** auto-mode-case-fold is now enabled by default.
+** Mail changes
+
+The default of `send-mail-function' has changed from
+`sendmail-send-it' (on GNU/Linux and other Unix-like systems) or
+`mailclient-send-it' (on Windows) to `sendmail-query-once'. This new
+default will ask the user (once) whether to use the internal smtpmail
+package to send email, or to use the old, external defaults.
+
** smtpmail changes
-** smtpmail has been largely rewritten to upgrade to STARTTLS if
+*** smtpmail has been largely rewritten to upgrade to STARTTLS if
possible, and uses the auth-source framework for getting credentials.
The rewrite should be largely compatible with previous versions of
smtpmail, but there are two major incompatibilities:
-** `smtpmail-auth-credentials' no longer exists. That variable used
+*** `smtpmail-auth-credentials' no longer exists. That variable used
to be be either ~/.authinfo (in which case you won't see any
difference), but if it were a direct list of user names and passwords,
it will be ignored, and you will be prompted for the user name and the
machine mail.example.org port 25 login jim password s!cret
-** Similarly, `smtpmail-starttls-credentials' no longer exists. If
+*** Similarly, `smtpmail-starttls-credentials' no longer exists. If
you had that set, then then you need to put
machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert