Index: clang/test/CXX/drs/dr6xx.cpp
===================================================================
--- clang/test/CXX/drs/dr6xx.cpp
+++ clang/test/CXX/drs/dr6xx.cpp
@@ -3,6 +3,21 @@
 // RUN: %clang_cc1 -std=c++14 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -fno-spell-checking
 // RUN: %clang_cc1 -std=c++17 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -fno-spell-checking
 // RUN: %clang_cc1 -std=c++20 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -fno-spell-checking
+// RUN: %clang_cc1 -std=c++2b %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -fno-spell-checking
+
+namespace dr600 { // dr600: yes
+struct S {
+  void f(int);
+
+private:
+  void f(double); // expected-note {{declared private here}}
+};
+
+void g(S *sp) {
+  sp->f(2);
+  sp->f(2.2); // expected-error {{is a private member}}
+}
+} // namespace dr600
 
 namespace std {
   struct type_info {};
Index: clang/www/cxx_dr_status.html
===================================================================
--- clang/www/cxx_dr_status.html
+++ clang/www/cxx_dr_status.html
@@ -3642,7 +3642,7 @@
     <td><a href="https://wg21.link/cwg600">600</a></td>
     <td>CD6</td>
     <td>Does access control apply to members or to names?</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr id="601">
     <td><a href="https://wg21.link/cwg601">601</a></td>