diff --git a/wp-includes/version.php b/wp-includes/version.php
index 4e28b6aef3..4c20d02457 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-beta1-31782';
+$wp_version = '4.2-beta1-31783';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
diff --git a/wp-includes/wp-db.php b/wp-includes/wp-db.php
index 539324091d..ae0ec7ec94 100644
--- a/wp-includes/wp-db.php
+++ b/wp-includes/wp-db.php
@@ -2805,10 +2805,12 @@ class wpdb {
 					return false;
 				}
 				if ( $this->use_mysqli ) {
-					return mysqli_get_client_version( $this->dbh ) >= 50503;
+					$client_version = mysqli_get_client_info();
 				} else {
-					return mysql_get_client_version( $this->dbh ) >= 50503;
+					$client_version = mysql_get_client_info();
 				}
+
+				return version_compare( $client_version, '5.5.3', '>=' );
 		}
 
 		return false;