KDE Plasma 5.7 Release

KDE Plasma 5.7 has been released.This release features the return of the agenda view in the calendar,improvements to the Volume Control applet allow volume control on aper-application basis, improved Wayland support, and more. "This release brings Plasma closer to the new windowing system Wayland. Wayland is the successor of the decades-old X11 windowing system and brings many improvements, especially when it comes to tear-free and flicker-free rendering as well as security. The development of Plasma 5.7 for Wayland focused on quality in the Wayland compositor KWin. Over 5,000 lines of auto tests were added to KWin and another 5,000 lines were added to KWayland which is now released as part of KDE Frameworks 5."