There's some impressive work going on with 3rd party oxc powered coverage instrumentation that can replace Babel based istanbul-lib-instrument 👀 > 8-11x faster than babel-plugin-istanbul, 13-15x faster than swc-plugin-coverage-instrument (Rust/WASM), 25-30x faster than istanbul-lib-instrument.

rtk - Your AI coding agent is drowning in CLI noise. RTK compresses outputs by 89%. Open source, Rust. github.com/rtk-ai/rtk

Async leak detection in action - caught a missing gcTime: Infinity in our TanStack Query test setup in one of our projects.

Very excited about this update! Tons of new stuff coming 🎉

npmx is now in alpha: this is our story, as told by our team and friends

today we saw the launch of npmx! here's what the community has already been collaborating on as part of this alpha launch, and what more is to come 🎉

Flaky tests on CI with no clear cause? Vitest 4.1 detectAsyncLeaks uses node:async_hooks to track and report uncleaned async resources between tests.

Flaky tests and memory leaks are the worst. @vitest.dev now has a flag that catches uncleared intervals, lingering servers, and other async operations leaking across your tests. Available in the latest 4.1 beta. Big shout out to @ariperkkio.dev from the Vitest team for landing this PR! 🔥

Spent 7 years in the GraphQL ecosystem. Here's what we got wrong: ❌ POST'ing documents as default ❌ Selling "versionless" APIs as realistic ❌ Ignoring HTTP caching entirely ❌ Making it complex for beginners ✅ The tech is solid. The guidance needs work. www.jovidecroock.com/blog/graphql...

🚀 🆕 style-observer: A robust solution for observing CSS property changes in JS. Developed with @d12n.me’s help over the last month. Made possible by the pioneering work of @bram.us, Artem Godin, @janeori.propjockey.io and many others! Blog post: lea.verou.me/blog/2025/st... Docs: observe.style

@webstudio.is CLI got 600kB smaller without react in dependencies packagephobia.com/result?p=web...

If you use pnpm in your projects, you can try it now with: pnpx [email protected]

Wrote a short article on why the modern Request/Response API is so much better compared to node:http . marvinh.dev/blog/modern-...

Package install size is a good metric but amount of dependencies is crucial for faster installation. Here's before and after removing 100 transitive dependencies from Webstudio

Proposing an extended SemVer - 🗿 Epoch Semantic Versioning to communicate better about versions. Thinking of adopting this to all my projects, and finally eliminating my lousy habit of forever zero-major practice 😜 What do you think? 👀 antfu.me/posts/epoch-...

Just tried out sonda.dev , a new bundle analyzer from @filipsobol.bsky.social . Very impressed! Simple to set up, fast results, and particularly handy view of size from original lib sources (assuming lib sourcemaps) with the `detailed` option.

I _love_ Immer for making immutable updates simpler to write. (I'm even quoted in the docs saying that!) That said, we had an RTK issue complaining about Immer perf. I put together my own benchmarks, and confirmed Immer seems to have gotten slower over time. Issue: github.com/immerjs/imme...

👏 Great post by @daishikato.com about what RSCs can mean for single page applications:

My co-worker shared an article written by my former co-worker at my last company and I thought it was so cool that I could say: Hey I used to work with him! @tomaszgil.me blog.tomaszgil.me/choosing-the...

This Week In React 214 Read/Subscribe: thisweekinreact.com/newsletter/214 ⚛️ - Base UI - Custom Elements - Next.js - TanStack - React Router - Apollo - Inertia - Virtua - MUI - RoadmapUI - Remotion 📱 - AndroidXR - iOS targets - Nitro - Drag Select - Volume Manager - RNTL - APNS - brownfield