Nvidia 440.31 is now available as the latest long-lived branch of the proprietary graphics driver for Linux, BSD, and Solaris platforms, adding support for the Nvidia GeForce GTX 1660 SUPER graphics card, parallel GLSL shader linking by default, support for HDMI 2.1 variable refresh rate (VRR), as well as support for the GL_NV_gpu_multicast and GLX_NV_multigpu_context extensions. It also brings VP9 decode support to the Nvidia VDPAU driver, a new “SidebandSocketPath” X configuration option to control the folder where the X driver creates a pathname UNIX domain socket that’s being used to communicate with the Nvidia OpenGL, Vulkan, and VDPAU driver components, and EGL support for PRIME render offload, and optimizes the GPU clock management strategy.