Message now asks if you wish to remove "(was: <old subject>)" from
subject lines (see `message-subject-trailing-was-query'). C-c M-m and
C-c M-f inserts markers indicating included text. C-c C-f a adds a
-X-No-Archive: header. Improved crosspost follow behaviour with
-`message-cross-post-*'.
+X-No-Archive: header. C-c C-f x inserts appropriate headers and a
+note in the body for cross-postings and followups (see the variables
+`message-cross-post-*').
** References and X-Draft-Headers are no longer generated when you
start composing messages.