This Week In React #257: Navigation API, PPR, directives, micro-frontends | Godot, RCE, iOS filters, Windows | Node LTS, Safari

#react #reactnative

Hi everyone!

Hi everyone, Seb and Armand here! 👋

This week, we found various interesting React releases and links about directives, Partial Pre-Rendering, performance, micro-frontends, i18n, among other things.

On the React Native side, we had 2 major releases and various interesting weak signals. Beware of the RN Dev Server vulnerability, and make sure to upgrade if needed.

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⚛️ React

💸 Product for Engineers - 32 things we’ve learned about building a startup that scales
🦋 Navigation API - Available in all browsers soon: This exciting new web platform API will soon be available in all browsers and will redefine how we build client-side / SPA navigation. Instead of using the awkward History API (not initially created for SPAs) and having a <Link> component that intercepts clicks to call event.preventDefault() and history.pushState(), there will be a central place to handle and intercept navigation events. The React team is working on a Transition Indicator feature that leverages this API to provide native loading state feedback.
📜 Partial Prerendering - From error-based detection to promise-driven architecture for optimal web performance: A Vercel engineer explains the motivation behind PPR, and why the first attempt - based on throwing errors - didn’t work. This led to a new Promise-based implementation - dynamic IO - later renamed as Cache Components.
📜 Implementing Next.js 16 ‘use cache’ with next-intl Internationalization: Explores an incompatibility between Next.js and the next-intl library due to reading the locale from headers(). An upcoming rootParams Next.js API should help support i18n and multi-tenancy use cases better.
📜 Encapsulate as much state as possible in your component: I agree that it’s often better to encapsulate the loading state of a button triggering an async action instead of exposing that state as a controlled prop.
📜 The New Programming Frontier: Why Vercel is Redefining "The Language": A high-level article explaining the motivations behind directives. They provide language constructs to improve the DX of building distributed systems.
📜 Why startups choose React (and when you shouldn't): Although I don’t necessarily agree with the conclusion, it gives interesting stats about the React ecosystem, including its “library survival rate”.
📜 Using Atomic State to Improve React Performance in Deeply Nested Component Trees: An interactive article showing how Jotai atoms can help prevent useless re-renders.
📜 Quality Assurance for i18n in React: Explores how tools like i18n-check can detect missing or unused translation keys and integrate validation into CI to improve translation quality and consistency across React and React Native apps.
💸 The Road to Next - Master Full-Stack Web Development with Next.js 15 and React 19
📦 Immer 10.2: Mark Erikson noticed a performance loss in recent versions of the popular state update library, and he’s on a journey to fix it. He also released Redux Toolkit 2.10, which picks up the initial set of Immer performance improvements.
📦 React Concurrent Store - Ponyfill of experimental React concurrent stores: A community-built version of the upcoming React Labs feature, whose goal is to test the integration into Redux and Relay. See this related Redux PR for more context.
📦 Turborepo 2.6 - Support for local microfrontend development, Bun package manager stable: It seems Vercel is working on features to improve microfrontend support. See also this podcast with CTO Malte Ubi introducing Remote Components, which should be supported by Next.js later.
📦 Storybook 10.0 - ESM-only, Module automocking, typesafe React CSF factories in preview
📦 TypeScript Plugin Directives - Language Service Plugin that provides IDE-level awareness for "use server", "use client", "use cache", and more
📦 Ink 6.4 - Add onRender() hook
📦 React Intersection Observer 10.0 - New useOnInView() hook
📦 Next SEO 7.0 - Complete rewrite, new API
🔗 Shadcn Registry directory - A list of code registries you can browse and pull code and components from
🎥 Jack Herrington - React Compiler 1.0 with TanStack Start!
🎥 Ben Davis - The Real NextJS Killer is Finally Here...
🎥 Ankita Kulkarni - Everyone's Making Fun of Next.js 16
🎥 Theo - Watch this if you hate React Server Components
🎙️ This Month in React 2025-10: Post-conf; React 19.2, React Foundation, React Native removing old architecture. Next.js has too many directives

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📱 React-Native

React Native + Godot — A new frontier for hybrid apps

Born React Native Godot bridges the Godot game engine directly into React Native apps, letting you embed full 2D/3D scenes and physics worlds as native views. Built by Born and Migeran, it runs on iOS and Android with a dedicated engine thread, pause/resume controls, and complete Godot API access from TypeScript.

Core features:

Cross-platform – Works seamlessly on Android and iOS via LibGodot.
Lifecycle control – Start, stop, or restart the Godot engine dynamically.
Pause/Resume – Halt and resume engine execution without losing state.
Thread isolation – Runs on its own thread to prevent UI jank.
View embedding – Place Godot scenes inside any React Native view.
Full Godot API – Access and control nodes, scenes, and signals from JS/TS.
Worklet bridge – Use React Native Worklets to interact with the engine thread.

This release turns React Native into a true playground for interactive and game-driven experiences merging UI and gameplay in one unified codebase.

Uniwind — The fastest Tailwind bindings for React Native️

Uniwind brings true Tailwind-style className support to React Native, offering build-time speed, seamless theming, and cross-platform styling across web, iOS, and Android.

Created by the team behind Unistyles, it’s designed to unify design systems, accelerate UI builds, and replace ad-hoc styling with a consistent, high-performance approach :

A CSS Parser That Goes Beyond Tailwind – Understands Tailwind v4 syntax and regular CSS for hybrid styling workflows.
Effortless Multi-Theme Support – Register unlimited light/dark or custom themes directly in your Metro config.
Automatic React Native Bindings – Every core RN component supports className, plus extra props like colorClassName.
2.5× Faster Than NativeWind – Build-time caching and Nitro-module integration ensure instant style resolution.
HeroUI Native Collaboration – First UI kit built entirely on Uniwind, proving real-world compatibility and speed.
Pseudo-classes + Responsive Design – Use focus, active, disabled, and media queries just like on the web.
Ready for Scale – Backed by Unistyles tech and optimized for enterprise-grade cross-platform styling.