You already know how to change FontAwesome icons. You can check FontAwesome icons version using Firebug. Please check the screenshot below:
In order to updateFontAwesome icons version, please do the following:
Connect to your server using FTP or hostingCpanel.
Navigate to wp-content/themes/theme##### folder (where ##### is your theme number). Open file called style.css in any code editor on your computer (Recommended software: Dreamweaver or Notepad).
This tutorial shows how to change website scroll speed in Wordpress.
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