Kubuntu is an official flavour of the Ubuntu operating system which uses KDE Plasma Desktop instead of the popular GNOME desktop environment. Every package in Kubuntu shares the same repositories as Ubuntu and it is released regularly on the same schedule as Ubuntu.
New Feature: Hybrid Torrents
Hybrid torrents support the BitTorrent V1 and V2 protocol. Its support is not well spread out yet so we recommend that you still use v1 (aka the "torrent" column).