If the alist entries are added, they override the value of
`menu-bar-mode'/`tool-bar-mode'.
-** Mouse dragging is not any differently from active regions.
-The internal variables `mouse-drag-overlay', and the internal function
-`mouse-move-drag-overlay' and `mouse-show-mark', have been deleted.
+** Regions created by mouse dragging are now normal active regions,
+similar to the ones created by shift-selection. In previous Emacs
+versions, these regions were delineated by `mouse-drag-overlay', which
+has now been removed.
\f
* Lisp changes in Emacs 24.1