diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index e3d10601ca..95672f5350 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -3342,6 +3342,18 @@ function smilies_init() {
 		);
 	}
 
+	/**
+	 * Filter all the smilies.
+	 *
+	 * This filter must be added before `smilies_init` is run, as
+	 * it is normally only run once to setup the smilies regex.
+	 *
+	 * @since 4.6.0
+	 *
+	 * @param array $wpsmiliestrans List of the smilies.
+	 */
+	$wpsmiliestrans = apply_filters('smilies', $wpsmiliestrans);
+
 	if (count($wpsmiliestrans) == 0) {
 		return;
 	}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ab4727d201..a40f9e0ad7 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38503';
+$wp_version = '4.7-alpha-38504';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.