# Vitest v0.34.5 — Release & Upgrade Intelligence
- **Product:** Vitest (https://vitest.dev)
- **Version:** v0.34.5
- **Released:** Sep 21, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/vitest/updates/v0.34.5/
## Executive Summary (TL;DR)
Vitest v0.34.5. Source highlight: 🚀 Features
## New Features
- Add `diff` option - by @fenghan34 and @sheremet-va in https://github.com/vitest-dev/vitest/issues/4063 (b50cf)
- Add `coverage['100']` to istanbul provider - by @marcelobotega in https://github.com/vitest-dev/vitest/issues/4109 (a7e09)
- Support `vi.waitFor` method - by @Dunqing and @sheremet-va in https://github.com/vitest-dev/vitest/issues/4113 (d79cb)
- Allow using unprocessed environment files - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/4098 (1aee1)
- Support `vi.waitUntil` method - by @Dunqing and @sheremet-va in https://github.com/vitest-dev/vitest/issues/4129 (e0ac9)
## Improvements
- Use lazy require in vm pool - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/4136 (21ba4)
## Bug Fixes
- Update HappyDOMOptions to be compatible with v12 - by @anthonyblond in https://github.com/vitest-dev/vitest/issues/4135 (e8797)
- Print value shape when .resolves and .rejects fails - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/4137 (e649d)
- Fix lint errors on onConsoleLog example - by @marcelobotega in https://github.com/vitest-dev/vitest/issues/4116 (ba1e7)
- Improve the error message when nothing is thrown when testing `toThrow` - by @Dunqing in https://github.com/vitest-dev/vitest/issues/3979 (725a0)
- Catch errors in happy-dom - by @capricorn86 in https://github.com/vitest-dev/vitest/issues/4140 (c21c0)
- Restore leading space in `testNamePattern` - by @segrey in https://github.com/vitest-dev/vitest/issues/4103 and https://github.com/vitest-dev/vitest/issues/4104 (3c305)