Hello. It looks like this information havn't reached the board yet.
MusicBrainZ, 7Digital and a developper named Lukáš Lalinský have developped a new audio fingerprint format called Echoprint and it's open source. It will probably replace PUID that, according to this article on MusicBrainz blog is deemed to die sooner or later.
I thought this might be of interest to MediaMonkey developpers or script developpers, especially Trixmoto who has scripts for generating PUID and searching MusicIP.