The "Custom" service has been moved, and is now an item called "Custom"
in the "Services" combo box. This simplifies the stream page of
auto-configuration and removes an unnecessary widget. Overall a minor
but nice slimline/improvement on user experience.
The auto-configuration wizard is designed to allow first-time or
novice/uneducated users or to set up video and encoding settings in a
very quick and easy way. It'll automatically perform a bandwidth test,
and/or test the user's video settings to determine the most ideal
settings for streaming and recording (assuming a 1-pc setup).