sync code with last improvements from OpenBSD

lib/mesa/docs/relnotes/6.0

@@ -0,0 +1,86 @@
+
+                           Mesa 6.0 release notes
+
+                             January 16, 2004
+
+                              PLEASE READ!!!!
+
+
+
+Introduction
+------------
+
+Mesa uses an even/odd version number scheme like the Linux kernel.
+Odd numbered versions (such as 5.1) designate new developmental releases.
+Even numbered versions (such as 6.0) designate stable releases.
+
+Mesa version 6.0 signifies two things:
+
+  1. A stabilization of the 5.1 development release
+  2. Implementation of the OpenGL 1.5 specification.  When you query
+     glGetString(GL_VERSION) "1.5" will be returned (as long as the
+     driver supports all the required features).
+
+
+Note that the Mesa major version number is incremented with the OpenGL
+minor version number:
+
+   Mesa 1.x  ==  OpenGL 1.0
+   Mesa 2.x  ==  OpenGL 1.1
+   Mesa 3.x  ==  OpenGL 1.2
+   Mesa 4.x  ==  OpenGL 1.3
+   Mesa 5.x  ==  OpenGL 1.4
+   Mesa 6.x  ==  OpenGL 1.5
+
+
+
+New Features
+------------
+
+Mesa 5.1 already had all the new features of OpenGL 1.5, implemented as
+extensions.  These extensions were simply promoted to standard features:
+
+   GL_ARB_occlusion_query extension
+   GL_ARB_texture_non_power_of_two extension
+   GL_ARB_vertex_buffer_object extension
+   GL_EXT_shadow_funcs
+
+
+
+Device Drivers
+--------------
+
+Mesa advertises itself as either OpenGL 1.2 or OpenGL 1.3 depending on
+the device driver.  For example, if the driver enables all the ARB
+extensions which are part of OpenGL 1.3 then glGetString(GL_VERSION)
+will return "1.3".  Otherwise, it'll return "1.2".
+
+A number of Mesa's software drivers haven't been actively maintained for
+some time.  We rely on volunteers to maintain many of the drivers.
+Here's the current status of all included drivers:
+
+
+Driver			Status
+----------------------	---------------------
+XMesa (Xlib)		implements OpenGL 1.5
+OSMesa (off-screen)	implements OpenGL 1.5
+FX (3dfx Voodoo1/2)	implements OpenGL 1.3
+SVGA			implements OpenGL 1.3
+Wind River UGL		implements OpenGL 1.3
+Windows/Win32		implements OpenGL 1.5
+DJGPP			implements OpenGL 1.5
+GGI			implements OpenGL 1.3
+BeOS			implements OpenGL 1.5
+Allegro			needs updating
+D3D			needs updating
+
+
+
+
+Other Changes
+-------------
+
+See the VERSIONS file for more details about bug fixes, etc. in Mesa 6.0.
+
+
+----------------------------------------------------------------------