WordPress Automatic Upgrade Plug in (WAUP) is an amazing plugin that can quickly upgrade the blog to the latest version. It follows recommended process for WordPress Blog upgrade which includes backing up blog (WP files and database), deactivating plugins, replacing files with current versions and then reactivating plug-ins.
With the help of this plugin, Blog can be upgraded in minutes. Simply, follow the step by step process. You need to be running at least WordPress 1.5 to use the plugin for upgrade.
