The latest version of civicrm no longer prints the version in the footer. Is this correct? How do I find the version I am running?
Another way from the API (4.7 onward) is to use the System.check API:
$result = civicrm_api3('System', 'check', array( 'name' => "checkVersion", ));
to get something like
Array ( [is_error] => 0 [version] => 3 [count] => 1 [id] => 5 [values] => Array (  => Array ( [name] => checkVersion [message] => CiviCRM version 4.7.2 is up-to-date. [title] => CiviCRM Up-to-Date [severity] => info [severity_id] => 1 [is_visible] => 1 [icon] => fa-cloud-upload [id] => 5 ) ) )