4.4 REST for large files
4.5 ASCII support
4.6 GSSAPI via Windows SSPI
+ 4.7 STAT for LIST without data connection
5. HTTP
5.1 Better persistency for HTTP 1.0
via third-party GSS-API libraries, such as Heimdal or MIT Kerberos, also add
support for GSSAPI authentication via Windows SSPI.
+4.7 STAT for LIST without data connection
+
+Some FTP servers allow STAT for listing directories instead of using LIST, and
+the response is then sent over the control connection instead of as the
+otherwise usedw data connection: http://www.nsftools.com/tips/RawFTP.htm#STAT
+
+This is not detailed in any FTP specification.
+
5. HTTP
5.1 Better persistency for HTTP 1.0