Since version 9.0, the KDE SC, customized to support tighter application integration and the .txz package management system, was no longer the only desktop environment supported by PC-BSD. While manual installation of other desktops such as Xfce and GNOME had been technically possible in earlier releases, none of these were supported in the earlier versions, and major functionality was lost when not using PC-BSD's special build of KDE SC. Starting with version 9.0, PC-BSD added other desktop environments, including GNOME, Xfce, LXDE, and MATE.