opus 5 (1M context) in #10706 and #11127 (f08ce)
• Add a warning if inline project has duplicate plugins due to unexpected extends: true  -  by @sheremet-va in #11120 (584cf)
• Treat test.describe as a suite during static collection  -  by @sheremet-va in #11128 (d46a7)
• browser:
  • Fix trace highlight of shadow dom on webdriverio  -  by @hi-ogawa in #10227 (b01af)
  • 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)
  • Fix stale source map on watch mode  -  by @hi-ogawa in #10389 (6d772)
  • Escape inline orchestrator scripts  -  by @hi-ogawa and OpenAI Codex in #10412 (c22cf)
  • Disable client cdp API when allowWrite/allowExec: false  -  by @hi-ogawa and OpenAI Codex in #10444 (63e3b)
  • Wait for orchestrator readiness before resolving browser sessions  -  by @soconnor-seeq in #10397 (fe5ed)
  • Wait for iframe tester readiness before preparing  -  by @soconnor-seeq in #10497 (f2655)
  • Encode iframeId in tester iframe URL  -  by @Pduhard, Pduhard and Claude Opus 5 (1M context) in #10520 and #10521 (c8bf1)
  • Always derive a positive locator action timeout  -  by @sheremet-va in #10626 (5b864)
  • Resize the browser ui only if it's not headless  -  by @sheremet-va in #10662 (b5c61)
  • Check fs access in builtin commands  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10674 (33f96)
  • Preserve pre-transform request defaults  -  by @sheremet-va in #10748 (b6060)
  • Fix error stacktrace location off-by-one  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10724 (62b8d)
  • Inlined awaited import should not trigger syntax error after transform  -  by @smeng9, Shaoyu Meng and Claude Opus 5 (1M context) in #10784 (51acd)
  • Mock window.print to avoid hanging  -  by @aaravjaichand in #7375 and #10798 (66d95)
  • Ignore channel events in a tester opened as a top-level window  -  by @simshanith in #9379 and #9381 (46a3c)
  • Resolve connectTimeout from the project config  -  by @lazerg in #10879 and #10880 (62c79)
  • Prebundle vite module runner with vitest  -  by @lebovvskii and @sheremet-va in #10836 and #10856 (37c24)
  • Restore dependency reload warning  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10913 (90d69)
  • Configure internal optimizer dependencies  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10915 (a72f4)
  • Trigger playwright/chromium gc on lower disk availability  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10912 (032d3)
  • Disallow filter-only options in getBy* locators  -  by Arjun in #10295 and #10933 (9b4df)
  • Fail instead of hanging when the browser stops responding  -  by @sheremet-va in #10956 (c496c)
  • Exit gracefully when the browser disconnects during cancellation  -  by @sheremet-va in #10962 (67e84)
  • Don't redirect vitest in client environment  -  by @sheremet-va in #10975 (aeb67)
  • Don't hang when ui: true in projects  -  by @AriPerkkio in #10994 (9f710)
  • Preserve trace popover state  -  by @liuluochen6-af, Hiroshi Ogawa, OpenCode (gpt-5.6-sol) and @hi-ogawa in #10906 and #11021 (1bbc2)
  • Report the action error when a task times out  -  by @sheremet-va in #11101 (dc10f)
• cache:
  • Improve fsModuleCache resiliency during external modifications  -  by @jszumski in #10869 (5eb35)
• cli:
  • Respect FORCE_COLOR over agent detection  -  by @dokson in #10272 (7e66b)
  • Exit on CTRL+c even when globalSetup runs blocked code  -  by @AriPerkkio in #10863 (d568f)
• coverage:
  • exclude to not inherit negation globs from test.include  -  by @AriPerkkio in #10299 (28685)
  • Avoid matching sibling project roots  -  by @innoprej, Shin JaeHee and @AriPerkkio in #10311 (e30dd)
  • Non-awaited module imports cause wrong offsets  -  by @AriPerkkio in #10643 (c4090)
  • Fail fast when coverage.reportsDirectory conflicts between concurrent runs  -  by @jgamaraalv and @AriPerkkio in #10466 (833f0)
  • V8 to ignore Vite SSR's generated import bindings  -  by @AriPerkkio in #11023 (c6174)
  • Prevent crash on /@fs/ prepended virtual files  -  by @AriPerkkio in #11119 (c4473)
• deps:
  • Update ivya to fix empty aria tree snapshot  -  by @hi-ogawa in #10218 (f7822)
  • Update fake-timers to 15.3.2. support toNotFake  -  by @BPScott, @hi-ogawa and OpenAI Codex in #10043 (bbf2f)
  • Update all non-major dependencies  -  by @sheremet-va in #9958 (7faa7)
  • Update all non-major dependencies  -  by @sheremet-va in #10861 (0188c)
  • Update all non-major dependencies  -  by @sheremet-va in #10898 (61c4b)
  • Update all non-major dependencies  -  in #10966 (65263)
  • Update all non-major dependencies  -  in #11043 (732df)
• expect:
  • Allow readonly arrays and sets in toBeOneOf  -  by @YBJ0000 in #10264 and #10374 (fed11)
  • Handle nullish toHaveProperty values  -  by @liyimil in #10735 and #10811 (99e59)
• junit:
  • Include unhandled errors in JUnit XML report  -  by @gbleu and Claude Opus 5 (1M context) in #10244 (6f74e)
• mocker:
  • Skip hoist transform without ast mock calls  -  by @hi-ogawa and OpenAI Codex in #10410 (0468e)
  • Hoist vi.mock() for vite-plus/test imports  -  by @Brooooooklyn and Claude Opus 5 (1M context) in #10489 (88376)
  • Restrict redirect mocks to the fs allowlist  -  by @sheremet-va in #10972 (8ff9b)
• pool:
  • Prevent test run hang on worker crash  -  by @jaxalo and @AriPerkkio in #10543 (40878)
  • Improve error message when worker exits unexpectedly  -  by @filmaj and @AriPerkkio in #10587 (76139)
  • Vm pools to respect cgroupsv2 memory limit  -  by @milas in #10721 (3923c)
  • Worker init to handle queued synchronous messages  -  by @lazerg and @AriPerkkio in #10932 (76096)
  • Report the worker exit instead of a pipe error that raced it  -  by @sheremet-va in #10964 (59a03)
• reporter:
  • Guard against non-finite slowTestThreshold in summary reporter  -  by @OfekDanny, Ofek Danny, Claude Opus 5 (1M context) 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 OpenAI Codex in #10348 (745b3)
  • Print parent describe suites when the passed-test list is hidden  -  by @ChihebBENCHEIKH1, Chiheb Bencheikh and @sheremet-va in #10606 and #10768 (658af)
  • Display test.name in GitHub Actions reporter summary header  -  by @macarie in #10887 (49e24)
• runner:
  • Propagate chainable flags in describe.for  -  by @DoriAlagem, 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)
  • Remove AbortSignal listener leak in withCancel  -  by @tomohiro86 and @AriPerkkio in #10265 (ab098)
  • Don't fail collection when accessing error.stack throws  -  by @sheremet-va in #10839 (202e2)
• snapshot:
  • Fail test when snapshot assertion is used with test.fails  -  by @hi-ogawa in #10090 (e1aa7)
  • Treat empty string as valid snapshot  -  by @mayrang and @hi-ogawa in #10188 (e145d)
  • Support no-unsafe-eval CSP by evaluating snapshot files on server  -  by @hi-ogawa in #10665 (667c1)
  • Reject when toMatchFileSnapshot uses same snapshot file as toMatchSnapshot  -  by @hi-ogawa, Hiroshi Ogawa, OpenCode (gpt-5.6-sol) and @sheremet-va in #10978 (17646)
• spy:
  • Support private method spy types  -  by @cyphercodes in #10172 and #10213 (628ab)
  • Point ESM namespace spy error to module mocking docs  -  by @ryandiginomad and Ryan Tang in #10707 (d6cec)
• typecheck:
  • Report a checker crash on Windows instead of a spawn failure  -  by @sheremet-va in #10907 (77aac)
• types:
  • Allow changed in configuration options  -  by @AriPerkkio in #10651 (0da12)
• ui:
  • Fix duplicate colored error message  -  by @hi-ogawa and OpenAI 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 OpenAI Codex in #10338 (4f7c2)
  • Fix module graph in browser mode with --ui  -  by @hi-ogawa in #10386 (3003c)
  • Render ANSI color codes in editor panel inline error widget  -  by @Copilot, Hiroshi Ogawa and @hi-ogawa in #10418 (766b8)
  • Fix code editor error and annotations gadgets layout shifts  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10969 (438ed)
  • Synchronize watch-run UI state on file removal  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10941 (30c21)
  • Require auth for coverage report and all UI subtree requests  -  by @sheremet-va in #10971 (5622f)
  • Improve suite interaction and layout in explorer tree  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10970 (91231)
  • Reveal explorer virtual scroller on resize  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #10998 (1f4fc)
  • Persist trace step-iframe split pane sizes  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #11027 (3cd01)
  • Add suite level report view  -  by @dvmhmdsd, Hiroshi Ogawa, OpenCode (gpt-5.6-sol) and @hi-ogawa in #11038 (602d2)
  • Hide running count in static reports  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (gpt-5.6-sol) in #11123 (73d72)
• utils:
  • Don't crash on a malformed inline source map  -  by @lazerg, Hiroshi Ogawa, OpenCode (gpt-5.6-sol) and @hi-ogawa in #10892 and #10893 (fe790)
• vitest:
  • Strip non-serializable functions from inline diff config  -  by @DucMinhNe in #10573 (5b81a)
  • Remove broken "./src/*" export from package.json  -  by @sheremet-va in #10918 (2e5df)
  • Render non-Error causes from env setup so the actual diagnostic is not dropped  -  by @spokodev in #10567 (b298d)
• vm:
  • Fix external module resolve error with deps optimizer query for encoded URI  -  by @SveLil in #10658 (90c4e)
  • Stop retaining every finished test file in vm pool workers  -  by @sheremet-va in #10854 (38503)
  • Fall back to compiling from source when a module's code cache is rejected  -  by @MarshallOfSound in #11031 (c3ba1)
  • Link module graphs one at a time  -  by @sheremet-va in #11096 (3f2dd)
• webdriverio:
  • Allow gpu in headless chrome  -  by @rotempasharel1 in #10376 (f310a)
• worker:
  • Bind stdio's early in case overriden  -  by @AriPerkkio in #11020 (67ef7)

   🏎 Performance

• Stringify diff objects only once  -  by @sheremet-va in #10276 (d006a)
• Improve performance in hot paths  -  by @sheremet-va in #10446 (03faf)
• Serve warm modules to workers in one round-trip, enable the node compile cache  -  by @sheremet-va in #10708 (b144a)
• Make the Node compile cache opt-in, persist worker caches on teardown  -  by @sheremet-va in #10742 (941bc)
• Reuse compiled code across vm pool contexts and prewarm the module graph  -  by @sheremet-va in #10744 (d8b04)
• Bundle vitest's own dependencies  -  by @sheremet-va in #10685 (c0508)
• Lowers peak memory usage when using --changed on a large graph  -  by @jszumski in #10866 (9f23f)
• Initialize trace view in the orchestrator once per worker  -  by @sheremet-va in #10984 (fad26)
• browser:
  • Reduce matching screenshot overhead  -  by @kasperpeulen in #10278 (511c0)
  • Open browser sessions adaptively instead of maxWorkers upfront  -  by @sheremet-va in #10726 (6db8d)
  • Cut per-file round trips  -  by @sheremet-va in #10730 (3feef)
  • Stop serving framework sourcemaps in headless runs  -  by @sheremet-va in #10728 (6aefb)
  • Prewarm the browser while the Vite server starts  -  by @sheremet-va in #10727 (c1767)
  • Pre-bundle the vitest runtime in optimizeDeps  -  by @sheremet-va in #10713 (de631)
  • Serve framework assets as immutable  -  by @sheremet-va in #10729 (7af87)
• cache:
  • Hash the environment-invariant part of the fs module cache key once  -  by @MarshallOfSound in #11029 (1d365)
• coverage:
  • Speed up v8 report generation (bounded-memory merge + precompiled globs)  -  by @toxik, Claude Opus 5 (1M context) and @AriPerkkio in #10506 (b05e5)
  • Reduce RPC data and unnecessary serializations  -  by @AriPerkkio in #10781 (7e7e3)
• expect:
  • Avoid redefining matcher state  -  by @scttcper and OpenAI Codex in #11048 (58e71)
  • Lazily format spy matcher failures  -  by @scttcper and OpenAI Codex in #11090 (e08c4)
• spy:
  • Avoid scanning cleared mocks  -  by @scttcper and OpenAI Codex in #11092 (2451e)
• vm:
  • Don't prewarm modules the worker never requests  -  by @MarshallOfSound and @sheremet-va in #11033 (1e9f8)
  • Let environments opt out of the module graph prewarm  -  by @sheremet-va in #11078 (a6d5e)

    View changes on GitHub