diff --git a/clang/test/CXX/drs/cwg1xx.cpp b/clang/test/CXX/drs/cwg1xx.cpp
index 6bc63760f8333..b39cc21fa4917 100644
--- a/clang/test/CXX/drs/cwg1xx.cpp
+++ b/clang/test/CXX/drs/cwg1xx.cpp
@@ -753,6 +753,46 @@ namespace cwg148 { // cwg148: yes
 
 // cwg149: na
 
+namespace cwg150 { // cwg150: 19
+  namespace p1 {
+    template <class T, class U = int>
+    class ARG { };
+
+    template <class X, template <class Y> class PARM>
+    void f(PARM<X>) { }
+
+    void g() {
+      ARG<int> x;
+      f(x);
+    }
+  } // namespace p1
+
+  namespace p2 {
+    template <template <class T, class U = int> class PARM>
+    class C {
+      PARM<int> pi;
+    };
+  } // namespace p2
+
+  namespace n1 {
+    struct Dense { static const unsigned int dim = 1; };
+
+    template <template <typename> class View,
+              typename Block>
+    void operator+(float, View<Block> const&);
+
+    template <typename Block,
+              unsigned int Dim = Block::dim>
+    class Lvalue_proxy { operator float() const; };
+
+    void test_1d (void) {
+      Lvalue_proxy<Dense> p;
+      float b;
+      b + p;
+    }
+  } // namespace n1
+}
+
 namespace cwg151 { // cwg151: 3.1
   struct X {};
   typedef int X::*p;
diff --git a/clang/www/cxx_dr_status.html b/clang/www/cxx_dr_status.html
index 4cce88fe0490f..628ee12992e6b 100755
--- a/clang/www/cxx_dr_status.html
+++ b/clang/www/cxx_dr_status.html
@@ -938,7 +938,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
     <td><a href="https://cplusplus.github.io/CWG/issues/150.html">150</a></td>
     <td>C++17</td>
     <td>Template template parameters and default arguments</td>
-    <td class="unknown" align="center">Unknown</td>
+    <td class="unreleased" align="center">Clang 19</td>
   </tr>
   <tr id="151">
     <td><a href="https://cplusplus.github.io/CWG/issues/151.html">151</a></td>