diff --git a/code/boot.js b/code/boot.js
index 93fe83ed..467771f8 100644
--- a/code/boot.js
+++ b/code/boot.js
@@ -27,6 +27,7 @@ window.setupLargeImagePreview = function() {
 
 window.setupStyles = function() {
   $('head').append('<style>' +
+    [ 'body:after { display: none } ',
     [ '#largepreview.enl img { border:2px solid '+COLORS[TEAM_ENL]+'; } ',
       '#largepreview.res img { border:2px solid '+COLORS[TEAM_RES]+'; } ',
       '#largepreview.none img { border:2px solid '+COLORS[TEAM_NONE]+'; } ',
diff --git a/style.css b/style.css
index 81f8dcc0..0b4ea8e5 100644
--- a/style.css
+++ b/style.css
@@ -1,3 +1,17 @@
+/* update notice */
+body:after {
+  background: none repeat scroll 0 0 #FFFFFF;
+  color: red;
+  content: "Please update your total conversion script or it will not work properly anymore.";
+  display: block;
+  font-weight: bold;
+  left: 381px;
+  padding: 2px;
+  position: absolute;
+  top: 0;
+  z-index: 9001;
+}
+
 /* general rules ******************************************************/
 
 html, body, #map {