Facebook has updated their Events section. There are some user interface enhancements.
The biggest change is the options presented to people invited for the events.
They now get the ability to decline the event in addition to blocking future invites from the sender.
Previously, user had to select Not Going option which was an absurd response for an invitation.
Facebook Event pages no longer show the list of people who have declined (not going) the event. You do get to see the list of people who have selected Join and Maybe.