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What we just announced at React Conf 1/ The New Architecture is now the ONLY supported Architecture for React Native. Starting with v0.82, you won't be able to opt-out from New Architecture anymore.

Removing the Legacy Architecture comes with clear benefits: - Smaller app bundles, up to 1Mb reduction - Faster from-source builds (from 300s to 140s on iOS) - Simpler mental model If you haven't enabled New Architecture yet, we recommend upgrading to 0.81, enabling, then moving to 0.82.

In recent months, we've seen several apps migrate to the New Architecture, to unleash better performance. One example is how @ShopifyEng was able to improve app launch on Android & iOS, while also reducing unnecessary re-rendering. shopify.engineering/react-nativ...

3/ DOM APIs React Native is also aligning more and more with the Web! Starting with 0.82, we've added support for imperative DOM APIs to inspect the tree as you would do on the Web. reactnative.dev/docs/elemen...

4/ Web Performance APIs and New Tooling It's easier than ever to understand your app's performance thanks to newly added Performance APIs from the web. These provide new runtime profiling capabilities, and work in both development and production builds.

And, coming later in React Native 0.83, you'll be able to profile and understand your app more intuitively, with native support for the Performance panel and Network panel in React Native DevTools.