The old name is still available as an alias.
** New display feature: focus follows mouse. If you set the variable
-x-autoselect-window to non-nil value, moving the mouse to a different
-Emacs window will select that window. The default is nil, so that
-this feature is not enabled.
+autoselect-window to non-nil value, moving the mouse to a different Emacs
+window will select that window (minibuffer window can be selected only when
+it is active). The default is nil, so that this feature is not enabled.
** The new command `describe-text-at' pops up a buffer with description
of text properties, overlays, and widgets at point, and lets you get