diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 3ccf5f442df..b8c46d11031 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,7 @@
+2013-04-20  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	* doc/xml/manual/extensions.xml: Fix anachronism.
+
 2013-04-09  Tom Tromey  <tromey@redhat.com>
 
 	* configure, config.h.in: Rebuild.
diff --git a/libstdc++-v3/doc/xml/manual/extensions.xml b/libstdc++-v3/doc/xml/manual/extensions.xml
index 1f3da2fd9d6..7b35d056344 100644
--- a/libstdc++-v3/doc/xml/manual/extensions.xml
+++ b/libstdc++-v3/doc/xml/manual/extensions.xml
@@ -87,10 +87,11 @@ extensions, be aware of two things:
       3.1, 3.2 and 3.3).
    </para>
 
-   <para>Please note that the upcoming C++ standard has first-class
+   <para>Please note that the concept checks only validate the requirements
+   of the old C++03 standard. C++11 was expected to have first-class
    support for template parameter constraints based on concepts in the core
-   language. This will obviate the need for the library-simulated concept
-   checking described above.
+   language. This would have obviated the need for the library-simulated concept
+   checking described above, but was not part of C++11.
    </para>
 
 </chapter>