For Word Press 3.7+, you don’t have to lift a finger to apply minor and security updates.
To update Word Press, click the link in this message.
There are two methods for updating - the easiest is the one-click update, which will work for most people.
This means if there are any issues you can restore your website.
Complete instructions to make a backup can be found in the Word Press Backups section of the Codex.