1. You click a link to upgrade – WordPress 2.7.1 is available! Please update now
2. You see the instruction for upgrading –
3. And it installs in no delay –
Downloading update from http://wordpress.org/wordpress-2.7.1.zip
Unpacking the core update
Verifying the unpacked files
Installing the latest version
Upgrading database
WordPress upgraded successfully
The term Software is evolving.