This article details Vercel's process of creating their first iOS app, v0, using React Native and Expo. It focuses on the chat experience, outlining specific features and technical implementations used to achieve a smooth and engaging user interface.

Uniwind is a new library that allows React Native developers to use Tailwind CSS for cross-platform styling, significantly enhancing performance and stability. It features a high-performance CSS parser and easy theming options, making it a strong alternative to existing solutions like Nativewind. The article also announces a collaboration with HeroUI and hints at an upcoming Pro version with advanced features.

The SDK 55 beta is now available for developers to test for about two weeks. It includes major updates like support for Hermes v1, a revamped project template, and expanded AI tooling, along with dropping support for the Legacy Architecture. Developers can check changelogs and participate in Discord office hours for testing.

A serious security vulnerability in the "@react-native-community/cli" npm package allowed attackers to execute arbitrary OS commands on development servers. The flaw, tracked as CVE-2025-11953, was patched in version 20.0.0 after being discovered by JFrog's security team. Developers using affected versions are at risk if they run the Metro development server.

This article explains how to create iOS widgets using Expo and Swift, focusing on the development of a widget-centric affirmations app called Glow. It covers the technical challenges, architecture, and the benefits of integrating widgets into mobile apps.

React Native Godot lets you integrate the Godot Engine into your React Native applications for both iOS and Android. It allows for managing Godot instances, accessing the Godot API from JavaScript, and handling app-specific configurations. The setup includes scripts for dependency management and project export.

This article introduces Nativewind, a toolkit for building mobile apps using React Native and Expo. It offers over 30 customizable components and templates, designed to work seamlessly on both iOS and Android. Developers can quickly create native-quality apps with ready-to-use flows for various functionalities.

This article introduces a framework that generates user interfaces using AI from natural language prompts. It allows developers to define a catalog of components and actions, ensuring the output is predictable and safe. The framework supports React, React Native, and video rendering.

This guide explains how to add Expo and React Native to an existing native application using the integrated approach. It covers prerequisites, project setup, and specific configurations for both Android and iOS platforms. You'll learn to create a React Native view within your native app without a complete rewrite.

HelloFresh is transitioning its mobile app infrastructure through Project Unified Mobile App (PUMA), which aims to consolidate multiple codebases into a single platform using Brownfield React Native. This approach enhances feature development speed, reduces engineering redundancy, and improves customer experience across its brands. The initiative not only focuses on technical migration but also emphasizes organizational efficiency and innovation.

The article discusses the release of React Native version 0.80, highlighting key features, improvements, and bug fixes included in this update. It emphasizes enhancements in performance and user experience, encouraging developers to adopt the latest version for their projects.

Enhanced developer tools for React Native applications allow for real-time monitoring of React Query state and device storage through a user-friendly native interface. It supports various platforms and offers features such as environment variable tracking, automatic connection, and easy setup with NPM, making it versatile for React-based development.

WebGPU Worklets enable developers to run libraries such as react-native-wgpu and Three.js on the UI Thread via Reanimated Worklets, allowing for smooth 3D animations. The integration requires specific versions of Reanimated and Worklets, and includes guidelines for initializing GPU access, handling gestures, and optimizing performance with ModulesConfig.

BNA UI is a command-line interface (CLI) tool designed for creating Expo React Native applications, featuring a collection of customizable and modern UI components. It supports light/dark themes, TypeScript, and provides a seamless setup for navigation and performance optimization across iOS and Android platforms. The project encourages community contributions and offers comprehensive documentation for users.

The article explores the evolution of creating universal applications that run across multiple platforms using a single codebase, highlighting the advancements in technology that make this feasible today. It discusses the benefits of universal apps, such as reduced operational costs and improved team efficiency, while also sharing lessons learned from past experiences and the importance of careful architectural decisions. New tools like Solito and Expo Router are emphasized as key enablers for successful universal app development.

Loading Lottie JSON files as assets on demand can significantly improve the App Start Time and reduce memory usage in React Native applications. By moving these files to the assets directory and utilizing libraries such as react-native-fs, developers can efficiently read and manage animation files. Implementing lazy loading and caching strategies further enhances performance and user experience.

react-native-mmkv version 4.0.0 introduces a complete rewrite to Nitro, enhancing compatibility with older architectures and integrating MMKVCore from CocoaPods/Gradle. It features improved error handling, key management, and upgrades to React Native and Nitro versions, ensuring better performance and usability.

A collection of on-device AI primitives for React Native is available, supporting low-latency inference without server costs and ensuring data privacy. The toolkit includes features such as text generation, embeddings, transcription, and speech synthesis, all optimized for Apple devices and compatible with the Vercel AI SDK. Additionally, users can run popular open-source language models directly on their devices using MLC's optimized runtime.

Legend List is a high-performance React Native list component optimized for handling dynamically sized items without native dependencies. It offers API compatibility with FlatList and FlashList, supports features like bidirectional infinite scrolling, and is designed to be lightweight with optional plugins for advanced use cases. The component aims to enhance performance in chat interfaces and complex UIs while maintaining easy integration across platforms.

Expo SDK 54 beta has been released, allowing developers to test new features and improvements, including React Native 0.81 and React 19.1.0. Significant enhancements include precompiled XCFrameworks for iOS, support for Liquid Glass icons, and changes to dependency handling for React Native modules. Additionally, the beta introduces updates to the Expo UI and modifications to build processes for Android applications.

Transitioning from React for the web to React Native involves understanding key differences in components, styling, and navigation. While many React concepts carry over, developers must adapt to React Native's unique environment, including its use of native UI components and alternative libraries for navigation and debugging. The article provides practical insights and tips for making this transition smoother.

The article discusses the improvements and features of FlashList v2, a high-performance list component designed for React Native applications. It highlights the optimizations made for rendering large lists efficiently, enhancing user experience and performance. Additionally, the article provides insights into the technical aspects and use cases for developers looking to implement this component in their projects.

The react-native-screens project provides native navigation container components for React Native, intended as a dependency for full-featured navigation libraries rather than a standalone library. It supports multiple platforms including iOS, Android, and Windows, and includes specific integration guidelines and code snippets for handling common issues and configurations.

Reanimated 4 has been released as a stable version, introducing a new CSS-compatible animation API that simplifies state-triggered animations in React Native. While the focus is on declarative CSS animations for ease of use and optimization, worklets remain essential for complex animation scenarios. The update ensures compatibility with previous versions and aims to enhance developers' experiences in creating dynamic mobile app interfaces.

Motion's experience with React Native revealed significant performance issues as their app's CPU usage peaked at 190%, particularly with complex screens like the calendar. Despite initial benefits, the team transitioned to a hybrid approach by developing features in React Native and converting them to native code based on performance needs, which ultimately improved efficiency.

Starting June 2nd, the Legacy Architecture of React Native will be frozen, meaning no new features or pull requests will be accepted. The focus will shift entirely to the New Architecture, with a commitment to stop supporting and testing the Legacy Architecture, guiding users towards migration to the new system.

An app developed for the boating community faced issues with battery consumption and crashes, prompting a three-month optimization project. By adjusting GPS usage, reducing unnecessary re-renders, and fixing headless mode transitions, the app's crash-free rate improved to nearly 99% while significantly enhancing battery efficiency.

The React Native team has announced the release of version 0.79, which includes several new features, performance improvements, and bug fixes aimed at enhancing developer experience and app performance. Notable updates include better error messages, updated libraries, and additional support for new platforms and functionalities. The release also emphasizes community contributions and ongoing efforts to refine the framework.

A React Native plugin enables access to Apple's on-device Intelligence Foundation Model framework, allowing developers to utilize local LLM APIs for generating structured outputs and managing sessions. It focuses on privacy by processing data on-device and supports various features like TypeScript, custom tools, and session management, making it suitable for AI-powered mobile applications.

Callstack has released a new React Native library called react-native-ai that allows on-device execution of large language models (LLMs) using the MLC LLM Engine. The library simplifies integration with the Vercel AI SDK, enabling developers to run AI models efficiently on mobile apps while addressing various setup challenges. Future plans include enhancing the library's capabilities and providing more resources for developers.

The React Foundation has been established as the new home for React and React Native, aiming to foster community collaboration and support for the development of these popular JavaScript libraries. The foundation will focus on enhancing the ecosystem, promoting best practices, and ensuring the longevity of the projects through open-source contributions. This initiative represents a significant step in organizing and strengthening the React community.

A customizable React Native calendar component is provided through the react-native-calendars package, which works on both Android and iOS without the need for native code. It features date marking, style customization, accessibility support, and examples for easy integration into projects.

react-native-enriched is a React Native library that provides a highly performant rich text editor component, EnrichedTextInput, which supports various text styles, mentions, and links. It is designed for mobile platforms with support limited to the React Native New Architecture and includes native code that requires building the app to use. The library offers customizable styles, events for handling text changes, and future enhancements planned for expanded functionality.

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The article discusses the new architecture of React Native, detailing its design improvements aimed at enhancing performance and developer experience. It highlights the transition from the old architecture to the new one, emphasizing benefits such as better integration with native platforms and improved loading times for applications. Additionally, it outlines the development process and community feedback that shaped these changes.

Nitro Image is a high-performance image component for React Native, utilizing Nitro Modules for efficient native bindings. It supports various image operations such as resizing, cropping, and loading from different sources, including web URLs, with features like ThumbHash for elegant placeholders and in-memory processing without file I/O. The component is designed for ease of use, requiring minimal setup and enabling advanced image handling in React Native applications.

The article outlines the initial steps in creating a high-performance photo list app in React Native, akin to Apple and Google Photos. It discusses efficient image loading techniques, such as batching and caching, the advantages of using Expo Image over React Native's default Image component, and the importance of optimizing with mipmaps. Additionally, it evaluates various list components to ensure a responsive user experience.

React Native RAG is a new local library that enhances large language models (LLMs) with Retrieval-Augmented Generation (RAG) capabilities, allowing for improved, context-rich responses by retrieving relevant information from a local knowledge base. It offers benefits such as privacy, offline functionality, and scalability, while providing a modular toolkit for developers to customize their implementations. The library integrates seamlessly with React Native ExecuTorch for efficient on-device processing.

SnapAI is a tool for React Native and Expo developers that enables the rapid generation of high-quality app icons using OpenAI's image models. It offers features such as zero data collection, multiple icon sizes, and customization options for various design styles, making it easy for developers to create professional icons quickly.

A DevTools plugin enhances Zustand state debugging within Expo DevTools, enabling real-time state inspection, action tracking, and time travel debugging. It integrates seamlessly with Expo and supports TypeScript, providing a user-friendly interface for developers to monitor and manage their Zustand stores effectively. The plugin is automatically disabled in production builds for safety.

Expo SDK 53 beta has been released for a two-week testing period, featuring React Native 0.79.0 and React 19.0.0, with significant changes such as the New Architecture being enabled by default for all projects and improved support for edge-to-edge display in Android apps. Developers are encouraged to test the new features and provide feedback during this beta phase.

rn-fade-wrapper is a performant React Native component designed to add customizable fade gradients to the edges of content, enhancing user experience in scrollable views. It supports both iOS and Android platforms and allows for various gradient orientations, sizes, and colors, making it ideal for indicating content overflow in carousels and lists. With a simple API, it is easy to implement and integrate into existing applications.

Zalando is modernizing its mobile app by integrating React Native into its existing architecture, allowing for gradual migration and cross-platform experiences. This approach utilizes their internal Rendering Engine framework to enhance development speed and efficiency while maintaining compatibility across both mobile and web platforms.

Autolinking in Expo and React Native aims to simplify dependency management by automatically linking native modules; however, it often leads to complex issues due to the unique requirements of native dependencies. The article discusses the challenges of maintaining dependencies, particularly in monorepos, and the risks associated with implicit dependencies, which can result in version conflicts and build errors. It highlights the need for careful management of both direct and transitive dependencies to avoid runtime issues in applications.