6.3 version on DL appliance

Hi, I start the update from 6.2.1 to 6.3 on my replication core which is a DL4300 appliance and I got a warning that the installer will convert the dl appliance in software core. I try to read more about it but I didn't find anything. What does it means? Is it that my appliance will be considered like a "normal" machine like any server and I will need to manually update the driver or stuff like that?

Thanks for your help