This first release candidate of GhostBSD 18.10 is the first official release of GhostBSD with TrueOS under the hood. The official desktop of GhostBSD is MATE. However, in the future, there might be an XFCE community release, but for now, there is no community release yet.
What has changed since 11.1
GhostBSD is now built from TrueOS instead of FreeBSD