--- title: "React & React Native Newsletter | AI Updates | Callstack" description: "Get React and React Native news, AI development tools, open source releases, and practical engineering insights from Callstack. Subscribe for updates." url: https://www.callstack.com/newsletter updated: 2026-11-06T10:13:45.616Z --- # React & React Native Newsletter | AI Updates | Callstack Get React and React Native news, AI development tools, open source releases, and practical engineering insights from Callstack. Subscribe for updates. Callstack Newsletter ## React, React Native, and AI in your inbox Get our monthly newsletter on React and React Native releases, AI coding agents, and the tools we build for software delivery. ### Read engineering insights Read technical articles and lessons from building React and React Native products, developing agent tools, and verifying AI-generated code. ### Follow releases and tools Keep up with React and React Native releases, open source updates, and AI tools we use and build. ### Catch our latest publications Find new React Universe On Air episodes, technical articles, and open source releases from Callstack. ## Past editions Just joined? Don't worry! Here are all past editions to get you up to speed. ### [Apex Is Live, Mobile Dev Comes to Codex, and e2e Gets Agentic](https://www.callstack.com/newsletters/apex-is-live-mobile-dev-comes-to-codex-and-e2e-gets-agentic) October 2026 Seven community updates, our first release with Margelo, and the latest from Callstack Incubator. ### [Margelo Joins Callstack, React Native 0.87, React 19.3, Apex almost GA, Rozenite UI](https://www.callstack.com/newsletters/react-native-0-87-rozenite-for-agents-and-a-mac-mini-device-cloud) September 2026 Apex prepares for general access, Rozenite adds agent skills, and a Mac mini becomes an iOS simulator cloud. Plus: React 19.3 and React Navigation performance benchmarks. ### [Expo SDK 57, Hermes V1+, agent-device Replay, GPT-5.6, Grok 4.5 RN Evals, Apex launch, Octane](https://www.callstack.com/newsletters/expo-sdk-57-hermes-agent-device-replay-apex-and-react-native-evals) August 2026 Cloud device testing, smarter agent replays, React Navigation 8 progress, and more CSS in React Native core. ### [React Native 0.86, SPM, Gesture Handler 3, Apex, and Agent Device](https://www.callstack.com/newsletters/react-native-0-86-spm-gesture-handler-3-apex-and-agent-device) June 2026 React Native 0.86, Swift Package Manager progress, Gesture Handler 3.0, Apex growth, faster Agent Device runs with Maestro support, and updates from React Navigation and Brownfield. ### [Apex, Agent Device, Expo SDK 56, Inspector, and React Native Evals](https://www.callstack.com/newsletters/apex-agent-device-expo-sdk-56-inspector-and-react-native-evals) May 2026 npm supply-chain attacks, Expo SDK 56, Apex for React Native coding, faster Agent Device with Maestro support, new Inspector tooling, and the latest updates from React Native Evals, Brownfield, React Navigation, and Rozenite. ### [Agent Device, React Native 0.85, Expo UI, Skillgym, and React Native Evals](https://www.callstack.com/newsletters/agent-device-react-native-0-85-expo-ui-skillgym-and-react-native-evals) April 2026 Agent Device expands beyond mobile with new targets, smarter screenshot diffing, and cloud options, while React Native 0.85 brings core animation and DevTools improvements. Plus: Expo UI on Android, Skillgym for testing agent skills, updated React Native Evals benchmarks, and more from Brownfield, Voltra, and React Navigation. ### [React Native Evals, Expo SDK 55, and WebAssembly in Hermes](https://www.callstack.com/newsletters/react-native-evals-expo-sdk-55-and-webassembly-in-hermes) March 2026 Expo SDK 55 lands with RN 0.83, Hermes gets WebAssembly support, and we’re launching React Native Evals to benchmark AI models. Plus: new tools from our Incubator, updates to Brownfield, and what’s next for React Navigation. ### [Agent Skills, Agent-Device, React Native 0.84, and Expo SDK 55. What else is new?](https://www.callstack.com/newsletters/agent-skills-agent-device-react-native-0-84-and-expo-sdk-55) February 2026 This edition puts agentic development front and center, featuring new Agent Skills for React Native upgrades and performance, the launch of agent-device for AI-native mobile automation, and Rozenite DevTools experiments. We also cover React Native 0.84 with Hermes V1 by default, Expo SDK 55 beta, HarmonyOS Next support, Voltra updates, React Navigation 8 progress, CSS calc in React Native, fresh Callstack articles, podcasts, livestreams, and our upcoming Callstack x Vercel AI SDK Meetup in Wrocław. ### [Voltra Launch, React Navigation 8 Alpha, Brownfield “Brownie”, and React Native AI x llama.rn](https://www.callstack.com/newsletters/voltra-launch-react-navigation-8-alpha-brownfield-brownie-and-react-native-ai-x-llama-rn) January 2026 This edition covers the upcoming React Universe Meetup x Zalando in Berlin, the new Horizon OS (Meta Quest) guide Hermes’ new official blog, a new React Native security scanner (RNSec), PagerView’s SwiftUI rewrite, Rozenite-powered Metro import profiling, plus fresh Callstack articles, podcasts, and livestreams. ### [React Native on Meta Quest, Tailwind Support, Voltra Updates, and TV Dev Guide](https://www.callstack.com/newsletters/react-native-on-meta-quest-tailwind-support-voltra-updates-and-tv-dev-guide) December 2025 This edition brings Tailwind to RN, TV dev strategies from our new guide with Amazon, and a trip into memory models. Also: Valdi, Vega OS, and a peek at React Native inside Unreal Engine. ### [Swift for Android, React Navigation Updates, Voltra, and React Native on Meta Quest](https://www.callstack.com/newsletters/swift-for-android-react-navigation-updates-voltra-and-react-native-on-meta-quest-october-2025) November 2025 This edition also covers new CSS properties in React Native, the latest RFCs, and our upcoming talks in London and Munich, plus fresh insights from the Callstack team and community. ### [All Lights on React Conf 2025: Big Moves for React & React Native](https://www.callstack.com/newsletters/all-lights-on-react-conf-2025-big-moves-for-react-react-native-september-2025) October 2025 React Conf 2025 changed the game: React Foundation, \, React Compiler 1.0, and more. Get our take on what it all means for React and React Native devs, including key updates, links, and demos straight from the Callstack team. ### [React Universe Conf Recap, RN 1.0 Buzz, and Tools You Don’t Want to Miss](https://www.callstack.com/newsletters/react-universe-conf-recap-rn-1-0-buzz-and-tools-you-dont-want-to-miss-august-2025) September 2025 Catch up on everything from React Universe Conf: RN 1.0 updates, FlashList v2, new AI tools, and open-source releases like Ottrelite, Rock, Rozenite, and more. ### [Rozenite, RN AI, Node-API, Sandbox, Brownfield Guide, and Rock: We Shipped A LOT](https://www.callstack.com/newsletters/rozenite-rn-ai-node-api-sandbox-brownfield-guide-and-rock-we-shipped-a-lotjuly-2025) August 2025 Discover the latest from Callstack's Incubator, including new tools for on-device AI, React Native DevTools plugins (Rozenite), and a free guide on brownfield adoption. ### [Node-API, Rock×S3, React Native Harness, AI on iOS, React Universe Conf Countdown](https://www.callstack.com/newsletters/node-api-rockxs3-react-native-harness-ai-on-ios-react-universe-conf-countdown-june-2025) July 2025 In June, we shipped Node-API support for RN, played with MCP and on-device AI, added S3/R2 caching to Rock, explored RN 0.80 & Android 16, and introduced Liquid Glass tabs in Bottom Tabs. ### [RN at MS Office, Offline Apple AI, MCP at Home, Rock×S3, Metro MF, New Testing Framework](https://www.callstack.com/newsletters/rn-at-ms-office-offline-apple-ai-mcp-at-home-rockxs3-metro-mf-new-testing-framework-may-updates) June 2025 In May, we learned how much of React Native is running at MS Office (a lot), played with MCP, experimented with new testing frameworks & offline AI models on Apple devices, shipped S3 support to Rock, and more. ### [Rock is Open-Source, RN 0.79, Expo 53, Offline AI, Faster List](https://www.callstack.com/newsletters/rock-is-open-source-rn-0-79-expo-53-offline-ai-faster-list-april-updates) May 2025 Dive into React Native community news and Callstack’s latest projects, including offline AI, Module Federation in Metro or React Native Brownfield v1. ### [10 Years of React Native: Where Do We Go From There?](https://www.callstack.com/newsletters/10-years-of-react-native-march-updates) April 2025 React Native ecosystem just took a leap forward, here's what's new. ### [Enterprise React Native, Re.Pack 5, Polygen, AI on Mobile, and More](https://www.callstack.com/newsletters/enterprise-react-native-re-pack-5-polygen-ai-february-updates) March 2025 See what we've been up to in February 2025. ### [From brownfield to AI, from Polygen to Re.Pack](https://www.callstack.com/newsletters/brownfield-ai-polygen-repack-january-updates) February 2025 Check out everything that happened at Callstack in January 2024, including latest releases, guides, podcasts & meetups ### [Kotlin, Compose, Expo SDK 52, and January News](https://www.callstack.com/newsletters/community-orbitals-5-kotlin-compose-expo-sdk-52-and-january-news) January 2025 Get insights into Kotlin, Compose, and Expo's DOM & Server Components, transforming the future of universal apps ### [Expo vs. Bare Setup for TV Apps & React Native FastIO](https://www.callstack.com/newsletters/expo-vs-bare-setup-for-tv-apps-react-native-fastio) December 2024 Explore the possible setups for TV apps, and discover how FastIO is redefining React Native performance. ### [TV App Development With React Native, and December News](https://www.callstack.com/newsletters/community-orbitals-4-tv-app-development-with-react-native-and-december-news) December 2024 Master TV app development with our ebook and blog, and gear up for React Universe Conf 2025 🥳 Plus, read the latest community updates! ### [React Native for TV: Your Complete Development Ebook Is Here](https://www.callstack.com/newsletters/react-native-for-tv-your-complete-development-ebook-is-here) November 2024 Master TV app development with Amazon and Callstack experts. Download our ebook, and tune in to a podcast episode on TV apps! ### [Next.js 15, React Native for TV, and Other November News](https://www.callstack.com/newsletters/community-orbitals-3-next-js-15-react-native-for-tv-and-other-november-news) November 2024 Dive into Next.js 15 updates and get ready to master React Native for TV with our upcoming ebook. ### [Boost App Performance with RUM & Get Ready for a TV Ebook](https://www.callstack.com/newsletters/boost-app-performance-with-rum-get-ready-for-a-tv-ebook) October 2024 Get the latest on enhancing your app with Real User Monitoring and our upcoming ebook, crafted with Amazon, for the ultimate React Native TV experience. ### [OMH Cloud Storage Module and Other October News](https://www.callstack.com/newsletters/community-orbitals-2-omh-cloud-storage-module-and-other-october-news) October 2024 Discover how Open Mobile Hub (OMH) Cloud Storage redefines data management for React Native, and check the latest community news. ### [Unlock Easier React Native Migration for Brownfield iOS Apps](https://www.callstack.com/newsletters/unlock-easier-react-native-migration-for-brownfield-ios-apps) October 2024 Discover how the RCTRootViewFactory API simplifies React Native integration for existing iOS apps, making brownfield projects smoother than ever. ### [Developer Guide to React 19 and Other September News](https://www.callstack.com/newsletters/community-orbitals-developer-guide-to-react-19-and-other-september-news) September 2024 Explore the latest React 19 updates with our complete 3-part guide, and relive the best moments from React Universe Conf 2024! ### [Building Super Apps With Re.Pack 5, Rspack, and Zephyr Cloud](https://www.callstack.com/newsletters/building-super-apps-with-re-pack-5-rspack-and-zephyr-cloud) September 2024 Explore how Re.Pack 5, with Rspack support and Zephyr Cloud integration, is making React Native super app development easier than ever. ### [\[Special edition\] Final call: Join React Universe Conf](https://www.callstack.com/newsletters/special-edition-final-call-join-react-universe-conf) August 2024 Final call: Join React Universe Conf! Check our newsletter's special edition for more details. ### [Unlock Cross-Platform Potential: OMH Maps & New Podcast Inside](https://www.callstack.com/newsletters/unlock-cross-platform-potential-omh-maps-new-podcast-inside) August 2024 Read our newsletter to unlock cross-platform potential. OMH maps and new podcast inside! ### [TV Apps in React Native, Flutter Integration & August Community Updates](https://www.callstack.com/newsletters/tv-apps-in-react-native-flutter-integration-august-community-updates) August 2024 TV Apps in React Native, Flutter Integration & August Community Updates ### [React Native Insights: Optimization, Monitoring, and Mapping](https://www.callstack.com/newsletters/react-native-insights-optimization-monitoring-and-mapping) July 2024 Master app performance optimization, discover Reassure's new features, and explore map integration. ### [Podcast, conferences & July community updates](https://www.callstack.com/newsletters/podcast-conferences-july-community-updates) July 2024 Podcast, conferences & July community updates - check our newsletter for the details! ### [React Native VisionOS Insights: New Podcast and Article](https://www.callstack.com/newsletters/react-native-visionos-insights-new-podcast-and-article) June 2024 Dive into our new podcast episode, and read key insights from the Apple Vision Pro showcases at React Conf and App.js Conf. ### [New Webinar, Training Program & June Community Updates](https://www.callstack.com/newsletters/new-webinar-training-program-june-community-updates) June 2024 Join our webinar on June 20, and sign up for the course on July 9-10. Read on for more details! ### [React Native Performance: TV App Webinar & Optimization Course](https://www.callstack.com/newsletters/react-native-performance-tv-app-webinar-optimization-course) May 2024 Elevate your React Native skills with our optimization course and webinar on TV app performance. ### [App performance case studies & May community updates](https://www.callstack.com/newsletters/app-performance-case-studies-may-community-updates) May 2024 Check our case studies, app performance resources, and the latest community news. ### [Join the Discussion: From Developer to Tech Lead](https://www.callstack.com/newsletters/join-the-discussion-from-developer-to-tech-lead) April 2024 Dive into the world of tech leadership in our latest podcast episode. Explore more about the development journey in our blog post! ### [React Native Performance in 2024 & April Community Updates](https://www.callstack.com/newsletters/react-native-performance-in-2024-april-community-updates) April 2024 Check our mini guide to React Native optimization for web3, our latest podcast episode, and community news. ### [Join us at The Ultimate Guide to React Native Optimization on Tour](https://www.callstack.com/newsletters/join-us-at-the-ultimate-guide-to-react-native-optimization-on-tour) March 2024 Let's level up our optimization skills together in San Francisco on April 11, 2024. ### [React Native Performance Optimization & March Community Updates](https://www.callstack.com/newsletters/react-native-performance-optimization-march-community-updates) March 2024 Learn all about performance optimization, and check the latest community news. ### [New Edition of the Ultimate Guide To React Native Optimization Came Out](https://www.callstack.com/newsletters/new-edition-of-the-ultimate-guide-to-react-native-optimization-came-out) February 2024 Unlock React Native optimization with our Ultimate Guide. Grab your free copy! ### [React Universe Conf Updates & New Podcast Episode](https://www.callstack.com/newsletters/react-universe-conf-updates-new-podcast-episode) February 2024 Read the breaking news about our conference, React Universe Conf, and check our new podcast episode. ### [React Native Available for Apple Vision Pro & February Community Updates](https://www.callstack.com/newsletters/react-native-available-for-apple-vision-pro-february-community-updates) February 2024 We are thrilled to announce that React Native is now on Apple Vision Pro. Check the newsletter for more details! ### [Lens Protocol, Web3 and React Native Scalability](https://www.callstack.com/newsletters/lens-protocol-web3-and-react-native-scalability) January 2024 Check out the new episode of The React Native Show, and learn all about building social apps with Lens Protocol and React Native. Hire us ## Need React, React Native, or AI engineering expertise? Bring in senior engineers to build your product, solve technical challenges, or put agents to work across delivery. [Book consultation](https://www.callstack.com/contact) Insights ## Your next read or watch starts here Explore articles, interviews, and demos on React, React Native, and AI engineering, with lessons from the people building the tools. [View all](https://www.callstack.com/insights) - [Building a Software Factory: Write Specs an Agent Can Build From](https://www.callstack.com/blog/building-a-software-factory-write-specs-an-agent-can-build-from) (Nov 6 · Article): Learn how to research requirements, resolve open decisions, and write testable specs that AI coding agents can implement without the planning conversation. - [ Large-Scale Migrations With Coding Agents: Planning, Verification, and Rollback](https://www.callstack.com/blog/large-scale-migrations-with-coding-agents-planning-verification-and-rollback) (Nov 4 · Article): Plan codebase migrations with coding agents using reviewable requirements, verification checks, staged rollouts, and defined rollback criteria. - [Conversational Banking: From Customer Questions to Authorized Actions](https://www.callstack.com/blog/conversational-banking-from-customer-questions-to-authorized-actions) (Nov 2 · Article): Explore conversational banking architecture through a card-dispute example, covering tool access, authorization, execution, observability, and human handoff. - [How AI Agents Can Cut Manual QA by 30%](https://www.callstack.com/blog/how-ai-agents-can-cut-manual-qa-by-30) (Oct 30 · Article): Explore an agentic QA workflow targeting 30% less manual effort across mobile, web, and TV, with test selection, failure triage, and validation. - [Building a Software Factory: The Night My Agents Waited for Me](https://www.callstack.com/blog/building-a-software-factory-the-night-my-agents-waited-for-me) (Oct 28 · Article): Learn how permissions, review limits, and missing product decisions stalled two overnight coding agent runs, and how their maintainer revised the workflow. - [Your AI Coding Agent Still Needs an Architecture](https://www.callstack.com/blog/your-ai-coding-agent-still-needs-an-architecture) (Oct 22 · Article): Use explicit contracts, behavior tests, and dependency checks to guide AI coding agents and review their changes through a TypeScript favorites example. - [Who Left the Agents Running? React Native Software Factories](https://www.callstack.com/events/who-left-the-agents-running-react-native-software-factories) (Oct 15 · Live Stream): Join Kewin Wereszczyński and Szymon Chmal to explore what can go wrong in a React Native software factory overnight and the controls that keep agents on track. - [When Coding Gets Faster, What Breaks Next?](https://www.callstack.com/podcasts/when-coding-gets-faster-what-breaks-next) (Oct 14 · Podcast): Matt Hargett explains how AI moves bottlenecks across testing, deployment, infrastructure, support, and the rest of software delivery. - [MCP and Supervisor Agents in eBay's Monitoring Workflow With Leonel Candido da Silva](https://www.callstack.com/podcasts/mcp-and-supervisor-agents-in-ebays-monitoring-workflow-with-leonel-candido-da-silva) (Oct 13 · Podcast): Leonel Candido da Silva explains eBay's agentic monitoring workflow: specialized agents, MCP, PagerDuty reports, and plans to learn from past incidents. - [AI Agent Observability With Ivana Huckova and Sven Großmann](https://www.callstack.com/podcasts/ai-agent-observability-with-ivana-huckova-and-sven-grossmann) (Oct 12 · Podcast): Grafana's Ivana Huckova and Sven Großmann discuss AI agent observability, coding-agent costs, PR analytics, secret redaction, and local guardrails. - [Automating Mobile QA with Cloud Agents](https://www.callstack.com/events/automating-mobile-qa-with-cloud-agents-2) (Oct 7 · Talk): Michał Pierzchała shows how cloud-based QA agents can test real iOS and Android user flows and bring screenshots, recordings, and logs into pull requests. - [Can Jev Make AI Agent Decisions Faster?](https://www.callstack.com/events/can-jev-make-ai-agent-decisions-faster) (Oct 1 · Live Stream): Explore Jev with Kewin Wereszczyński and Szymon Chmal: how it works, its approach to faster agent decisions, and possible local alternatives. - [The Hard Way vs. The React Native AI SDK Way: Stop Writing Custom Modules for Every Model](https://www.callstack.com/tutorials/the-hard-way-vs-the-react-native-ai-sdk-way-stop-writing-custom-modules-for-every-model) (Mar 19 · Tutorial): Learn how React Native AI uses a unified provider model to switch between cloud and on-device LLMs without rewriting application logic, enabling reliable AI experiences online and offline. - [Build Smarter Apps: Tool Calling & AI Orchestration Explained](https://www.callstack.com/tutorials/build-smarter-apps-tool-calling-ai-orchestration-explained) (Mar 12 · Tutorial): Learn how on-device models in React Native can call tools, interact with external APIs, and return structured outputs you can use directly in application logic. - [MLC LLM + React Native: On-Device AI Without the Pain](https://www.callstack.com/tutorials/mlc-llm-react-native-on-device-ai-without-the-pain) (Mar 5 · Tutorial): Learn how to run third-party on-device LLMs in React Native using MLC LLM. Choose your models, run them efficiently across platforms, and keep a unified JavaScript API with React Native AI. - [Intelligent Fallbacks with Apple Intelligence in React Native](https://www.callstack.com/tutorials/intelligent-fallbacks-with-apple-intelligence-in-react-native) (Feb 24 · Tutorial): Learn how to use Apple’s built-in Foundation Models in React Native apps, reduce memory usage, and enable fast, fully on-device AI with React Native AI Apple. - [What Is the React Native AI SDK? A Complete Intro & Quickstart](https://www.callstack.com/tutorials/what-is-the-react-native-ai-sdk-a-complete-intro-quickstart) (Feb 10 · Tutorial): Learn why on-device AI matters for React Native apps, how local LLMs behave offline, and what problems React Native AI is designed to solve from day one. - [Implementing an Android TurboModule with Kotlin](https://www.callstack.com/tutorials/implementing-an-android-turbomodule-with-kotlin) (Jan 29 · Tutorial): Learn how to implement a React Native TurboModule on Android, from the TypeScript spec and Codegen to the Kotlin implementation and package registration. - [Working with Different Threads in Swift TurboModules](https://www.callstack.com/tutorials/working-with-different-threads-in-swift-turbomodules) (Jan 19 · Tutorial): Learn how JavaScript, native module, background, and main threads interact in React Native TurboModules, and how to use GCD queues to run async work safely in Swift. - [How to Add Type-Safe Constants to Swift TurboModules](https://www.callstack.com/tutorials/how-to-add-type-safe-constants-to-swift-turbomodules) (Jan 9 · Tutorial): Learn how to expose typed, immutable constants from a Swift TurboModule using Codegen, and get full end-to-end type safety between native and JavaScript. - [Adding Event Emitters to Your TurboModule in Swift](https://www.callstack.com/tutorials/adding-event-emitters-to-your-turbomodule-in-swift) (Dec 30 · Tutorial): Learn how to emit native events from a Swift TurboModule and subscribe to them in JavaScript, including proper memory management and Codegen integration. - [Writing Your First TurboModule in Swift](https://www.callstack.com/tutorials/writing-your-first-turbomodule-in-swift) (Dec 22 · Tutorial): Learn how to build a fully working TurboModule in Swift, integrate it with Codegen, and bridge it through Objective‑C inside an Expo app.