Torrent clients authorized on tracker !!

From this weekend, an announcement will be made to limit the different clients torrents. I made a list of authorized clients:
for WinXP/Vista/7 µtorrent 2.2.1 or qBittorrent for Win 8/8.1
for Linux qBittorrent or Transmission
for Mac µTorrent 1.5.x
for Androďd tTorrent Lite
for Seedbox libtorrent or rtorrent

all other clients will be banned from the tracker:
µtorrent >or< 2.2.1

unauthorized clients are now banned
It is not a question of whether such a customer is better than another but to limit the number of client versions on the torrent tracker and avoid technical problem.
Thank you for your understanding