This is off topic but important!
Anyone that manages any sites on Joomla 3.4.4, please update to 3.4.5 if you haven't already, as this fixes a major security vulnerability.
If I done changes in the template file, which is index.php of Protostar template, then what I can I do ? As, updating joomla would replace my this file as well. Please give your suggestions on what can be done, which doesn't effects my website look and functionality.