Make a theme backup before updating theme.
To update your theme to new version just add new and replace changed files.
Fixed FATAL ERRORs due to newline character missing issue in illusion/archive.php, illusion/comments.php, illusion/content-audio.php, illusion/content-gallery.php, illusion/content-link.php, illusion/content-none.php, illusion/content-quote.php, illusion/content-video.php, illusion/index.php, illusion/swpf/nav_menu_walker.php, illusion/swpf/widgets/swpf-dribbble-widget.php, illusion/swpf/widgets/swpf-flickr-widget.php, illusion/swpf/widgets/save_subscribe.php files.
Fixed CSS required characters escaping & create invalid css rules issue illusion/css/custom_style.php file.
Fixed accept cookie top bar overlap issue on top menu area illusion/functions.php file.
We have updated and added some rules illusion/style.css file due to gravity form field styles, top menu multilevel.
We have updated illusion/css/responsive.css file due to subscription form modal box issue on mobile devices .