Zend\Version provides a class constant Zend\Version\Version::VERSION that
contains a string identifying the version number of your Zend Framework
installation. Zend\Version\Version::VERSION might contain “2.4.1”, for example.
- File issues at https://github.com/zendframework/zend-version/issues
- Documentation is at http://framework.zend.com/manual/current/en/index.html#zend-version