+- inc(1) and msgchk(1) now support TLS encryption natively.
+- Support for SMTPUTF8 (RFC 6531) has been added. mhshow(1) already supported
+ RFC 6532, assuming all 8-bit message header field bodies are UTF-8 and use
+ of a UTF-8 locale.
+- Added welcome message when nmh detects that its version changed.