🚨 Breaking Changes

• Separate config resolution from the server creation  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10554 (1c0ec)

   🚀 Features

• Add toggable injectCjsGlobals option  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10709 (82671)
• Promote fsModuleCache to a top-level option  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10734 (78ed7)
• Support non-ascii characters in for/each title placeholders  -  by @k-yle in https://github.com/vitest-dev/vitest/issues/10773 (15e0a)
• benchmark: Add pluggable benchmark provider API  -  by @GuillaumeLagrange and @sheremet-va in https://github.com/vitest-dev/vitest/issues/10799 (86c70)

   🐞 Bug Fixes

• Disable server HMR before plugins read it in their config hook  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10731 (e060b)
• Close the pool before the Vite servers  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10725 (96fa6)
• Remove listeners in the typecheck worker's off  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10741 (d758b)
• Keep per-file isolation in vm pools when maxWorkers is 1  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10743 (83ab9)
• Node.js 20 deprecation warning for ci.yml  -  by @hirehamir in https://github.com/vitest-dev/vitest/issues/10759 (2127f)
• Prevent node builtins double prefix  -  by @malobre in https://github.com/vitest-dev/vitest/issues/10630 and https://github.com/vitest-dev/vitest/issues/10767 (22d35)
• Set non-zero exit code when teardown throws during close  -  by @zakcutner and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/10794 (22116)
• Don't race the typechecker spawn grace period on windows  -  by @xevrion in https://github.com/vitest-dev/vitest/issues/10814 (b19e5)
• browser:
  • Preserve pre-transform request defaults  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10748 (b6060)
  • Fix error stacktrace location off-by-one  -  by @hi-ogawa, Hiroshi Ogawa and OpenCode in https://github.com/vitest-dev/vitest/issues/10724 (62b8d)
  • Inlined awaited import should not trigger syntax error after transform  -  by @smeng9, Shaoyu Meng and Claude Opus 4.8 (1M context) in https://github.com/vitest-dev/vitest/issues/10784 (51acd)
  • Mock window.print to avoid hanging  -  by @aaravjaichand in https://github.com/vitest-dev/vitest/issues/7375 and https://github.com/vitest-dev/vitest/issues/10798 (66d95)
• pool:
  • Vm pools to respect cgroupsv2 memory limit  -  by @milas in https://github.com/vitest-dev/vitest/issues/10721 (3923c)

   🏎 Performance

• Serve warm modules to workers in one round-trip, enable the node compile cache  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10708 (b144a)
• Make the Node compile cache opt-in, persist worker caches on teardown  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10742 (941bc)
• Reuse compiled code across vm pool contexts and prewarm the module graph  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10744 (d8b04)
• Bundle vitest's own dependencies  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10685 (c0508)
• browser:
  • Open browser sessions adaptively instead of maxWorkers upfront  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10726 (6db8d)
  • Cut per-file round trips  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10730 (3feef)
  • Stop serving framework sourcemaps in headless runs  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10728 (6aefb)
  • Prewarm the browser while the Vite server starts  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10727 (c1767)
  • Pre-bundle the vitest runtime in optimizeDeps  -  by @sheremet-va in https://github.com/vitest-dev/vitest/issues/10713 (de631)
• coverage:
  • Speed up v8 report generation (bounded-memory merge + precompiled globs)  -  by @toxik, Claude Opus 4.8 (1M context) and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/10506 (b05e5)
  • Reduce RPC data and unnecessary serializations  -  by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/10781 (7e7e3)

    View changes on GitHub