FlashList v2: A ground-up rewrite for React Native's New Architecture (2025) - Shopify

FlashList v2 is a ground-up rewrite for React Native's New Architecture, eliminating the need for item size estimates and native dependencies. It achieves precise scrolling and improved horizontal list support through progressive rendering, predictions, and corrections within `useLayoutEffect`. The new architecture enables synchronous layout measurements, leading to faster load times and smoother scrolling. Advanced features include improved scroll position maintenance, masonry support, and control over the recycle pool.