+- Added -retainsequences switch to refile(1).
+- A new program, mhfixmsg(1), is included to rewrite MIME messages with
+ various transformations.
+- Added -[no]rmmproc switches to rmm(1).
+- Added support for Content-Disposition header (RFC 2183) to mhstore(1)
+ and mhn(1) when used with -auto.
+- All nmh commands now support transactional locking for sequence files.
+- The per-folder maximum number of sequences is now 59 on LP64 systems.