It is. But I was amused when I encountered it and saw that it repeated design decisions made to cram AutoCAD into a DOS machine. Do they still have "redraw" and "regen?"?

Yes. I use qcad/librecad very infrequently.

But I used it for the first time for a renovation of my apartment in 2004 and it isjust great that when I was discussing a renovation with a neighbor I could still use it with the old files.