wordpress is the most commonly and world wide use blogging software. To keep the software secure and updated with the latest feature it is necessary to up[grade the software to the latest release.
Most of the time, while upgrading the wordpress blog it is being screwed up by the users. If you follow the steps that I have mentioned you can upgrade wordpress with minimum risk.
To upgrade wordpress you will need to first install “Wordpress Automatic upgrade” plugin which will make you your upgrade smooth and easy.
Before starting to upgrade backup all your wordpress files and database.
You can download plugin from URL: http://www.wordpress.org/extend/plugins/wordpress-automatic-upgrade/
Extract zip file and upload it under wp-content/plugins/ directory on server.
now activate the newly installed plugin and de-activate all old plugin if available.
Now just select upgrade wordpress from wordpress admin area and within few clicks your blog will be upgraded to latest version.