From the Dashboard (Windows/Mac)
You can see the Agent version for each computer from the Computers screen:
Locate the Agent Type and Agent Version columns in the displayed list of computers. Note: if you don't see these columns, click the Grid 
icon to add them to the dashboard.
Click a computer's name if you want to see more details about the computer.
From the Agent Installation Folder (Windows)
You can check the Agent installation folder on the local computer to locate the version number.
Note: If you see multiple agent versions in the Agent folder , the higher version is the latest version.
Hidden Agent installation folder:
C:\ProgramData\{4CEC2908-5CE4-48F0-A717-8FC833D8017A}\
Revealed Agent installation folder:
C:\ProgramData\Teramind Agent\
From the Agent Installation Folder (Mac)
On the Mac, the version information for both the Revealed and Hidden Agents can be found in the buildno file located inside the usr/local/teramind/agent/etc folder:
You can also use the cat command on the Terminal to view the file:
cat /usr/local/teramind/agent/etc/buildno
From the Revealed Agent UI (Windows/Mac)
You can also find the full version number (including the build number) on the Agent UI, near the bottom-left corner: