magnet:?xt=urn:btih:1e51250d2d346aaf4532790d6a9984a488b4e450&xt=urn:md5:87de0bfb113d8b400d72abc704a6ccbb&xl=18225&dn=changes-4.8.6&as=https://download.qt.io/archive/qt/4.8/4.8.6/changes-4.8.6&tr=http://bt.qt-project.org:6969/announce