Sep 18, 2015

v1.8.4.2
- Fixed emoji display issue for Android 2.3 devices.

v1.8.4.1
- Removed background toast notifications when device is offline.
- Stability fixes.

v1.8.4
- Add attachment thumbnails to messages.
- Add open source licenses.
- Made logout actions consistent.
- Client-side migration to registration scheme using signed registration ids.
- Fixed false updates of messages as sent for Gingerbread.
- Multiple bug fixes.