There have been a few updates and additions since RC1. Check the changelog for these changes.
About GhostBSD: GhostBSD is a user-friendly, FreeBSD based operating system, featuring the GNOME- and LXDE desktop environments. GhostBSD is aimed at home and office users and comes therefore with a graphical user interface and installer. GhostBSD can be used as a live CD or installed onto a hard disk.