I'm not shure if this is new in Logos 5 but I think so.
There is a new option in the window lable to close an open window(#1 in the screendump below). I love this one because it's obvious which window a click will close.
I think there is no need any longer to have the "old" close button (#2 in the screendump). This old one is sometimes accidently causing wrong window to get closed.
