GL_ARB_shader_group_vote DONE (i965, nvc0, radeonsi)
GL_ARB_spirv_extensions in progress (Nicolai Hähnle, Ian Romanick)
GL_ARB_texture_filter_anisotropic not started
- GL_ARB_transform_feedback_overflow_query DONE (i965/gen6+, radeonsi)
+ GL_ARB_transform_feedback_overflow_query DONE (i965/gen6+, radeonsi, llvmpipe, softpipe)
GL_KHR_no_error started (Timothy Arceri)
These are the extensions cherry-picked to make GLES 3.1