diff --git a/wp-includes/class-wp-network.php b/wp-includes/class-wp-network.php
index 0ccafafd1c..529c73f3b7 100644
--- a/wp-includes/class-wp-network.php
+++ b/wp-includes/class-wp-network.php
@@ -23,9 +23,11 @@ class WP_Network {
 	/**
 	 * Network ID.
 	 *
+	 * A numeric string, for compatibility reasons.
+	 *
 	 * @since 4.4.0
 	 * @access public
-	 * @var int
+	 * @var string
 	 */
 	public $id;
 
@@ -53,9 +55,11 @@ class WP_Network {
 	 * Named "blog" vs. "site" for legacy reasons. A main site is mapped to
 	 * the network when the network is created.
 	 *
+	 * A numeric string, for compatibility reasons.
+	 *
 	 * @since 4.4.0
 	 * @access public
-	 * @var int
+	 * @var string
 	 */
 	public $blog_id = 0;
 
@@ -64,7 +68,7 @@ class WP_Network {
 	 *
 	 * @since 4.4.0
 	 * @access public
-	 * @var int
+	 * @var string
 	 */
 	public $cookie_domain = '';
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 0043600c1a..70574c585d 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-alpha-1453085412976';
+$wp_version = '4.5-alpha-1453085953122';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.