diff --git a/src/.vuepress/styles/index.styl b/src/.vuepress/styles/index.styl
index 016d8d953..22a994763 100644
--- a/src/.vuepress/styles/index.styl
+++ b/src/.vuepress/styles/index.styl
@@ -129,6 +129,14 @@ $contentBorderRadius = 0.5rem
 h1, h2, h3, h4, h5, h6 {
     // Makes the header end before a float-right div
     display: flex;
+    flex-wrap: wrap;
+}
+h1, h2, h3, h4, h5, h6 {
+    > .version {
+        font-weight: normal;
+        font-size: 70%;
+        flex-basis: 100%;
+    }
 }
 
 $buttonLinkBgColor = darken($baseColor, 10%);
diff --git a/src/api-reference/utilities.md b/src/api-reference/utilities.md
index 3127add9c..07602d18a 100644
--- a/src/api-reference/utilities.md
+++ b/src/api-reference/utilities.md
@@ -89,6 +89,16 @@ Determines if an object is an array.
 
 Determines if an object is a function.
 
+### `Handlebars.Utils.isMap(obj)` <small class="version">(since v5.0.0)</small>
+
+Determines if an object is a
+[Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map).
+
+### `Handlebars.Utils.isSet(obj)` <small class="version">(since v5.0.0)</small>
+
+Determines if an object is a
+[Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set).
+
 ### `Handlebars.log(level, message)`
 
 Logger used by the `log` helper.