diff --git a/source/specifications/core-metadata.rst b/source/specifications/core-metadata.rst
index c1ce528e7..422d30cd4 100644
--- a/source/specifications/core-metadata.rst
+++ b/source/specifications/core-metadata.rst
@@ -800,6 +800,10 @@ Deprecated Fields
 .. _home-page-optional:
 .. _core-metadata-home-page:
 
+Deprecated fields are valid metadata fields for any metadata version. Tools
+MUST attempt to convert deprecated fields to non-deprecated fields when
+appropriate. Tools SHOULD warn users when deprecated fields are used.
+
 Home-page
 ---------