Vitest 2 to 3

🐞 Bug Fixes browser: Check fs access in builtin commands [backport to v3] - by @hi-ogawa, Hiroshi Ogawa and OpenCode (claude-opus-4-8) in https://github.com/vitest-dev/vitest/issues/10679 (b795e) View changes on GitHub

🐞 Bug Fixes Pin last supported vite-node version - by @sheremet-va (16f12) View changes on GitHub

🚀 Features api: Add allowWrite and allowExec options to api [backport to v3] - by @hi-ogawa and Codex in https://github.com/vitest-dev/vitest/issues/10445 (af88b) 🐞 Bug Fixes browser: Disable client cdp API when allowWrite/allowExec: fals

🐞 Bug Fixes Use correct path for optimisation of strip-literal - by @mrginglymus in https://github.com/vitest-dev/vitest/issues/8139 (44940) Print uint and buffer as a simple string - by @sheremet-va in https://github.com/vitest-dev/vitest

🚀 Features browser: Use base url instead of vitest - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/8126 (1d8eb) ui: Show test annotations and metadata in the test report tab - by @sheremet-va in https://github.com/vitest-d

🚀 Features Support rolldown-vite - by @sheremet-va and @hi-ogawa in https://github.com/vitest-dev/vitest/issues/7509 (c8d62) 🐞 Bug Fixes browser: Calculate prepare time from createTesters call on the main thread - by @sheremet-va in https

🐞 Bug Fixes Use sha1 instead of md5 for hashing - by @sheremet-va (e4c73) expect: Fix chai import in dts - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/8077 (a7593) Export DeeplyAllowMatchers - by @sheremet-va in https://git

🚀 Features Provide ctx.signal - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/7878 (e761f) Support custom colors for test.name - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/7809 (4af5d) Add vi.mockObject

🐞 Bug Fixes Apply browser CLI options only if the project has the browser set in the config already - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/8002 (64f2b) View changes on GitHub

🐞 Bug Fixes Correctly resolve vitest import if inline: true is set - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/7856 (a83f3) Fix fixture parsing with lowered async with esbuild 0.25.3 - by @hi-ogawa in https://github.co

🐞 Bug Fixes Add global chai variable in vitest/globals (fix: #7474) - by @Jay-Karia in https://github.com/vitest-dev/vitest/issues/7771 and https://github.com/vitest-dev/vitest/issues/7474 (d9297) Prevent modifying test.exclude when same o

🐞 Bug Fixes reporter: Report tests in correct order - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/7752 (b166e) Print test only once in the verbose mode - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/773

🚀 Features Introduce %$ option to add number of the test to its title - by @kemuridama in https://github.com/vitest-dev/vitest/issues/7412 (df347) Add diff.maxDepth option and set non-Infinity value as a default to reduce crash - by @hi-og

🐞 Bug Fixes Typings of ctx.skip() as never - by @sirlancelot in https://github.com/vitest-dev/vitest/issues/7608 (09f35) Cleanup vitest in public resolveConfig API - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/7623 (db14a)

🐞 Bug Fixes Fix fetch cache multiple writes - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/7546 (1a8b4) Use browser.isolate instead of config.isolate - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/7560 (4b5

🐞 Bug Fixes browser: Support webdriverio 9 - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/7553 (b1949) deps: Update all non-major dependencies - in https://github.com/vitest-dev/vitest/issues/7543 (365ff) expect: Correct

🐞 Bug Fixes Fix getMockedSystemTime for useFakeTimer - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/7405 (03912) Compat for jest-image-snapshot - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/7390 (9542b) Ensur

This release includes security patches for: Remote Code Execution when accessing a malicious website while Vitest API server is listening | CVE-2025-24964 🚀 Features ui: Insert message "no tests found" in ui - by @DevJoaoLopes in https://g

This release includes security patches for: Browser mode serves arbitrary files | CVE-2025-24963 🐞 Bug Fixes Filter projects eagerly during config resolution - by @sheremet-va and @AriPerkkio in https://github.com/vitest-dev/vitest/issues/

🐞 Bug Fixes browser: Don't throw a validation error if v8 coverage is used with filtered instances - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/7306 (fa463) Don't fail when running --browser.headless if the browser proj

🐞 Bug Fixes Don't await an empty timeout after every test - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/7281 (ef1aa) expect: Fix expect().resolves/rejects chain typings - by @hi-ogawa in https://github.com/vitest-dev/vit

🐞 Bug Fixes Revert "fix: re-apply default conditions if using vite 6 or later (https://github.com/vitest-dev/vitest/issues/7071)" - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/7071 and https://github.com/vitest-dev/vites

Vitest 3 is here! There are a few breaking changes, but we expect the migration to be smooth. This release page lists all changes made to the project during the beta. For the migration guide, please refer to the documentation. 🚨 Breaking C