Kubuntu 16.04 has been release an announced by Kubuntu Development Team, this release brings KDE Plasma 5.5.4 desktop environment, Include the KDE Applications 15.12.1 software suite and the latest KDE Framework 5 packages. Also include Non-KDE applications LibreOffice 5.1 and Firefox 45. Kubuntu 16.04 powered by long-term support of linux kernel series 4.4.
Kubuntu 16.04 comes with all your favourite apps from KDE, including Dolphin. Even more applications have been ported to KDE Frameworks 5 but those which aren’t, should fit in seamlessly.
Download Kubuntu 16.04 : http://kubuntu.org/getkubuntu