Ruote (OpenWFEru) 0.9.19 was just released.
It's a open source (BSD) Ruby workflow / BPM engine.
The details of the release :
http://jmettraux.wordpress.com/2008/09/09/ruote-0919-released/
The formal RELEASE.txt :
http://github.com/jmettraux/ruote/tree/r0.9.19/RELEASE.txt
web : http://openwferu.rubyforge.org
forge : http://rubyforge.org/projects/openwferu
source : http://github.com/search?q=ruote
demo : http://difference.openwfe.org:3000/
Cheers,
John