🚀 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