To update your theme to new version just add new and replace changed files.
Security Update - WordPress XSS Vulnerability security issue fix
Added - new default Google Fonts API key
Fixed - unserialize PHP error on frontend for theme Google Fonts API on some servers
style.css inc/class-tgm-plugin-activation.php
iPanel/classes/ipanel.class.php
Added - WooCommerce 2.3.x support
Added - New Visual Page Builder plugin version
style.css
js/template.js
woocommerce/single-product-reviews.php
woocommerce/single-product/product-thumbnails.php
woocommerce/single-product/add-to-cart/variable.php
inc/theme-functions.php
inc/plugins/woocommerce.2.3.3.zip
inc/plugins/js_composer.zip
DELETE all files from /woocommerce/cart/ folder in theme directory
DELETE woocommerce/single-product/rating.php file
woocommerce/cart/cross-sells.php
Added - New Visual Composer plugin 4.3.5 version
style.css
inc/theme-functions.php
inc/plugins/js_composer.zip
Fixed - Menu color with submenu item selected
style.css
inc/theme-functions.php
Fixed - Theme Admin Panel Google Fonts list not displayed after some time
style.css
iPanel/classes/ipanel.class.php
Install new Mega Main Menu plugin provided with theme (new plugin version located in inc/plugins/mega_main_menu.zip file).
Check plugin settings in Theme admin panel > Mega Menu.
Read new plugin documentation in MegaMainMenu Plugin Documentation folder inside full theme archive.
Check new Mega Menu section in theme Documentation.
Update WooCommerce Ajax Search plugin from /inc/plugins/yith-woocommerce-ajax-search.100.1.1.1.zip file
Added - New Premium Mega Main Menu plugin
style.css
responsive.css functions.php header.php js/template.js
inc/theme-functions.php
iPanel/options.php iPanel/assets/css/styles.css iPanel/classes/ipanel.class.php inc/plugins/mega_main_menu.zip inc/plugins/yith-woocommerce-ajax-search.100.1.1.1.zip
Go to Plugins and update your WooCommerce plugin to 2.2.2 version if you don't do this before
Fixed - WooCommerce 2.2.2 issues
style.css
remove folder - woocommerce/checkout/
remove folder - woocommerce/myaccount/
remove folder - woocommerce/order/
Added - WooCommerce 2.2.2 version support
Added - New Visual Page Builder plugin version 4.3.4
Added - New Revolution slider version 4.6
Fixed - Category description text layout
Fixed - "Item/Items" string translation in top minicart
style.css
js/template.js
inc/theme-functions.php
/inc/plugins/woocommerce.2.2.2.zip
/inc/plugins/js_composer.zip
/inc/plugins/revslider.zip
remove file - woocommerce/global/breadcrumb.php
remove file - woocommerce/loop/orderby.php
remove file - woocommerce/loop/pagination.php
Fixed - Checkout page shipping method selection checkboxes overflow issue
Fixed - Layout issue on products search page if no products was found
Fixed - iOS devices button styles
woocommerce/archive-product.php
js/template.js
style.css
Added - New WooCommerce version 2.1.11 support
Added - New Visual Page Builder version 4.2.3
Added - New QuickVIew plugin version
Added - New menu animations, mini cart animation
Fixed - Footer Social icons display problem with disabled Twitter
Fixed - Style fixes
Fixed - QuickView add to cart now update cart widget data
Fixed - Author info block layout
inc/theme-functions.php
inc/plugins/woocommerce.2.1.11.zip
inc/plugins/js_composer.zip
inc/plugins/js_composer.zip
inc/plugins/woo_quickview.zip
js/template.js remove woocommerce/emails/
author-bio.php
footer.php
css/animations.css
style.css
Added - WooCommerce 2.1.9 plugin version
Added - Ajax Search with autosuggestions
Added - Product QuickView feature
inc/theme-functions.php
inc/plugins/woocommerce.2.1.9.zip inc/plugins/yith-woocommerce-ajax-search.1.1.1.zip inc/plugins/woo_quickview.zip
css/animations.css
header.php
style.css
Added - WooCommerce 2.1.8 plugin version support and updated plugin files
Added - New VIsual Page Builder 4.1.3 version
Added - New Revolution Slider 4.3.8 plugin version
Added - New Contact Form 7 3.8.1 plugin version
Added - Dribbble social icon support for footer social icons
Fixed - SKU update for Variable products
inc/theme-functions.php
inc/plugins/woocommerce.2.1.8.zip inc/plugins/js_composer.zip
inc/plugins/revslider.zip
inc/plugins/contact-form-7.3.8.1.zip
woocommerce/checkout/review-order.php woocommerce/single-product/meta.php
iPanel/options.php
style.css
Added - New VIsual Page Builder version with WP 3.9 support
inc/theme-functions.php inc/plugins/js_composer.zip
style.css
Added - Support for Cyrillic Russian Google fonts (New admin panel option in Fonts tab)
Added - New VIsual Page Builder version
Added - New Contact Form 7 plugin version
Added - New Translation Manager plugin version
Fixed - Footer Social icons display bug
Fixed - Deleted unused Twitter options in control panel
iPanel/assets/css/styles.css
iPanel/options.php
footer.php
inc/theme-functions.php inc/plugins/js_composer.zip
style.css
Fixed - Responsive fixes
responsive.css
style.css
Added - New WooCommerce 2.1.7 version
Added - New admin panel option to hide top menu Cart dropdown box
Fixed - Incorrect float on product page for products without description
inc/plugins/woocommerce.2.1.7.zip
inc/theme-functions.php
woocommerce/single-product/add-to-cart/grouped.php
woocommerce/content-single-product.php
iPanel/options.php
header.php
style.css
Fixed - Footer Payment/Social icons display bug
iPanel/options.php iPanel/assets/css/styles.css footer.php
Initial release