minor status updates

docs/shading.html

@@ -15,7 +15,7 @@ OpenGL Shading Language</a>.
 </p>
 
 <p>
-Last updated on 17 Feb 2007.
+Last updated on 26 March 2007.
 </p>
 
 <p>
@@ -40,10 +40,8 @@ in Mesa:
 
 <ul>
 <li>Dereferencing arrays with non-constant indexes
-<li>User-defined structs
+<li>Comparison of user-defined structs
 <li>Linking of multiple shaders is not supported
-<li>Integer operations are not fully implemented (most are implemented
-    as floating point).
 <li>gl_ClipVertex
 </ul>