I don't use Confluence a lot of work, but when I do first of all I see a modal window informing me of new features, sometimes it keeps popping up many times on different pages, even though I clicked Ok once or whatever the button is.
My point is that Confluence should enable the user to quickly browse the document they are sent or required to go through. All the new features may be cool, but don't block content - we are here for it. Please find another way of informing users of new features.
Thanks.