There is no later version to update to.
uTorrent is a proprietary development (not open source) and therefore the only compiled Linux versions were provided by uTorrent in 2014. They have not updated these binaries since 2014.
Elegant, efficient torrent downloading
Default Port: 6880
Default User: admin
https Port: 6888
Not Compatible with Internet Explorer 11
Changes to `Put new downloads in` directory are not saved.
Changes to `Automatically load .torrents from` directory are not saved, and this option is disabled on restart.