3.1 does not yet work on Windows

docs/whatsnew-3.1.rst

@@ -1044,6 +1044,16 @@ Deprecations
 
 See the :ref:`deprecation-timeline`.
 
+.. _v310-known-issues:
+
+Known Issues
+============
+
+- This release does not yet work on Windows.
+
+    We have not had the time to test properly on Windows, this situtation
+    will be resolved in a bug fix release soon.
+
 .. _v310-fixes:
 
 Fixes