If you are unsure which version of InCopy you have installed you can find out by opening Adobe InCopy and selecting "About InCopy".
On a Mac this is found below the "InCopy" menu next to the Apple icon.
On a PC this option is found beneath the "Help" menu at the far right of the menu bar.
You will also see the version number in the window that appears while the application is loading. See image above.
After selecting "About InCopy/InDesign" you will see the following screen which displays the version you are using and below that the exact version number. (Users of CS6 should currently have 8.1 or higher.)