Smart feature means that it will tell you who is actually calling instead of a number. Same when u dail a number u don't know who it is.. For instance if I call a Rogers store, it will display it as " Rogers Plus" instead of just the number.
This is enabled via the settings - Advanced Features - Called ID and spam protection.
Firmware G955WVLU1AQDE is rolling in now, OTA. Some sites have it for download, but I don't see the Rogers CSC available for download yet. You could always download a different CSC firmware and then change the CSC, but it might wipe the phone (in which case, a backup / restore will be handy).