Important fix, so please update your stores...
Step 4) In include/register.php
BEFORE...
Code:
// Check address book
if (isset($address_book)) {
INSERT...
Code:
// reCAPTCHA
if ($current_area == 'C' && $main != 'checkout' && $config['reCAPTCHA']['reCAPTCHA_enabled'] == "Y" && $config['reCAPTCHA']['reCAPTCHA_site_key'] && $config['reCAPTCHA']['reCAPTCHA_secret_key']) {
include $xcart_dir . '/modules/reCAPTCHA/recaptcha_check_register.php';
}
// /reCAPTCHA