diff --git a/Help/release/dev/mingw-compile-features.rst b/Help/release/dev/mingw-compile-features.rst
new file mode 100644
index 000000000..e2ed30b1e
--- /dev/null
+++ b/Help/release/dev/mingw-compile-features.rst
@@ -0,0 +1,6 @@
+mingw-compile-features
+----------------------
+
+* The :manual:`Compile Features <cmake-compile-features(7)>` functionality
+  is now aware of features supported by GNU compilers on Windows, versions
+  4.4 through 5.0.
diff --git a/Modules/Compiler/GNU-CXX.cmake b/Modules/Compiler/GNU-CXX.cmake
index 86a31e46c..2dc02f0c0 100644
--- a/Modules/Compiler/GNU-CXX.cmake
+++ b/Modules/Compiler/GNU-CXX.cmake
@@ -44,10 +44,10 @@ macro(cmake_record_cxx_compile_features)
   endmacro()
 
   set(_result 0)
-  if (UNIX AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
+  if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
     _get_gcc_features(${CMAKE_CXX14_STANDARD_COMPILE_OPTION} CMAKE_CXX14_COMPILE_FEATURES)
   endif()
-  if (UNIX AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.4)
+  if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.4)
     if (_result EQUAL 0)
       _get_gcc_features(${CMAKE_CXX11_STANDARD_COMPILE_OPTION} CMAKE_CXX11_COMPILE_FEATURES)
     endif()