Child chunks can now reuse more modules already available from their parents, while preserving loading behavior.
PR details 👇
github.com/web-infra-de...
@rspack.devRspack
@rspack.dev
Rstack is a lightning-fast JavaScript toolchain that includes Rspack, Rsbuild, Rslib, Rspress, Rsdoctor, Rstest and Rslint.
@rspack.dev@rspack.devLess duplicate code. Smaller bundles. 📦 We've improved Rspack's chunking algorithm to reduce duplicate modules across chunks. In a large production project, this change resulted in: • -2.53% raw JS size • -1.51% chunks
@rspack.devA small milestone: 10M weekly downloads for Rspack Thank you for building with us ❤️
@rspack.devRunning agents in parallel puts more pressure on memory. We’re making Rspack use less memory to help
@oskarlebuda.bsky.socialReposted by @rspack.devNew @vuejs.org DevTools v9 beta now works with
@rspack.dev and Rsbuild too! 🦀
Same devframe dock as Vite DevTools, no Vite needed.
@chenjiahan.bsky.socialReposted by @rspack.devWe’re putting more focus on memory usage in Rspack and Rsbuild, especially for large codebases or when running multiple agents in parallel. Recent optimizations reduced peak dev memory by 19.5% in one large project, with faster startup and rebuilds too
@chenjiahan.bsky.socialReposted by @rspack.devRstack!
@rspack.devLess code to ship!
@chenjiahan.bsky.socialReposted by @rspack.devRspack's code splitting balances bundle size, chunk count, and build time. The next release adds `splitChunks.dedupDepth` to spend more time finding shared code and reducing duplication. In one real-world app with many routes, using this option cut total output size by 9.9%
@rspack.devRead the Rstest 0.12 announcement and upgrade details 🦀
👉 rstest.rs/blog/announc...
@rspack.dev🦀 Rstest 0.12 is out! More you can test, and faster ways to run it. 🎭 E2E testing with @rstest/playwright 🧩 Test Module Federation remotes ⚡ vmThreads / vmForks: 9.5× faster on a 2,400-file suite 📦 jsdom / happy-dom load faster out of the box 🛠️ New JavaScript API for tools
@chenjiahan.bsky.socialReposted by @rspack.devWe recently upgraded an internal monorepo from Rspack v1 to v2. Build time dropped ~45% Then we noticed the repo had added 4 million lines over the past 6 months. About 80% was TS, mostly written by agents Still plenty to do to keep Rspack and JS tooling fast enough for agents
@rspack.devThe official Lynx scaffolder is expanding
- Rsbuild template for apps
- Rslib template for component libraries
- Rstest included in every template
Pull Request👇
github.com/lynx-family/...
@rspack.dev🦀🦊 Coming in the next Lynx release: - build Lynx apps with Rsbuild - ReactLynx component libraries with Rslib - test with Rstest
@rspack.devRspack will also get 2.4 MB smaller ⚡
@chenjiahan.bsky.socialReposted by @rspack.devSWC's binary just got 2.4MB smaller. Rspack and Turbopack could benefit too. Thanks @swwind233 for the optimizations
@chenjiahan.bsky.socialReposted by @rspack.devGreat to see Vercel contributing to React Compiler's Rust implementation! Official crates are now available, so SWC and Rspack have switched from forked crates to the official ones.
@chenjiahan.bsky.socialReposted by @rspack.devDeepSeek's web app is now on Rspack v2! 🐋 🦀
@chenjiahan.bsky.socialReposted by @rspack.devTanStack Start + Rsbuild keeps getting faster 🚀 @CongCongPan optimized import-protection reporting, making SSR builds 23.4% faster and client builds 10% faster in a real-world project
@chenjiahan.bsky.socialReposted by @rspack.devWe originally built Rslib to unify ByteDance’s web apps and JS libs around Rspack. Getting there wasn’t easy. Rspack inherited an architecture primarily designed for bundling apps, so we made many improvements to produce clean ESM for libs.