Index: trunk/data/validator/deprecated.mapcss
===================================================================
--- trunk/data/validator/deprecated.mapcss	(revision 8725)
+++ trunk/data/validator/deprecated.mapcss	(revision 8730)
@@ -529,2 +529,8 @@
   fixChangeKey: "pk => distance";
 }
+
+*[postcode] {
+  throwWarning: tr("{0} is deprecated", "{0.key}");
+  suggestAlternative: "addr:postcode";
+  suggestAlternative: "postal_code";
+}