Please open CYMA and go to the Help menu. Choose "About CYMA". Look for a graphic that looks similar to the graphic below.
This is the latest version of CYMA. If any of the DLL's or version numbers in "About CYMA" are equal or greater than 22 then you have "CYMA Version 22" installed.
If any of the DLL's or version numbers in "About CYMA" are equal or greater than 21 then you have "CYMA Version 21" installed.
Version 20.x and below are no longer supported by CYMA. If you are on a Version 20 or lower, please contact CYMA to upgrade.