Comment 1 for bug 139789

from markybob in the deluge-torrent forums,

just putting the word out that if you've had upnp problems with deluge, you should try svn trunk revision 1702 or higher. there have been various bug fixes in the upnp department and i think that it should work for most of you who've had issues.
and please, for the love of all that is holy, make clean prior to compiling.

So this looks like 0.5.5.1 or later