** The minibuffer history of file names now records the specified file
names, not the entire minibuffer input. For example, if the
minibuffer starts out with /usr/foo/, you might type in /etc/passwd to
get
/usr/foo//etc/passwd
which stands for the file /etc/passwd.
Formerly, this used to put /usr/foo//etc/passwd in the history list. Now this puts just /etc/passwd in the history list.