Information about the new update can be found on the description page in the right sidebar .
In most cases update does not affect your settings or content but in any case please make a backup before any action and save your translation files. You can use All-in-One WP Migration plugin.

Manually Install the Update

You can download the latest version of the theme in your Envato account and install the theme again according to the documentation before this delete old version.

• Download the latest theme zip file from ThemeForest

• Extract it and locate comforto.zip

• Extract comforto.zip and locate the comforto/ folder

• Copy/Replace content of the comforto/ folder to the /wp-content/themes/comforto/ folder of your web site

NOTICE: If direct customizations have been made to the parent theme, they will be overwritten when the theme is updated. The recommended way to apply theme file customizations is to use a child theme.

Also you can use Envato Market plugin for automatic upgrade theme

Download, activate and configure the Envato Market plugin.
Please follow the instructions on the Envato website.

Also don’t forget to update the plugin Comforto Theme Functionality. If you do not have a message about the automatic update for this plugins then do the following steps.

To update this plugins you need:

• Navigate to the Plugins menu in your WordPress admin area.
• Deactivate plugin, delete it

• Go to Install Required Plugins

• Upload and install the new version

• Activate this plugin.