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The latest version of the Wordpress blog engine is available. It is essential that you upgrade to this version to include the security fixes, and other improvements. For those of you that don’t have any idea to upgrade, this is your tutorial.

To begin, you must backup in case you make a mistake. Make sure you backup your entire wordpress directory including the .htaccess and also your wordpress database. If you are using Media Temple, you simple click backup, and you are good to go. If you are using another provider, they should have a one click backup tool.

I’m going to assume that you have installed your Wordpress in http://www.yourdomain.com/wordpress/

• Download the latest Wordpress version at http://wordpress.org/download/
• Deactivate ALL plugins - you must do this because not all plugins will work with the new version.
• Delete the old WordPress files on your site, but DO NOT DELETE
  • wp-config.php file;
  • wp-content folder; Special Exception: the wp-content/cache folder should be deleted.
  • wp-images folder;
  • wp-includes/languages/ folder–if you are using a language file do not delete that folder;
  • .htaccess file–if you have added custom rules to your .htaccess, do not delete it;
  • robots.txt file–if your blog lives in the root of your site (ie. the blog is the site) and you have created such a file, do not delete it.
• Upload the new files that you downloaded from Wordpress
• Run the upgrader: http://example.com/blog/wp-admin/upgrade.php
• Update Permalinks and .htaccess. Update your Permalink Structure and merge the custom rules, if necessary, into your .htaccess file.
• Install updated Plugins and Themes. Please review the list of Plugins that work in Version 2.0 and check if your Theme author has a new version.
• Reactivate Plugins
• Review what has changed in WordPress.