It was first developed in 1986-1987 by Bruce Dawson, Colin Fox and Steve LaRocque who were working for CygnusSoft Software.
[1] It was the first Amiga text editor with an undo/redo feature[1] and one of the first Amiga programs that had an AREXX scripting port by which it was possible to integrate the editor with AREXX enabled C compilers and build a semi-integrated development environment.
[1] It is still one of very few text editors that support jerkyless soft scrolling.
[citation needed] It remained popular even after Commodore's bankruptcy in 1994.
In 1997 version 4 was developed by Olaf Barthel and was ported to MorphOS by Ralph Schmidt in 2000 and made available for users having the original CygnusED 4 CDROM.