A hands-on Reassure guide for React Native and Expo: Jest setup, measurePerformance vs measureFunction, CI baseline diffs, and a Danger.js budget that actually catches regressions before merge.
react-native-mmkv v4 is now a Nitro Module - synchronous, JSI-backed, and roughly 30x faster than AsyncStorage. This 2026 guide covers how MMKV works, real benchmark numbers, install steps for Expo and bare React Native, encryption, and a complete AsyncStorage migration path.
FlashList v2 is a ground-up rewrite of Shopify's high-performance list for React Native's New Architecture. No size estimates, JS-only, pixel-perfect scrolling, and new hooks like useRecyclingState. Complete Expo guide, v1 migration walkthrough, and head-to-head comparison vs FlatList in 2026.
Learn how to reduce your React Native Expo app size by 30–70% using Expo Atlas bundle analysis, Metro tree shaking, image optimization, Android App Bundles, and CI monitoring. Practical guide with working code examples.
A practical guide to every debugging tool in the React Native ecosystem — from DevTools and the 0.83 Performance Panel to Radon IDE, memory profiling, native crash diagnosis, and production monitoring with Sentry.
React Native 0.79 delivers Metro 0.82 with 3x faster startup, 12% faster Android app launch with uncompressed bundles, simplified native module registration, and JSC community migration. Here's everything you need to know, plus a step-by-step upgrade path.