Transmission

As far as I can tell, that stable repository only contains the most recent version, not older builds like 1.83.

Where can I find older transmission builds for Ubuntu? The launchpad PPA doesn't keep the old builds and the packages are missing from my apt package cache. I'm looking for 1.83 for the Hardy LTS.

Both libtorrents have been able to stick in implementation of DHT.

Rasterbar's seems a little more complete than Rakshasa's.
See the source for both.

http://www.rasterbar.com/products/libtorrent/
http://libtorrent.rakshasa.no/