I am _thrilled_ to announce that: 🔥🔥Redux Toolkit 2.0 is LIVE!!!🔥🔥 github.com/reduxjs/redux-… This major version has new features, faster perf, smaller bundle size, and removes deprecated options. It's accompanied by majors for all our Redux family packages (see below): 1/

Library authors. How do you test for conditional exports?

Vite is a few customization options away from becoming a really good bundler for Node libraries.

After 2 months of trying I finally managed to get to bundle the type definitions for RTK, and the results are glorious. I’m so happy I could cry.

I’m talking about expect-type ViteConf 2024 viteconf.org/24/tickets/mmk…

Are you testing your types? Misha Kaletsky will be at ViteConf to teach us about Vitest's expectTypeOf, a feature implemented with his expect-type library. Get your free ticket today!

Just published a major alpha of the RTK Query OpenAPI Codegen! v2.0.0-alpha.0 has significant updates to the build/packaging config, and includes numerous merged PRs from the community to improve the output. Please try it out and give us feedback! github.com/reduxjs/redux-…

Thank you to Arya Emami for the revamp of the build config, and everyone else who's contributed ! I frequently see folks say how much of a game-changer the OpenAPI codegen is for using RTKQ, so hopefully this continues to make that even better!

Question for the TS experts, is there a TS bundler that can properly do ESM/CJS interop for type definitions? As in emit export default for ESM and export = for CJS. Is there a tool that can do that?

It is! Misha Kaletsky will talk at this year's ViteConf about expectTypeOf, don't miss it! ✅

FINALLY, UnJS jiti v2 is out: - 🔥 Native ESM with top-level await - ⚛️ Built-in JSX - 🚚 ESM Loader - 📦 Dual format pkg - 🎈 jiti/native stub - 🔎 Better inspection Thanks to Anthony Fu 🦋 @antfu.me for all the brainstorming and Arya Emami for ESLint integration.

📦 Anyone can publish to NPM, but what happens when millions use your library? Learn how to manage a top package and its community from Mark Erikson, Senior Front-End Engineer at Replay.

Node excitement 😉 Joyee Cheung has unflagged require(ESM) 🎉 github.com/nodejs/node/pu…

In UnJS jiti 2.1.0: 🚀 Node.js 22 compile cache - %17 faster CLI (thnx Joyee Cheung) 💛 `import.meta.dirname`, and `import.meta.filename` support (thnx Arya Emami) ✅ Other fixes and compatibility improvements

I'm thrilled to finally announce the release of a new testing-library, React RenderStream testing library. We have been using the underlying approach in over 500 Apollo Client tests for a year now, and it has given us a new level of confidence. (Link in next Post)

Today's a big anniversary: Redux Toolkit is 5 years old! We shipped RTK 1.0 on Oct 23, 2019: github.com/reduxjs/redux-… Along with React-Redux hooks, RTK was a huge shift in how Redux is used. We succeeded in our goals of "simplify Redux usage" and "fix common issues". 1/

My ViteConf talk on type testing is 🆙 youtu.be/S-8kEhYpqqA

I'm looking for TypeScript consulting to support my full-time open-source work on ArkType! If your team struggles with... 🧩Writing complex types to optimize DX ☠️tsserver lag in editor 🧪Type testing or benchmarking I can help! If not, retweets also really help💖

Back to the drawing board