System 6.0.5

System 6.0.5 (Finder 6.1, System Software Update 6.0.5) was released on March 19, 1990 to support the Macintosh IIfx. This update included Color Quickdraw, as well as ImageWriter driver 5.2, LaserWriter driver 5.2, and LaserWriter driver 6.0.1, which supported Color Postscript on both Color and B&W LaserWriter printers.