diff --git a/source/_components/frontend.markdown b/source/_components/frontend.markdown
index 5576c691f5f..508ae23f407 100644
--- a/source/_components/frontend.markdown
+++ b/source/_components/frontend.markdown
@@ -17,7 +17,7 @@ frontend:
 
 {% configuration %}
   javascript_version:
-    description: "Version of the JavaScript to serve to clients. Options: `es5` - transpiled so old browsers understand it.  `latest` - not transpiled, so will work on recent browsers only. `auto` - select a version according to the browser user-agent. The value in the config can be overiden by putting `es5` or `latest` in the URL. For example `http://localhost:8123/states?es5` "
+    description: "DEPRECATED, it is now done using feature detection in the browser. Version of the JavaScript to serve to clients. Options: `es5` - transpiled so old browsers understand it.  `latest` - not transpiled, so will work on recent browsers only. `auto` - select a version according to the browser user-agent. The value in the config can be overiden by putting `es5` or `latest` in the URL. For example `http://localhost:8123/states?es5` "
     required: false
     type: string
     default: auto