Kubuntu came about when Ubuntu switched to the Unity desktop environment as a KDE based alternative, which as Linux.com points out caused much disgust due to bugs at launch and a less than attractive interface.  The newest version now uses the Plasma 5 environment, the first release to do so, replacing version 4 which has been in use almost decade now.  This distro still uses Dolphin as its file manager but now uses Simple Desktop Display Manager (SDDM) instead of KDM.  It also incorporates systemd, with these two changes users of Arch Linux will feel right at home.  Check out the review for a list of the programs it ships with as well as the ones that Linux.com added after the fact to make Kubuntu work best for their machines.

"The latest version of Kubuntu, 15.04, aka Vivid Vervet was released last week and it's available for free download. With this release it has become the first major distro to ship Plasma 5 as the default desktop environment."

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