It has been some time since ARCHICAD 20 was released - and like previous versions, from time to time, GRAPHISOFT release updates. These updates perform maintenance on your installation and apply fixes for issues.
Updates are particuraly important right now as Apple have recently released their new Operating System macOS 10.12 Sierra.
To Check for Updates - launch ARCHICAD and go to Help> Check for Updates...
"We at Slichter Architects are glad to have BIM6x as our ARCHICAD provider. BIM6x provides prompt support and it is nice to know that when an issue comes up they make themselves available to quickly provide direction and insight in an effort to minimize our issue and maximize our production."
Chad Slichter, Slichter Architects
"BIM6x has been excellent to work with. Their proficient knowledge of the program have helped our firm with all ranges of questions. The response time has been diligent and much appreciated!"