diff --git a/Help/release/dev/mingw-clang-compile-features.rst b/Help/release/dev/mingw-clang-compile-features.rst
new file mode 100644
index 000000000..5b1fb9642
--- /dev/null
+++ b/Help/release/dev/mingw-clang-compile-features.rst
@@ -0,0 +1,5 @@
+mingw-clang-compile-features
+----------------------------
+
+* The :manual:`Compile Features <cmake-compile-features(7)>` functionality
+  is now aware of features supported by Clang compilers on Windows (MinGW).
diff --git a/Modules/Compiler/Clang-CXX.cmake b/Modules/Compiler/Clang-CXX.cmake
index 6a0a5e2ff..dc6271198 100644
--- a/Modules/Compiler/Clang-CXX.cmake
+++ b/Modules/Compiler/Clang-CXX.cmake
@@ -6,7 +6,7 @@ if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
 endif()
 
 cmake_policy(GET CMP0025 appleClangPolicy)
-if(WIN32 OR (APPLE AND NOT appleClangPolicy STREQUAL NEW))
+if(APPLE AND NOT appleClangPolicy STREQUAL NEW)
   return()
 endif()
 
@@ -49,7 +49,7 @@ macro(cmake_record_cxx_compile_features)
   endmacro()
 
   set(_result 0)
-  if (UNIX AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.4)
+  if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.4)
     _get_clang_features(${CMAKE_CXX14_STANDARD_COMPILE_OPTION} CMAKE_CXX14_COMPILE_FEATURES)
     if (_result EQUAL 0)
       _get_clang_features(${CMAKE_CXX11_STANDARD_COMPILE_OPTION} CMAKE_CXX11_COMPILE_FEATURES)