Apple released the Final Release of MAC OS X 10.11 El Capitan on the 30th of September. Due to some compatibility problems in the Final Release of the MAC OS X 10.11 we strongly recommend that until further notice you don’t update your OS to Mac OS X 10.11.
For more information on current problems and recommendations: http://helpcenter.graphisoft.com/technotes/operating-systems/mac-os-x-10-11-el-capitan-beta/
A Temporary Compatibility Update is available for those who already Updated their OS:
- ArchiCAD 19 (Build 4006) http://www.graphisoft.com/downloads/archicad/updates/AC19/AC19-3003to4006-ReleaseNotes.html
- ArchiCAD 18 (Build 7000) http://www.graphisoft.com/downloads/archicad/updates/AC18/AC18-6000to7000-ReleaseNotes.html