a. I'm wondering for some software if it is wiser to install them from sources or from official repositories when available like: glpi inventory fusion inventory monitoring tools like nagios I tried both for glpi: compiled from sources and installing from repositories. I also installed zabbix from sources. b. What about new software releases providing enhancements: is it better to keep the release installed from the repositories /compiled or is their a 'best practice' like downloading the new software release and compiling it again (I really have no clue)? Could someone make it more clear for me? Thanks!