#React React Fast Refresh 通过“编译期注入签名 + 运行时家族表 + 内核 reconciler 协同”实现组件级、状态保持的热重载，是 Web 与 RN 通用的官方下一代热更新方案。

https://leapcell.io/blog/react-fast-refresh
Leapcell
React Fast Refresh: Next-Gen Hot Reloading Explained | Leapcell
React Fast Refresh: Next-Gen Hot Reloading Explained | Leapcell
A technical breakdown of Fast Refresh, React’s modern approach to hot reloading and component updates.