KDE Plasma 5 is the fifth and current generation of the desktop environment created by KDE primarily for Linux systems. KDE Plasma 5 is the successor of KDE Plasma 4 and was initially released on 15 July 2014. It includes a new default theme, known as "Breeze", as well as increased convergence across different devices. The graphical interface was fully migrated to QML, which uses OpenGL for hardware acceleration resulting in better performance and reduced power consumption.
KDE Plasma 5 is built using Qt 5 and KDE Frameworks 5. Plasma 5.0 improves support for HiDPI displays and ships a converged graphical shell, able to switch between the shells for different target devices. It includes a new default theme, known as Breeze. Changes under the hood include the migration to a new, fully hardware-accelerated graphics stack centered around an OpenGL(ES)-based scene graph (canvas). Plasma 5 completes the migration of KDE Plasma 4 to QtQuick. Qt 5's QtQuick 2 uses a hardware-accelerated OpenGL(ES) scenegraph to compose and render graphics on the screen, which allowed for offloading of computationally expensive graphics rendering tasks onto the GPU which frees up resources on the system's main CPU, and is faster and more power-efficient.
The first Technology Preview of Plasma 5 (then tentatively called Plasma 2) was released on 13 December 2013. On 15 July 2014 the first release version – Plasma 5.0 – saw the light of day. In spring 2015, Plasma 5 replaced Plasma 4 in many popular distributions, such as Fedora 22,Kubuntu 15.04, and openSUSE Tumbleweed.