diff --git a/wp-admin/includes/class-wp-upgrader.php b/wp-admin/includes/class-wp-upgrader.php
index 246f646760..0d5e216e49 100644
--- a/wp-admin/includes/class-wp-upgrader.php
+++ b/wp-admin/includes/class-wp-upgrader.php
@@ -976,6 +976,8 @@ class Plugin_Upgrader extends WP_Upgrader {
 		add_filter('upgrader_pre_install', array($this, 'deactivate_plugin_before_upgrade'), 10, 2);
 		add_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'), 10, 4);
 		//'source_selection' => array($this, 'source_selection'), //there's a trac ticket to move up the directory for zip's which are made a bit differently, useful for non-.org plugins.
+		// Clear cache so wp_update_plugins() knows about the new plugin.
+		add_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9, 0 );
 
 		$this->run( array(
 			'package' => $r->package,
@@ -990,6 +992,7 @@ class Plugin_Upgrader extends WP_Upgrader {
 		) );
 
 		// Cleanup our hooks, in case something else does a upgrade on this connection.
+		remove_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9 );
 		remove_filter('upgrader_pre_install', array($this, 'deactivate_plugin_before_upgrade'));
 		remove_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'));
 
@@ -1032,6 +1035,7 @@ class Plugin_Upgrader extends WP_Upgrader {
 		$current = get_site_transient( 'update_plugins' );
 
 		add_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'), 10, 4);
+		add_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9, 0 );
 
 		$this->skin->header();
 
@@ -1126,6 +1130,7 @@ class Plugin_Upgrader extends WP_Upgrader {
 		$this->skin->footer();
 
 		// Cleanup our hooks, in case something else does a upgrade on this connection.
+		remove_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9 );
 		remove_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'));
 
 		// Force refresh of plugin update information.
@@ -1544,6 +1549,8 @@ class Theme_Upgrader extends WP_Upgrader {
 		add_filter('upgrader_pre_install', array($this, 'current_before'), 10, 2);
 		add_filter('upgrader_post_install', array($this, 'current_after'), 10, 2);
 		add_filter('upgrader_clear_destination', array($this, 'delete_old_theme'), 10, 4);
+		// Clear cache so wp_update_themes() knows about the new theme.
+		add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 );
 
 		$this->run( array(
 			'package' => $r['package'],
@@ -1557,6 +1564,7 @@ class Theme_Upgrader extends WP_Upgrader {
 			),
 		) );
 
+		remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 );
 		remove_filter('upgrader_pre_install', array($this, 'current_before'));
 		remove_filter('upgrader_post_install', array($this, 'current_after'));
 		remove_filter('upgrader_clear_destination', array($this, 'delete_old_theme'));
@@ -1601,6 +1609,8 @@ class Theme_Upgrader extends WP_Upgrader {
 		add_filter('upgrader_pre_install', array($this, 'current_before'), 10, 2);
 		add_filter('upgrader_post_install', array($this, 'current_after'), 10, 2);
 		add_filter('upgrader_clear_destination', array($this, 'delete_old_theme'), 10, 4);
+		// Clear cache so wp_update_themes() knows about the new theme.
+		add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 );
 
 		$this->skin->header();
 
@@ -1677,6 +1687,7 @@ class Theme_Upgrader extends WP_Upgrader {
 		$this->skin->footer();
 
 		// Cleanup our hooks, in case something else does a upgrade on this connection.
+		remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 );
 		remove_filter('upgrader_pre_install', array($this, 'current_before'));
 		remove_filter('upgrader_post_install', array($this, 'current_after'));
 		remove_filter('upgrader_clear_destination', array($this, 'delete_old_theme'));
diff --git a/wp-includes/version.php b/wp-includes/version.php
index dcf790e7fa..eead0e32e4 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-alpha-37271';
+$wp_version = '4.6-alpha-37272';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.