# Vitest v0.34.0 — Release & Upgrade Intelligence
- **Product:** Vitest (https://vitest.dev)
- **Version:** v0.34.0
- **Released:** Aug 01, 2023
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/vitest/updates/v0.34.0/
## Executive Summary (TL;DR)
Vitest v0.34.0. Source highlight: 🚨 Breaking Changes
## Breaking Changes & Deprecations
- 🚨 Breaking Changes - Transform mode affects only test files, not regular files - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/3491 [(9608b)](https://github.com/vitest-dev/vitest/commit/9608bf72)
## New Features
- Introduce `server` option - by @fenghan34 and @sheremet-va in https://github.com/vitest-dev/vitest/issues/3725 (dc4fa)
- Add preact example, remove optimizer experimental status, enable by default - by @sheremet-va and @eryue0220 in https://github.com/vitest-dev/vitest/issues/3854 (4b946)
- Support `describe.sequential` - by @fenghan34 and @dammy001 in https://github.com/vitest-dev/vitest/issues/3771 (86934)
- Support config junit reporter className with env - by @InfiniteXyy in https://github.com/vitest-dev/vitest/issues/3808 (e8bc4)
- Running vitest with `--related --watch` reruns non-affected tests if they were changed during a run - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/3844 (c9aea)
- This option was introduced to support aliasing inside external packages. Please, use `deps.optimizer.web` instead. If you test Node.js applications, consider adding external packages to `server.deps.inline`.
## Improvements
- Deprecate deps.registerNodeLoader - by @sheremet-va (7f45b)
## Bug Fixes
- Isolate workers between envs and workspaces - by @AriPerkkio (ed4e0)
- Modify condition - by @btea (a78e6)
- Module Graph view is blocking the Console view - by @g4rry420 (3b5f9)
- Port the latest `defineConfig` type from vite - by @sodatea in https://github.com/vitest-dev/vitest/issues/3804 (9c8e3)
- Don't overwrite Node.js URL global - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/3828 (cdab4)
- ForceRerunTriggers correctly triggers a rerun - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/3829 (17988)