ruby 8000A ruby laser is a solid-state laser that uses a synthetic ruby crystal as its gain medium. The first working laser was a ruby laser made by Theodore H.Ruby 3.3.8 Released Posted by nagachika on 9 Apr 2025; Ruby 3.2.8 Released Posted by hsbt on 26 Mar 2025; Ruby 3.1.7 Released Posted by hsbt on 26 Mar 2025; Security advisories: