How to Upgrade Wordpress
1. Download the newest version
2. Extract it
3. Back up your wp-config.php to a safe location (it’s the most important file)
4. Upload your newly extracted files to your current Wordpress location
*Note – I personally only overwrite the root folder, the wp-admin folder and the wp-includes folder. I don’t upload anything to my wp-content folder. That folder has your themes and plugins.
5. After you have copied everything, then point your browser here
http://www.yoursite.com/wp-admin/upgrade.php
6. The rest is magic
casthompson.com takes no responsibility if you screw up your blog! but seriously, it’s so easy a 5th grader can do it.
Official Upgrade Guide




