GL_ARB_shader_image_load_store in progress (curro)
GL_ARB_conservative_depth DONE (all drivers that support GLSL 1.30)
GL_ARB_shading_language_420pack DONE (all drivers that support GLSL 1.30)
+ GL_ARB_shading_language_packing DONE (all drivers)
GL_ARB_internalformat_query DONE (i965, nv50, nvc0, r300, r600, radeonsi, llvmpipe, softpipe)
GL_ARB_map_buffer_alignment DONE (all drivers)
GL_KHR_context_flush_control DONE (all - but needs GLX/EXT extension to be useful)
GL_KHR_robust_buffer_access_behavior not started
GL_KHR_robustness 90% done (the ARB variant)
+ GL_EXT_shader_integer_mix DONE (all drivers that support GLSL)
These are the extensions cherry-picked to make GLES 3.1
GLES3.1, GLSL ES 3.1
GL_ARB_shader_atomic_counters DONE (i965)
GL_ARB_shader_image_load_store in progress (curro)
GL_ARB_shader_storage_buffer_object not started
+ GL_ARB_shading_language_packing DONE (all drivers)
GL_ARB_separate_shader_objects DONE (all drivers)
GL_ARB_stencil_texturing DONE (i965/gen8+, nv50, nvc0, r600, radeonsi, llvmpipe, softpipe)
GL_ARB_vertex_attrib_binding DONE (all drivers)