Please, give an example of creating a file for torrent's update. For a better understanding, show it in the form of a standart torrent file with its update link and the following processes ( copy the update link, paste in utorrent3.4, update the torrent file). Previously the authors of utorrent discussed this option and gave some links for sites's pages with examples of updating Almost all of them don't open now exept one with an update link. This link has the code: { "message": "no update", "success": true } In the instruction for this option everything is in another way: "announce": ..., "info": { "originator": com.bittorrent's DER encoded x.509 certificate, "update-url": "http://www.bittorrent.com/update-feed", ... }, "signatures": { "com.bittorrent": { "signature": info dict signature, }, ... } } I want the option works on my computer in a proper way and don't understand what I should choose or make. --------------------------- Please, give a piece of advice. Can I create a link for isp.fqdn and place it in 127.0.0.1.Some sites don't write tracker's addresses in magnet links, for example btdigg.org. If I can create a link for isp.fqdn, all running torrents in my torrent-client can get global tracker's address ( for instance udp://tracker.openbittorrent.com:80/announce or any other)