Vitest 4.0.16 release notes, 16 Dec 2025

Fix browser mode default testTimeout back to 15 seconds - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9167 (da0ad)
Avoid crashing on process.versions stub - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/9174 (78cfb)
Reject calling suite function inside test - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9198 (1a259)
Allow inlining fully dynamic import - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9137 (56851)
Fix module graph UI on html reporter with headless browser mode - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9219 (60642)
Log deprecated test.poolOptions if it's set - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9226 (f7f6a)
browser:
- Import recordArtifact from the vitest package - by @macarie in https://github.com/vitest-dev/vitest/issues/9186 (01c56)
- Fix import.meta.env define - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9205 (01a9a)
- String formatting bug when including placeholders in console.log - by @michael-debs and @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9030 and https://github.com/vitest-dev/vitest/issues/9131 (84a30)
coverage:
- Istanbul untested files source maps are off - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/9208 (372e8)
experimental:
- Export setupEnvironment for custom pools - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/9187 (5d26b)