title: How to upgrade self-hosted wordpress and installed plugins of live site to latest available versions without facing any trouble?
body: <p>I have to upgrade a running wordpress site's wordpress CMS and some installed plugins.and some plugins which i want to upgrade has been modified before to achieve something.</p>
  
  <p><a href="http://easycaptures.com/fs/uploaded/288/9522279160.png" rel="nofollow noreferrer">http://easycaptures.com/fs/uploaded/288/9522279160.png</a></p>
  
  <ul>
  <li>How to upgrade Wordpress to latest
  without loosing anything, any post,
  comments?</li>
  <li>What precautions should i take?</li>
  <li>How should i take backup of all
  things?</li>
  <li>Should i take backup of database
  also?</li>
  <li>How to upgraded modified plugins
  without loosing functionality?</li>
  </ul>