Q4OS 1.8.4 comes almost two months after the release of the previous point release, and besides incorporating all the security patches backported from the upstream repositories of the Debian GNU/Linux 8 “Jessie” operating system series, it adds an exciting new feature, namely the integration of alternative desktop environments. Q4OS is one of the few Linux-based operating systems to be built entirely around the Trinity Desktop Environment (TDE), and open-source initiative to keep the spirit of the old-school KDE 3.5 desktop environment alive, and the new feature is implemented in the native Q4OS ‘Desktop Profiler’ utility.