The Mesa 18.1 series comes approximately two months after the 18.0 branch, which probably most GNU/Linux distributions are using these days, and which already received its fourth maintenance updates. Mesa 18.1 introduces a few new features across all supported graphics drivers, but it’s mostly another stability update. Prominent new features implemented in the Mesa 18.1 graphics stack include OpenGL 3.1 support with ARB_compatibility for the nv50, nvc0, r600, RadeonSI, Gallium3D Softpipe, Gallium3D LLVMpipe, and Gallium3D SVGA graphics drivers, and enablement of disk shader cache support for the Intel i965 OpenGL graphics driver by default.