If you haven't moved away from uTorrent yet, this is the time, I think.
qTorrent and Deluge are good free and open source alternatives. If you don't need that many functions, Transmission is totally fine.
@fortellerKtorrent is decent too.
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!