- Highly customizable visual themes
- Support for grouping in main views
- Support for groups in Instant Messaging
- Global folders
- New attachment bar with preview
- Sidebar box can now be easily maximized
- Spam button added
- Advanced drag and drop and clipboard scenarios
- Export table data to CSV/HTML
- Two lines mode in contact roster
- Support for Simple MAPI
- Support for drag'n'drop text in editor
- Support for Delivery Receipts
- Rule settings improvements
- Improved CalDAV/CardDAV compatibility with Apple, Oracle Kerio, IceWarp and Sun