The FreeDOS Beta 9 distribution was released on 28 September 2004.
Codename
Unlike previous iterations in the FreeDOS Beta distributions, this version did not have a codename. The FreeDOS Beta 9 RC1 (release candidate 1) was the last distribution to use a codename.
History
This Wayback snapshot shows a news item dated "2004-09-29 05:43" that says "Bernd Blaauw has posted the FreeDOS Beta9 (Final)."
That news item was pulled from the Sourceforge news servers (we used their news posting service) and I'm pretty sure that their servers were GMT. I would have written that in US/Central, 6 hours ahead, so just shy of midnight on 28 Sep 2004. Assume 28 Sept is more correct, since that date shows up elsewhere on the Internet.
Release candidates
Service releases
Release notes
..add here..