diff --git a/wp-admin/includes/class-wp-upgrader-skins.php b/wp-admin/includes/class-wp-upgrader-skins.php
index beb403735d..c9d32cebe8 100644
--- a/wp-admin/includes/class-wp-upgrader-skins.php
+++ b/wp-admin/includes/class-wp-upgrader-skins.php
@@ -225,7 +225,7 @@ class Plugin_Upgrader_Skin extends WP_Upgrader_Skin {
 		$this->plugin = $this->upgrader->plugin_info();
 		if ( !empty($this->plugin) && !is_wp_error($this->result) && $this->plugin_active ){
 			// Currently used only when JS is off for a single plugin update?
-			echo '<iframe title="' . esc_attr( 'Update progress' ) . '" style="border:0;overflow:hidden" width="100%" height="170" src="' . wp_nonce_url( 'update.php?action=activate-plugin&networkwide=' . $this->plugin_network_active . '&plugin=' . urlencode( $this->plugin ), 'activate-plugin_' . $this->plugin ) . '"></iframe>';
+			echo '<iframe title="' . esc_attr__( 'Update progress' ) . '" style="border:0;overflow:hidden" width="100%" height="170" src="' . wp_nonce_url( 'update.php?action=activate-plugin&networkwide=' . $this->plugin_network_active . '&plugin=' . urlencode( $this->plugin ), 'activate-plugin_' . $this->plugin ) . '"></iframe>';
 		}
 
 		$this->decrement_update_count( 'plugin' );
diff --git a/wp-admin/update-core.php b/wp-admin/update-core.php
index 3c499011ae..e4fd79617b 100644
--- a/wp-admin/update-core.php
+++ b/wp-admin/update-core.php
@@ -644,7 +644,7 @@ if ( 'upgrade-core' == $action ) {
 	require_once(ABSPATH . 'wp-admin/admin-header.php');
 	echo '<div class="wrap">';
 	echo '<h1>' . __( 'Update Plugins' ) . '</h1>';
-	echo '<iframe src="', $url, '" style="width: 100%; height: 100%; min-height: 750px;" frameborder="0" title="' . esc_attr( 'Update progress' ) . '"></iframe>';
+	echo '<iframe src="', $url, '" style="width: 100%; height: 100%; min-height: 750px;" frameborder="0" title="' . esc_attr__( 'Update progress' ) . '"></iframe>';
 	echo '</div>';
 	include(ABSPATH . 'wp-admin/admin-footer.php');
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 0dedccee36..6f148f75cd 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-alpha-35854';
+$wp_version = '4.5-alpha-35855';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.