modified buffers, it saves the abbrevs too if they have changed. It
can do this either silently or asking for confirmation first,
according to the value of `save-abbrevs'.
+
++++
+** If the environment variable EMAIL is defined, Emacs now uses its value
+to compute the default value of `use-mail-address', in preference to
+concatenation of `user-login-name' with the name of your host machine.
\f
* Incompatible Editing Changes in Emacs 22.1