Powerful, easy to use and secure diagramming tool at fair costs
See the documentation for your Release
3.7 Release Notes
If you browser crashes during diagram editing or you navigate back by mistake, when you go back into edit the diagram you'll be shown a preview of the last draft of that diagram. You can either set it to be the current version or discard it before continuing to the editor.
Pre March 25th 2014 installation users please see this post.