This release supports GLX 1.4. Additionally, the following GLX extensions are supported on appropriate GPUs:
GLX_EXT_visual_info
GLX_EXT_visual_rating
GLX_SGIX_fbconfig
GLX_SGIX_pbuffer
GLX_ARB_get_proc_address
GLX_SGI_video_sync
GLX_SGI_swap_control
GLX_ARB_multisample
GLX_NV_float_buffer
GLX_ARB_fbconfig_float
GLX_NV_swap_group
GLX_NV_video_out
GLX_EXT_texture_from_pixmap
For a description of these extensions, please see the OpenGL extension registry at http://www.opengl.org/registry/
Some of the above extensions exist as part of core GLX 1.4 functionality, however, they are also exported as extensions for backwards compatibility.