The newest version is 3.3.9.205. You might have to delete the old plugin, located in /Library/Internet Plug-Ins, before installing this new version as the installer doesn't appear to correctly overwrite the old one.There doesn't appear to any improvement whatsoever over the previous version. The plug-in still doesn't work properly with a second display; it will only go full screen on the main monitor (the one with the menu bar), and even if you switch to the menu bar to the second display (using a utility such as SwitchRes) it still won't be centered properly in full screen.There is also a problem with the aspect ratio. You can't re-size the view without distorting the image instead of simply clipping it as would happen in the old Slinbox client.The is overall a poor effort, with little attention given to functional detail.I'm actually lowering my rating as there appears to have been to effort to correct glaring issues.Stick with the old application, even though the image quality will suffer a little.