Wordpress Automatic Upgrade is a plugin from Techie Buzz that allows a user to automatically upgrade the wordpress installation to the latest one provided by wordpress.org using the 5 steps provided in the wordpress upgrade instructions.

Wordpress automatic upgrade upgrades your wordpress installation by doing the following steps.

1. Backs up the files and makes available a link to download it.
2. Backs up the database and makes available a link to download it.
3. Downloads the latest files from http://wordpress.org/latest.zip and unzips it.
4. Puts the site in maintenance mode.
5. De-activates all active plugins and remembers it.
6. Upgrades wordpress files.
7. Gives you a link that will open in a new window to upgrade installation.
8. Re-activates the plugins.

The plugin can also can be run in a automated mode where in you do not have to click on any links to go to the next step.