# Vitest v4.0.14 — Release & Upgrade Intelligence
- **Product:** Vitest (https://vitest.dev)
- **Version:** v4.0.14
- **Released:** Nov 25, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/vitest/updates/v4.0.14/

## Executive Summary (TL;DR)
Vitest v4.0.14. Source highlight:    🚀 Experimental Features

## New Features
- **browser**: Expose `utils.configurePrettyDOM` &nbsp;-&nbsp; by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9103 <samp>(2cc34)</samp>
- **runner**: Add full names to tasks &nbsp;-&nbsp; by @macarie in https://github.com/vitest-dev/vitest/issues/9087 <samp>(821aa)</samp>
- **ui**: Add tabbed failure view for `toMatchScreenshot` with comparison slider &nbsp;-&nbsp; by @macarie in https://github.com/vitest-dev/vitest/issues/8813 <samp>(c37c2)</samp>

## Bug Fixes
- Externalize before caching &nbsp;-&nbsp; by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9077 <samp>(e1b2e)</samp>
- Collect the duration of external imports &nbsp;-&nbsp; by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9097 <samp>(3326c)</samp>
- Rename `collect` to `import`, remove `prepare` &nbsp;-&nbsp; by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9091 <samp>(1256b)</samp>
- Unsubscribe `onCancel` on rpc destroy &nbsp;-&nbsp; by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/9088 <samp>(f5b72)</samp>
- Revert the viewport scaling in non-ui mode #9018 &nbsp;-&nbsp; by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9072 and https://github.com/vitest-dev/vitest/issues/9018 <samp>(64502)</samp>
- Invalidate circular modules correctly on rerun with coverage &nbsp;-&nbsp; by @aicest in https://github.com/vitest-dev/vitest/issues/9096 <samp>(6f22c)</samp>