KDE Plasma 6.6.5 addresses critical performance issues tied to NVIDIA’s driver 595 update, particularly improving color accuracy on NVIDIA GPUs and resolving multi-GPU compatibility problems. The release focuses on stability, fixing bugs like improper screen capture copying in Spectacle and HDR display misconfigurations.

The update specifically tackles a multi-GPU bug affecting Wayland and KWin users, which arises from OpenGL-based copy code. KDE plans to eliminate this in KDE 6.7 by rewriting the code with Vulkan. Another fix ensures HDR functionality remains controlled by display settings rather than external options like CI/DCI.

KDE 6.7, slated for June 16, 2026, promises deeper changes, including a CSS-based Union style engine, revived Air and Oxygen themes, and enhanced Wayland session restoration. These updates aim to refine usability and visual consistency across KDE’s ecosystem.