Magento Community Edition 1.9.1 empowers merchants to deliver compelling shopping experiences by offering enhanced responsive design capabilities, new swatches to display product variations, and improved performance through support for MySQL 5.6 and PHP 5.5. It also includes support for Google Universal Analytics and over 70 product improvements. Find out more at http://magento.com/blog/magento-news/magento-community-edition-191-now-available-download