This major is smaller in scope compared to Vite 3, with the main objective of upgrading to Rollup 3. We've worked with the ecosystem to ensure a smooth upgrade path for this new major.
Rollup 3
Vite is now using Rollup 3, which allowed us to simplify Vite's internal asset handling and has many improvements. See the Rollup 3 release notes here.
Framework Plugins out of the Vite core monorepo
@vitejs/plugin-vue and @vitejs/plugin-react have been part of Vite core monorepo since the first versions of Vite. This helped us to get a close feedback loop when making changes as we were getting both Core and the plugins tested and released together. With vite-ecosystem-ci we can get this feedback with these plugins developed on independent repositories, so from Vite 4, they have been moved out of the Vite core monorepo. This is meaningful for Vite's framework-agnostic story, and will allow us to build independent teams to maintain each of the plugins. If you have bugs to report or features to request, please create issues on the new repositories moving forward: vitejs/vite-plugin-vue and vitejs/vite-plugin-react.
New React plugin using SWC during development
SWC is now a mature replacement for Babel, especially in the context of React projects. SWC's React Fast Refresh implementation is a lot faster than Babel, and for some projects, it is now a better alternative. From Vite 4, two plugins are available for React projects with different tradeoffs. We believe that both approaches are worth supporting at this point, and we'll continue to explore improvements to both plugins in the future.
@vitejs/plugin-react
@vitejs/plugin-react is a plugin that uses esbuild and Babel, achieving fast HMR with a small package footprint and the flexibility of being able to use the babel transform pipeline.
@vitejs/plugin-react-swc (new)
@vitejs/plugin-react-swc is a new plugin that uses esbuild during build, but replaces Babel with SWC during development. For big projects that don't require non-standard React extensions, cold start and Hot Module Replacement (HMR) can be significantly faster.
Compatibility
The modern browser build now targets safari14 by default for wider ES2020 compatibility (vitejs/vite#9063). This means that modern builds can now use BigInt and that the nullish coallessing operator isn't transpiled anymore. If you need to support older browsers, you can add @vitejs/plugin-legacy as usual.
Importing CSS as a string
In Vite 3, importing the default export of a .css file could introduce a double loading of CSS.
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dependabot[bot]
commented
1 year ago
Bumps vite from 2.9.14 to 4.0.0.
Release notes
Sourced from vite's releases.
Changelog
Sourced from vite's changelog.
... (truncated)
Commits
566d4c7release: v4.0.002cdfa9chore: add\0to virtual files id (#11261)495c0bechore(deps): esbuild 0.16.3 (#11271)84d6ca2release: v4.0.0-beta.78d05daffix(resolve): revert ensure exports has precedence over mainFields (#11234) (...a9850berelease: v4.0.0-beta.6fe388dfchore(deps): rollup 3.7 (#11269)e1d8d46chore: update esbuild to 0.16.2 (#11265)feb8ce0fix(ssr): skip rewriting stack trace if it's already rewritten (fixes #11037)...9602686fix: skip shortcuts on non-tty stdin (#11263)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase.Dependabot commands and options
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