In order to check which version of the Leading2Lean Software you are running, simply use the login url for your site and add version at the end like this format below for example and once entered, it will display the version number.
https://l2l.leading2lean.com/version/
If you are instead interested in which mobile application version you are running, please select the "... More" option and then select the "About" option to confirm which mobile app version is running on your device.