Neos\Neos\ViewHelpers\Backend\ConfigurationCacheVersionViewHelper::render PHP Method

    public function render()
    {
        $version = $this->configurationCache->get('ConfigurationVersion');
        if ($version === false) {
            $version = time();
            $this->configurationCache->set('ConfigurationVersion', (string) $version);
        }
        return $version;
    }