Batch number missing in version number in civicrm.php
You can get the more granular CiviCRM version data with:

$version_file = CIVICRM_PLUGIN_DIR . 'civicrm/civicrm-version.php';
if ( file_exists( $version_file ) ) {
    require_once $version_file;
    $civicrm_version = civicrmVersion();
}