This is the moment! Synology is going to launch their latest Disk Station Manager (DSM) version 6.0. The latest beta testing can be downloaded from their web site and you can refer to your specific models here in order to make sure if your model can use the latest version.

The latest disk station version contains a couple of major changes include Mail Services, Spreadsheet Collaboration Tools, improvement on their Note Station with charting features, and optimized 64-bit computing.