React Native 0.84 - Hermes V1 Default, Faster iOS Builds & Legacy Arch Removed

React Native 0.84 just dropped and it's a BIG deal. In this video, I break down everything you need to know about the most performance-focused release in React Native history.

⚡ Hermes V1 is now the DEFAULT JavaScript engine — and your app just got faster without touching a single line of code.

🔥 What's covered in this video:
00:00 — Intro: Why 0.84 is a turning point
01:20 — Hermes V1 explained: What changed under the hood
04:15 — Precompiled iOS Binaries: Say goodbye to slow clean builds
07:30 — Legacy Architecture is GONE (and why that's great news)
11:00 — Node.js 22 is now required — what you need to do
13:45 — Hidden gems: HEIC support, keyboard events, URL API fixes
16:00 — Accessibility upgrades you need to know
18:20 — How to upgrade your project today
20:00 — Final thoughts & what's coming in 0.85

📦 Upgrade command:
npx @react-native-community/cli@latest init MyProject --version latest

📖 Official Blog Post:
https://reactnative.dev/blog/2026/02/11/react-native-0.84

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Видео React Native 0.84 - Hermes V1 Default, Faster iOS Builds & Legacy Arch Removed канала CodeSprint Lab