+- All nmh commands now support transactional locking for sequence files.
+- There is no longer a per-folder maximum number of sequences.
+- For the SMTP MTA TLS can now be negotiated at the beginning of the
+ connection with the -initialtls switch.
+- Messages can now be selected using a relative offset from some other
+ message, or from the start or end of a sequence. See mh-sequences(5).
+- The -changecur and -nochangecur switches have been added to mhlist(1).
+- mhbuild(1) can now encode 8-bit message headers using RFC-2047 encoding
+ rules.
+- The whatnow(1) attach feature will determine the content type of an
+ attachment using a program such as file --mime-type, if available at
+ configuration time. If not, it will use mhshow-suffix- entries as
+ before. The -v switch to attach causes it to display the mhbuild
+ directive that send(1) will use.
+- mhbuild(1) now supports the -auto/-noauto flags (to be used by send(1)
+ when invoking mhbuild automatically).
+- mhbuild(1) now is automatically run by send, to insure that all outgoing
+ messages have proper MIME formatting.
+- A new header, "Attach", is supported by mhbuild; it is used to replace
+ previous functionality (which by default used a header named
+ Nmh-Attachment).