🚨 Breaking Changes

• Add screenshotDirectory config to browser.expect.toMatchScreenshot  -  by @macarie in https://github.com/vitest-dev/vitest/issues/10592 (a60de)
• Update @sinonjs/fake-timers and support mocking Temporal  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (claude-opus-4-8) in https://github.com/vitest-dev/vitest/issues/10654 (f8b15)
• Remove webdriverio package  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10675 (5fed6)
• Clear mocks by default before each test  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10613 (0f646)
• Don't emit localStorage warnings on Node 26, fail gracefully when worker fails to start  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10293 (334ed)
• reporters:
  • Write json and junit reporter output files to .vitest by default  -  by @hi-ogawa, Hiroshi Ogawa, OpenCode (claude-opus-4-8) and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/10621 (58577)
• ui:
  • Harden UI API access  -  by @hi-ogawa, Hiroshi Ogawa and Codex in https://github.com/vitest-dev/vitest/issues/10583 (4c26d)
  • Change html reporter default output to .vitest  -  by @hi-ogawa and Hiroshi Ogawa in https://github.com/vitest-dev/vitest/issues/10620 (29c36)

   🚀 Features

• vitest: Create vi.when()  -  by @macarie in https://github.com/vitest-dev/vitest/issues/10174 (3900e)

   🐞 Bug Fixes

• Fix setImmediate await in detect-async-leak  -  by @hi-ogawa and Hiroshi Ogawa in https://github.com/vitest-dev/vitest/issues/10608 (dd62b)
• Fix per-project sequence config  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (claude-opus-4-8) in https://github.com/vitest-dev/vitest/issues/10659 (40cdc)
• Add handshake timeout to iframe communication  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10656 (3545f)
• Don't print column in test names when includeTaskLocation is enabled  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10681 (bd9cc)
• browser:
  • Always derive a positive locator action timeout  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10626 (5b864)
  • Resize the browser ui only if it's not headless  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10662 (b5c61)
  • Check fs access in builtin commands  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode (claude-opus-4-8) in https://github.com/vitest-dev/vitest/issues/10674 (33f96)
• coverage:
  • Non-awaited module imports cause wrong offsets  -  by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/10643 (c4090)
  • Fail fast when coverage.reportsDirectory conflicts between concurrent runs  -  by @jgamaraalv and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/10466 (833f0)
• pool:
  • Improve error message when worker exits unexpectedly  -  by @filmaj and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/10587 (76139)
• types:
  • Allow changed in configuration options  -  by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/10651 (0da12)
• vm:
  • Fix external module resolve error with deps optimizer query for encoded URI  -  by @SveLil in https://github.com/vitest-dev/vitest/issues/10658 (90c4e)

    View changes on GitHub