Release 3.0.0

3.0.0 (2024-08-27)

react-native-mmkv V3 is now stable!!! 🎉🥳

V3 is a complete rewrite of the react-native-mmkv codebase to make it a pure C++ TurboModule (which has a better startup speed), and now shares a single codebase across iOS and Android for consistency 👏

Important

react-native-mmkv 3.0.0 requires react-native 0.74 or higher!

✨ Features

• Fully rewrite react-native-mmkv to a single pure C++ / CxxTurboModule 🫴 (#656 / 87dedcd / 660cda3)
• Add trim() func and size property (b2d80fa)
• BREAKING: Use ArrayBuffer instead of Uint8Array in getBuffer (c03ef4d)
• BREAKING: Properly throw errors if set or recrypt failed (#706) (0fde8a5)
• Support AppGroups 🚀 (#705) (5a63632)
• Add Automocking in vitest (#666) (86d5e94)
• Support 16KB page size on newer Android phones 🥳

🐛 Bug Fixes

• Fix encryption not working on keys longer than 10 characters 🔥
• Fix closing destroy (3c2babd / 6eacc14)
• Only generate C++ bindings, skip Java/ObjC (e89a472)
• Use FORCE_POSIX to force C++ (8fa5ec7)
• Always trim, remove WeakRef (6dfc8e1)
• Only log Warnings or Errors in Release (cb5347b)
• Increase heap (ac130f8)
• Throw error if TurboModules are not found (8770d5d)
• Use isTest (57a4545)
• Eagerly initialize TurboModule because Proxies are slow (#671) (d1f9a1a)

💨 Performance Improvements

• Make react-native-mmkv a CxxTurboModule - faster, and less initialization overhead/complexity!
• Clear memory cache on trim and dtor (c01acb5)

📚 Documentation

• Update Jotai wrapper documentation - remove the double JSON.stringify() and JSON.parse() (#661) (ff26c4e)