Due to some issues with 2 versions of rtorrent. 2 older versions will be banned in a week from today.
rtorrent/0.9.3/0.13.3 (* rtorrent-0.9.3 * libtorrent-0.13.3)(Unstable)
rtorrent/0.9.4/0.13.4 (* rtorrent-0.9.4 * libtorrent-0.13.4)(Stable)
will both be banned.
To give time to migrate; it is recommended to update your client so you are not surprised and left unable to leech or seed.