diff --git a/wp-includes/media.php b/wp-includes/media.php
index 3a11006347..23f6756df6 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -1705,9 +1705,10 @@ function wp_lazy_loading_enabled( $tag_name, $context ) {
 }
 
 /**
- * Filters specific tags in post content and modifies their markup.
- *
- * This function adds `srcset`, `sizes`, and `loading` attributes to `img` HTML tags.
+ * Modifies specific HTML tags in post content to include new browser and HTML technologies
+ * that may not have existed at the time of post creation. These modifications currently include
+ * adding `srcset`, `sizes`, and `loading` attributes to `img` HTML tags. Future similar
+ * optimizations should be added/expected here.
  *
  * @since 5.5.0
  *
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 1ef41f482d..02c0fbaead 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-beta4-48647';
+$wp_version = '5.5-beta4-48648';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.