I have uploaded postfix-2.11-20131126-nonprod to the master FTP site. This has revised DANE support as well as "advanced" master.cf query/update support. The postconf code has been tested, but the documentation is still rough.
Examples are at http://www.porcupine.org/postfix-mirror/wip.html and at the top of the RELEASE_NOTES file. Documentation is also in the postconf(1) manpage (nroff -man man/man1/postconf.1 | less). Wietse
