It should be a busy end of week for Mesa with the Mesa 17.0 feature freeze being this weekend. In addition to Haswell hitting OpenGL 4.2, Nouveau’s NVC0 Gallium3D driver has enabled OpenGL 4.3 support for newer Maxwell and Pascal hardware…

Source: Phoronix – OpenGL 4.3 Lands For Maxwell With Nouveau Gallium3D, Plus 1.5~3.5x Performance Boost