* Torrents you already downloaded have lighter text color in the torrent listings on /torrent/ . Also on the detail page of a torrent you see clearly if you have downloaded the torrent.
* Usernames in torrent listing are clickable
* Per torrent 'Traffic' statistic added on the torrent detail page.
* Active sessions / Uploaded torrents of a user are visible on their profile pages
We are currently testing our new (more efficient) tracker software. Currently it is only supported by recent utorrent and recent libtorrent clients. Dont worry though the old tracker will be used as fall back, so there wont change much for you guys.
However we may temporarily disable the old tracker on high traffic peaks, for example when the new tour gets underway.