ze::$cVersion
When an admin or a visitor is looking at a content item, this contains the version of a content item which is currently in view.
In visitor mode this will always be equal to the ze::$visitorVersion variable.
Anywhere in your PHP or JavaScript code. From Zenario 7.0.0 onwards.
Note that this variable is only available in JavaScript on the client when in admin mode; it will be undefined in visitor mode.