You may check the version of the RMS software you are using by selecting "About" from the software menu.

On Windows versions of our software, select "about" from the "help" menu.

On Mac systems, click on the Software's name in the menu bar, and select "about"

It is important to note that the build number is the primary method used to distingush between software versions. Below, you can see the version of Sinfonia in the screenshot is "29655".

If you're looking to update, here's how!