Index: trunk/data/validator/deprecated.mapcss
===================================================================
--- trunk/data/validator/deprecated.mapcss	(revision 15635)
+++ trunk/data/validator/deprecated.mapcss	(revision 15636)
@@ -1846,2 +1846,10 @@
   group: tr("deprecated tagging");
 }
+
+/* #18469 */
+way[landuse=churchyard] {
+  throwWarning: tr("{0} is deprecated", "{0.tag}");
+  suggestAlternative: "landuse=religious";
+  suggestAlternative: "amenity=graveyard";
+  group: tr("deprecated tagging");
+}