Hi everyone!
Cyril and Matthieu from Theodo Apps (formerly BAM) here 👋, standing in for Seb to bring you the latest news from React and React Native!
Big news from the React world this week! React 19 is back in RC, six months after its initial release was postponed. The suspense over Suspense is finally easing with the introduction of pre-warming.
Expo is making waves during its launch party, and the excitement keeps building! 🚀
The newly announced Expo Workflows promises to revolutionize CI/CD for React Native apps with pre-packaged jobs, intelligent machine selection, and seamless automation — streamlining the entire release process.
Meanwhile, Universal React Server Components in Expo Router have entered beta, marking a major milestone in the journey toward server-first React Native development.
And the party isn’t over yet! 🎉 Stay tuned for next week’s issue, where we’ll dive into even more announcements from Expo’s ongoing celebration.
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Let’s dive in! 🚀
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We’ve covered how the initial release of React 19 was aborted because of a change in Suspense that would have caused waterfalls in apps that use Suspense without starting fetches in event handlers.
The React team has been hard at work to reintroduce Suspense sibling prerendering without causing performance regressions for apps that start fetching early. Their solution is now ready and it’s called .
As usual, the new features were already available in Next.JS (which uses react canary). They include server components and actions, the new use hook, improvements to forms handling (useFormStatus and useOptimistic), and a small but long-awaited change: forwardRef is not necessary anymore!
- 💸 : A rewrite of App Router's client caching implementation, designed with PPR and "use cache" in mind. Not production-ready at all, but in the future Next will cache by route segment instead of by full URL.
- 👀 : Mofei (React Compiler team) unveils at React Summit the plan to work on a VSCode extension powered by the compiler. Don't get too excited, because we don't know much about it yet!
- 👀 : Robin Wieruch launched his paid Next.js 15 course with early access discounts.
- 🗓️ : A concise article on the most valuable tips to be productive.
- 📜 : At this point you already know that they are not at all the same. This recaps the concrete differences between the two.
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- 📦 : The CMS can now run seamlessly within your existing Next.js app, exposing a
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- 📣 : Expo Router introduces for the first time universal React Server Components, enabling server-side rendering in both native and web apps. Though not production-ready due to unavailable production exports and mainly aimed at library authors, it's an exciting development because it enables direct server-side access to resources like secrets, databases, and file systems, simplifying development and improving performance by eliminating client-server round trips.
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🤭 Fun
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