CSS Versioning for iThemes Builder ensures your visitors get up-to the minute stylesheets

Add the following two functions to your iThemes Builder child theme once you take the site live. This function is best used on live production sites.

// Force CSS file Reload when changed
// disable loading the default stylesheet
function rec_custom_filter_disable_theme_stylesheets( $disable ) {
return true;
add_filter( 'builder_filter_disable_theme_stylesheets', 'rec_custom_filter_disable_theme_stylesheets', 20 );

// add the versioned stylesheet
function rec_custom_add_new_stylesheet() { ?>
<link rel="stylesheet" href="<?php bloginfo('stylesheet_url'); echo '?' . filemtime( get_stylesheet_directory() . '/style.css'); ?>" type="text/css" media="screen, projection" />
add_action( 'builder_add_stylesheets', 'rec_custom_add_new_stylesheet' );