diff --git a/site/docs/assets.md b/site/docs/assets.md
index 5191dc15..c0f8aa64 100644
--- a/site/docs/assets.md
+++ b/site/docs/assets.md
@@ -6,6 +6,13 @@ next_section: migrations
 permalink: /docs/assets/
 ---
 
+<div class="note unreleased">
+  <h5>Sass and CoffeeScript support is currently unreleased.</h5>
+  <p>
+    In order to use this feature, you must install v2.0.0.alpha.1 or above.
+  </p>
+</div>
+
 Jekyll provides built-in support for Sass and CoffeeScript. In order to use
 them, create a file with the proper extension name (one of `.sass`, `.scss`,
 or `.coffee`) and start the file with two lines of triple dashes, like this: