That is inconvenient indeed. It shouldn’t be too hard for them to reintroduce it or have a ‘show unread’ button in the screen. At the moment it’s just in bold with a green sidebar. But not as bad as the prospective loss of threadmarks would have been, I think.We're all missing the most egregious change, which is the removal of the all unread updated threads you're watching button. Now that, is inexcusable.
I also miss the exact numbers for views on each AAR now being rounded, but that is pretty minor.