More speed from SWC: Lexer: 4–11% faster, Parser: 2-3% faster

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.

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 🚀

🧩 The Rspack roadmap has been updated — It now includes Rspack 2.0 and our current areas of focus. rspack.rs/misc/plannin...

🚀 Rspack 2.0 roadmap: 🗓️ First preview planned for Feb 2026 🧩 Refined webpack outputs & APIs — cleaner and simpler 📦 Better ESM output, with out-of-the-box support via Rsbuild & Rslib ⚛️ Built-in RSC support (thanks @parceljs's exploration ) 💾 More stable persistent cache, aiming for default in dev

Rspack 1.6.0-beta.1 just dropped: 🧩 support for "import defer" ⚡ builds up to 10% faster ⚡ CLI startup faster by 50–70 ms 📦 preserveModules like Rollup 🕓 1.6 stable coming soon

An implementation of TC39 Stage 3 Import Defer is being worked on in @rspack.dev by @ahabhgk.bsky.social 🎉 This is a performance feature that enables lazy execution of JS modules ⚡ webpack already has (partial) support, so it makes sense for Rspack to achieve parity. github.com/web-infra-de...

Here we are ~ ❤️🎉 🌱 Vue Vine has further enhanced support for the Rsbuild plugin, hoping that users of Rsstack will enjoy using it ~ @rspack.dev

In the next release, @rspack/cli is 40–60 ms faster:

🚀 Rspack 1.6.0-beta.0 is out! ✨ Improved ESM library output (experimental) ✨ Improved MF runtime plugins ⚡ Barrel optimization by default 🗺️ Extract existing source maps 🧩 Stabilized layers 🐞 10+ bug fixes

Vue Vine will add support for Rspack in a version coming very soon! Thanks to the powerful productivity that AI has brought me, enabling me to achieve all this! Thanks for @rspack.dev making such a great tool ~

Replaced our frontend bundling tooling at work with rspack and bun and Im seeing a 70x speedup in builds. Good lord.

Rsbuild dev server got a small boost: ⚡️ Startup 10-20 ms faster ⚡️ HMR 5-10 ms faster

Rsbuild spotted at React Conf 👀✨

The Rspack team is off for a week 🌴 See you soon — we’ll return refreshed and start shaping Rspack 2.0 🦀

Rsdoctor install size reduced from 22.6 MB → 15.7 MB in v1.3 — ~30% smaller & faster installs 🚀

In the next release, Rsbuild will forward browser errors to your terminal — giving your coding agent more context 🤖

Rspack v1.5.7 is out! 🍃 Tree shaking now works for destructuring in `.then()` callbacks 💡 Support preserving JSX in output, commonly used for libraries.

Jiti is now bundled with Rspack/SWC— smaller bundle size & faster. Since Rsbuild relies on Jiti for config loading, this also benefits our users. 🥳

Freshly merged: Next.js with custom Rspack binding unlocks 10%+ faster builds. Performance will keep improving as more code is ported to Rust. github.com/vercel/next....

We should make this

Tried out Rslib with tsgo… my package builds got 2.5x faster 🔥 Now I work with tsgo locally, but CI runs on TypeScript 5.x — more stable that way.

Rspack v1.5.3 is out! ✨ Advanced tree-shaking for dynamic imports 🌐 Module Federation support in @rspack/browser 🚀 Faster bundle splitting 🐞 11 bug fixes

Over 2M weekly downloads. Thanks for packing with us! 🦀

This is a collection of @rspack.dev and RSBuild plugins rolled up into a single rsbuild plugin to enable running of @reactrouter.com's RSC mode in RSBuild. It supports - `import with { env: "react-server" }` - `use client` - `use server` It needs - code splitting - action encryption - css handling

Rslib v0.13 introduces tsgo to make declaration generation faster 🚀

In the next release, Rspack ships advanced tree-shaking for dynamic imports via member expression analysis. We've also contributed this optimization to webpack — pushing the ecosystem forward. 🚀

Great benchmark! We're continuously optimizing Rspack for faster builds and smaller bundle sizes. It's worth noting that webpack/Rspack produce larger bundles in this case due to different handling of dynamic require() in moment.js, see github.com/filipsobol/b...

Rspack v1.5.0 is out! 🎉 ⚡️ Barrel file optimization ⚡️ Faster file system watcher ⚡️ Smaller installation size 💪 Extending Rspack with Rust 💪 Type re-export analysis And many exciting new features... Read more in our blog: rspack.rs/blog/announc...

Rspack 1.5 coming soon 🦀

Congratulations to the MDN team on this amazing launch 🎉 We're thrilled to see MDN's new front end is now powered by Rspack. It's exciting to see our bundler helping deliver an exceptional experience to millions of developers worldwide.

Rspack 1.5 will support the "using" declaration. This enables the explicit resource management feature in ECMAScript, making resource cleanup more straightforward ✨

As we look forward to TypeScript being ported to Go, it raises the interesting prospect of a new stack of tooling that integrates natively on top of it. ESBuild uses Go, but it is fully separate from TS Go. Whereas Rslint is an example of a new Go-based linter with direct integration 🔥

We have a new member in the Rstack family 🦀 Introducing Rslint - a TypeScript-first linter written in Go (powered by typescript-go, not Rust 🙃) Currently in experimental stage - check out the repo's README for more details: github.com/web-infra-de...

Super excited for the upcoming Rsbuild 1.5. We're enabling several Rspack experimental features by default: ⚡ Barrel file optimization → faster builds ✨ Lazy compilation for dynamic imports → faster dev startup 🎯 Inline const for TS enums → smaller bundles

Rspack/Rsbuild v1.5 Beta is here with faster builds 🚀Especially noticeable when building larger applications.

Rspack v1.5.0-beta.0 is out! ⚡️ Faster native watcher ⚡️ Barrel file optimization 🌿 Virtual module plugin 🌿 Custom Rspack binding 🌿 Hoisted federation runtime 🌐 New @rspack/browser package 💡 Drop support for Node 16

We're exploring better tree shaking strategies for future Rspack versions. Our team member @ahabhgk wrote a blog post comparing how webpack, Rspack, Turbopack, esbuild, and Rollup handle tree shaking: github.com/orgs/web-inf...

A new RFC for Rspack's barrel file optimization 👀 github.com/web-infra-de...

Spent the day migrating all Rsbuild npm packages to npm's new trusted publishing feature. Simple setup, no more long-lived tokens needed. Love it! 🥰

We're building an Rspack REPL powered by @rspack/browser. Try out Rspack builds in your browser and easily share results with the community.

Rspack v1.5 will introduce an experimental optimization that skips building unused reexports in side-effect-free barrel files. This reduces the build time of `import { Button } from 'antd'` from 528ms to 82ms.

Rspack v1.4.11 is out: ⚡️ 12 perf improvements 🐞 14 bug fixes We're starting work on v1.5.0 — stay tuned 👀

One of our community partners replaced webpack with Rspack in a popular web framework in China. Here are the benefits reported by users: - 5x faster dev, build, and HMR - 1.1MB smaller bundles

@rspack/browser is cooking 🍳🧑‍🍳

Rsbuild's next release will reduce startup time by ~25ms 🥳

Rspack v1.4.10 is here: ✨ 30% smaller Wasm bundle (38.9MB → 27.2MB) ⚡ 4x faster tree shaking analysis in large projects

Respect for everything the Rspack team has been doing the past year and a half. If you're interested in the Rspack/Rsbuild ecosystem, check out the Awesome Rspack repo for links to great resources courtesy of @rspack.dev. github.com/web-infra-de...