Node.js 20+ and TypeScript 6.0 now let you write subpath imports with a bare "#/*" prefix. Rspack supports it too — so you can map "#/*" directly to ./dist/* (or ./src/*) Clean, familiar, and one step closer to the "@/" bundler experience 🦀 #Rspack #WebDev #JavaScript

Rspack / Rsbuild 2.0 stable is coming next week! One key improvement: we've trimmed npm deps across core packages to the bare minimum. This lowers supply chain risk and speeds up installs.

Setting up Rstest just got easier. Rstest docs now include a dedicated guide for coding agents to do it for you:

Just tried "rslint --type-check": 2s for type-aware linting + type checking on the Rsbuild monorepo 🚀

Rsbuild reached 1M weekly downloads. Thank you all ❤️

Lots of ecosystem and community updates, too: ⚡ @vite.dev 8 ▲ @nextjs.org 16.2 📝 @eslint.org 10 🅰️ @angular.dev 21 🦀 CLI init support for Rsbuild ⚡️ @preactjs.com support for Vitest addon 🤘 Community @vike.dev integration 🚀 Community @astro.build framework (experimental)

Here's what we reached for 👇 → Lit and web components for all interactivity → Custom server components for static templating → Rspack instead of Webpack → Declarative Shadow DOM for instant rendering → Baseline to decide which web APIs we can ship with confidence

Update: reduced @rspack/dev-server deps from 193 → 8, install size from 14.9 MB → 4.1 MB. npm supply chain attacks keep happening and keeping deps minimal makes me feel safer.

🆕 Introducing rspress-custom-theme skill 🎨 One prompt → a fully themed docs site + custom homepage ⚡ Generated in seconds, ready to use Try it out👇 ```bash npx skills add rstackjs/agent-skills --skill rspress-custom-theme ``` Learn more 🦀 🔗 github.com/rstackjs/age... 🔗 rspress.rs/guide/start/ai

AddFox: a new browser extension framework built on Rsbuild ⚡️ github.com/addfox/addfox

Some recent Rspack benchmark trends. Rspack 2.0 work is helping improve performance steadily⚡️

We’re getting close ⏳ Rspack 2.0 and Rsbuild 2.0 are landing next month. Beta is already out. give it a try and share your early feedback with us.

Rstack could offer a unified toolchain experience similar to Vite Plus as well, and huge respect to the Vite Plus team for exploring that direction. We haven’t pursued that path for now, mainly because we worry about a few tradeoffs:

New doc added: Rspack + AI 🤖: rspack.rs/guide/start/ai Learn how to use coding agents to set up and work with Rspack projects more efficiently.

Working on modernizing Rspack dev server. No longer tied to webpack-dev-server compatibility. Dependencies are updated and unnecessary ones removed. Early progress: 📉 Direct deps: 28 → 9 📉 Transitive deps: 193 → 76 📉 Install size: 14.9MB -> 9.9MB

Rspack just hit 4M weekly downloads. Vibe coding is helping dev tools grow faster. 🚀 0→1M: 750d 1→2M: 160d 2→3M: 140d 3→4M: 40d

Introducing Rstack Agent Skills: - rspack-best-practices - rspack-v2-upgrade - rspack-debugging - rsbuild-best-practices - rspress-v2-upgrade - rsdoctor-analysis - migrate-to-rsbuild - migrate-to-rstest - more... github.com/rstackjs/age...

Remotion is working on experimental Rspack support 👀 github.com/remotion-dev...

Great to see Tailwind CSS shipping an official @tailwindcss/webpack package 👏 It’s implemented as a webpack loader, which means it works in Rspack and Turbopack as well. Big shoutout to @timneutkens.bsky.social for making this happen 🙌

Chinese New Year is coming, so our team managed to get a few releases out 😂 Rspack 2.0 beta, Rsbuild 2.0 beta, Rspress 2.0, Module Federation 2.0 stable, Modern.js 3.0…

Smaller Module Federation bundles are here! Rspack 2.0 supports tree-shaking for shared code 🔥

Nice! Also remember to like @rspack.dev on @npmx.dev! 😊 I got the first like! Again thanks for your great work!

Rsbuild 2.0 beta cuts dependencies from 13 → 4, MF runtime is now an optional peer dependency ✨

One of my favorite features in Rspress 2.0. MDX React components are converted into markdown for llms.txt, giving agents cleaner, higher-signal context.

🚀 Rspress 2.0 just dropped! ✨ A brand-new, readability-first theme 🤖 AI-native: built-in `llms.txt` & SSG-MD generation ⚡ Instant dev startup with lazyCompilation and persistentCache 🎨 Shiki code highlighting with transformers Read more👉 rspress.rs/blog/rspress-v2

Rspack + RSC is now prototyped in the 2.0 alpha. We're continuing to iterate on stability and docs 🔧

Rstack Q1 roadmap 💡 • Rspack 2.0 beta • Rsbuild 2.0 beta • Rspress 2.0 stable • Rstack Skills • RSC support • Rstest browser mode • Faster persistent cache • ESLint compatibility in Rslint • Tree-shaking analysis in Rsdoctor

In Rsbuild 2.0.0-alpha.0, install size is 2.3 MB smaller by removing the CJS build and making core-js optional. We'll keep trimming it down ✂️

Rspack and Rsbuild core packages are now pure ESM. Already merged, will be released in v2 🌟

We just added @tailwindcss.com as an optional tool in create-rsbuild ❤️

Rstest → SWC core 🎉 2.3s →1.7s (35% faster than Jest)

Rspack 1.7 is out 🎉 The final minor release of the 1.x series, focused on stability and polish. Next stop. Rspack 2.0 in 2026 🦀 rspack.rs/blog/announc...

⏰ Rspack 1.7 is coming tomorrow. The last minor release before 2.0.

In the next release, Rsbuild's error overlay can now show runtime errors. When your app throws at runtime, the error appears instantly in the overlay, helping you locate problems sooner. Opt in using `dev.client.overlay.runtime = true`.

The SWC parser is now 65% faster than 6 months ago and 104% faster than a year ago🚀 Huge kudos to @kdy1.bsky.social and @c_punisher 👏

In the next release, Rspack adds support for the new Import Bytes proposal:

From a blog post by the Mews team: "Migrating from Webpack to Rspack completely transformed our frontend developer experience. Builds that once took five minutes now finish in under one, and hot reloads that used to take over ten seconds now feel instant."

JupyterLab switched to Rspack 🎉 5× build speedup on CI github.com/jupyterlab/j...

Rspack v1.6.7 is out: ✨ Support for import.meta.resolve ✨ Support for import.meta.dirname ✨ Support for import.meta.filename 📍 Relative source map paths 🛠️ 10 bug fixes

In the next release, Rsbuild adds a new "printFileSize.diff" option to show size changes between the current build and the previous one.

Storybook CLI now auto-detects Rsbuild projects and installs deps like storybook-react-rsbuild for you. Huge shoutout to the @storybook.js.org team!

In the next release, Rspack will generate a more compact module factory format that trims the wrapper function. Benchmarks show this reduces bundle size by about 1% before gzip, though the effect after gzip is minimal. 😉

Rspress v2 RC is live across all Rstack sites. 🎉 A few fixes are in progress. The final release will ship once everything is polished.

10 million monthly downloads. Huge thanks to everyone trusting Rspack. ❤️

Rspack has tons of complex tests. We just migrated from Jest to Rstest and saw about a 30% speed boost. ⚡️ If you’ve been thinking about trying Rstest, now might be a good time to give it a shot.

In the next release, Rspack's source map generation is 30% faster 🚀

create-rsbuild now automatically generates an AGENTS.md file to help coding agents develop better. 🤖 Still early, but we'll keep improving it and bring AGENTS.md to all Rstack scaffolds soon.

The next step is to kick off Rspack 2.0. 🦀 Some of its upcoming changes will be available early in Rspack 1.7 via feature flags.

Announcing Rspack & Rsbuild 1.6 🦀 🌿 Support for import defer 🌿 Enhanced tree shaking 🚀 Barrel optimization by default 🚀 Performance improvements 📦 Improved ESM output 📦 Forward browser logs rspack.rs/blog/announc...

Rspack 1.6 drops tomorrow 🚀