Yes, if you store all your files in a user writeable folder (desktop, my documents folder, %appdata% folder, etc.) and you don't write to system-level registry or Start/Stop services, etc., then wyUpdate will be allowed to updates without requesting UAC permission.
For example, if you app is a few files and the app is installed to %appdata%\YourApp, then the user will update without needing admin permission.
Does that make sense?