# Open-sourcing our progress on Tailwind CSS v4.0

DevFeed: [Open-sourcing our progress on Tailwind CSS v4.0](<https://devfeed.tech/articles/open-sourcing-our-progress-on-tailwind-css-v4-0-3502.md>)

Original publisher: [Read original article](<https://tailwindcss.com/blog/tailwindcss-v4-alpha>)

Published: 2024-03-06T16:30:00Z

Content type: release

Language: en

Sources: [Tailwind CSS Blog](<https://devfeed.tech/sources/tailwind-css-blog.md>)

Topics: [Tailwind CSS](<https://devfeed.tech/topics/tailwind.md>), [CSS](<https://devfeed.tech/topics/css.md>), [Rust](<https://devfeed.tech/topics/rust.md>), [TypeScript](<https://devfeed.tech/topics/typescript.md>), [Parsing](<https://devfeed.tech/topics/parsing.md>), [PostCSS](<https://devfeed.tech/topics/postcss.md>), [Web platform](<https://devfeed.tech/topics/web-platform.md>)

Tags: [build](<https://devfeed.tech/tags/build.md>), [compatibility](<https://devfeed.tech/tags/compatibility.md>), [css](<https://devfeed.tech/tags/css.md>), [developer-experience](<https://devfeed.tech/tags/developer-experience.md>), [experimental](<https://devfeed.tech/tags/experimental.md>), [features](<https://devfeed.tech/tags/features.md>), [framework](<https://devfeed.tech/tags/framework.md>), [open](<https://devfeed.tech/tags/open.md>), [parsing](<https://devfeed.tech/tags/parsing.md>), [performance](<https://devfeed.tech/tags/performance.md>), [pipeline](<https://devfeed.tech/tags/pipeline.md>), [plugins](<https://devfeed.tech/tags/plugins.md>), [release](<https://devfeed.tech/tags/release.md>), [rewrite](<https://devfeed.tech/tags/rewrite.md>), [rust](<https://devfeed.tech/tags/rust.md>), [syntax](<https://devfeed.tech/tags/syntax.md>), [tailwind](<https://devfeed.tech/tags/tailwind.md>), [typescript](<https://devfeed.tech/tags/typescript.md>), [web-platform](<https://devfeed.tech/tags/web-platform.md>)

## AI overview

Tailwind CSS announces the first public v4.0.0-alpha of its rewritten Oxide engine. The release focuses on faster builds, a smaller installed footprint, Rust-based performance improvements while retaining a TypeScript core, a custom parser, and integrated CSS processing through Lightning CSS.

## Source excerpt

We just tagged the first public v4.0.0-alpha so you can start experimenting with it and help us get to a stable release later this year.