9to5Linux Weekly Roundup for July 19th, 2026, brings news about Blender 5.2 LTS, COSMIC 1.3, KDE Plasma 6.7.3, Arch Linux's official ARM64 port, Wayland 1.26, System76's new Adder Pro Linux laptop, MKVToolNix 100, Clonezilla Live 3.3.3, KDE Plasma 6.8's new features, DXVK 3.0.2, and more.