Things to add to the release notes for the next full release:
-- SASL security layers (encryption) are now supported for the SMTP MTA.
-- You can now select the SMTP server and port from either "send" or a
- user's mh_profile (you could always select the server; that option is
- now documented). These are available via the -server and -port switches.
-- All networking code has been modified to use the new networking APIs
- (getaddrinfo and friends). All networking code (with the exception of
- the ftp client) now supports IPv6.
-- Support for prefixing a \01 in the "servers" entry in mts.conf to
- connect to all servers on a particular named net has been removed.
+Backward incompatibilities:
+- Changed exit status of each nmh command's -version and -help
+ switches from 1 to 0.
+
+- The following environment variables were deprecated in nmh 1.5
+ and are removed from this release:
+ MHPOPDEBUG (use -snoop command line switch instead)
+ MM_NOASK (use -nolist and -nopause command line switches instead)
+ NOMHNPROC (use -nocheckmime command line switch instead)
+ FACEPROC (undocumented faceproc feature removed)