Index: trunk/resources/data/validator/deprecated.mapcss
===================================================================
--- trunk/resources/data/validator/deprecated.mapcss	(revision 17944)
+++ trunk/resources/data/validator/deprecated.mapcss	(revision 17950)
@@ -965,4 +965,5 @@
   suggestAlternative: "amenity=school";
   suggestAlternative: "amenity=university";
+  suggestAlternative: "landuse=education";
   group: tr("deprecated tagging");
 }
@@ -2273,3 +2274,13 @@
 }
 
+/* #20959 */
+*[landuse=school] {
+  throwWarning: tr("{0} is deprecated", "{0.tag}");
+  suggestAlternative: "amenity=college";
+  suggestAlternative: "amenity=school";
+  suggestAlternative: "amenity=university";
+  suggestAlternative: "landuse=education";
+  group: tr("deprecated tagging");
+}
+
 /* When tags are deprecated they should be added to ignoretags.cfg too. */