diff --git a/docs/relnotes/12.1.0.html b/docs/relnotes/12.1.0.html
index 3368ebca6d7..f68b5130379 100644
--- a/docs/relnotes/12.1.0.html
+++ b/docs/relnotes/12.1.0.html
@@ -61,6 +61,7 @@ Note: some of the new features are only available with certain drivers.
 <li>GL_OES_geometry_shader on i965/gen8+, nvc0, radeonsi</li>
 <li>GL_OES_primitive_bounding_box on i965/gen7+, nvc0, radeonsi</li>
 <li>GL_OES_texture_cube_map_array on i965/gen8+, nvc0, radeonsi</li>
+<li>GL_OES_tessellation_shader on i965/gen7+, nvc0, radeonsi</li>
 </ul>
 
 <h2>Bug fixes</h2>