+Mesa 7.11 is a new development release.
+People who are concerned with stability and reliability should stick
+with a previous release or wait for Mesa 7.11.1.
+
+
+Mesa 7.11 implements the OpenGL 2.1 API, but the version reported by
+glGetString(GL_VERSION) depends on the particular driver being used.
+Some drivers don't support all the features required in OpenGL 2.1.
+