3.014 is ready for download.
3.014 now notifies the user of unsaved files referenced in a scene on exit.
3.014 does not mess up the undo feature when more than one instance of seamless is made.
As always make backups of any work you don't want to lose.
For more info on editing referenced files see:
Scenes Composed of Referenced Files:
http://www.seamless3d.com/scenes-composed-of-referenced-files/