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📨 #187: Next.js, Expo, Popover, rethrow, SWR, React-Query, Astro, PPR, tRPC, zsa, Memory leaks, INP, RN IDE, Skia, WebGPU, RNSC, Atlas, Re.Pack, Prisma, SwiftUI, Flutter, Angular...

· 10 min read
Sébastien Lorber
Sébastien Lorber
Newsletter Editor - Docusaurus maintainer
Benedikt Müller
Benedikt Müller
Indie Hacker

Hi everyone!

Last week we got great announcements from Vercel Ship and App.js conferences.

I also found the community blog posts very interesting this week! There's a lot of good content to read here. The one about memory leak is quite scary 😅.

I have been wondering lately: is it still useful to write a Twitter thread? I've asked the question on Twitter and feel like nobody reads it anymore, apart a few people. I'm considering stopping. What do you think? 🤔

💡 Check this newsletter on Twitter - visual format 🎨

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    ⚛️ React​

    Next.js 15 RC

    Next.js 15 RC

    A new major version of Next.js dropped in RC at Vercel Ship last week. The highlights of this version are:

    • React 19 RC support
    • React Compiler support (experimental) through the Babel plugin (this might increase build time)
    • Hydration error improvements, displaying the diff mismatch
    • Less aggressive caching, now opt-in: fetch and Route Handlers are no longer cached by default
    • Incrementally adopt Partial Prerendering with a new experimental_ppr route config option
    • New create-next-app design, prompting for Turbo usage in dev, and ability to create projects
    • next/after (experimental), a new API useful to defer analytics tasks and keep responses fast
    • Optimizing bundling of external packages (serverExternalPackages) now stable

    Other interesting things were announced at Vercel Ship. Additional resources to look at:

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      📱 React-Native​

      This section is authored by Benedikt.

      screenshot of 4 App.js slides

      The dry season of everyone saving their announcements for upcoming conferences is over, with last week’s App.js Conf dropping another bucket of amazing content and exciting announcements on us! Expo announced the aptly named Atlas, which acts as a map to explore the wilderness of Bundler land. If you ever wanted to understand how code goes in and comes out of your app, this is the tool for it. It’s especially useful to reduce bundle size, but also just to get a better understanding of how your app works. In the ORM space, Drizzle launched their Studio as an Expo dev tools plugin and Prisma announced that they’ll be adding React Native support. The React Native IDE is now in open beta and you can download it in the VS Code extension marketplace and finally, William Candillon announced video support coming to RN Skia, as well as WebGPU in React Native! Of course, we remain super excited by Universal React Server Components that we already mentioned last week. Make sure to catch up and watch the App.js Conf Live stream.

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