diff --git wp-includes/update.php wp-includes/update.php
index c0eaf1b..13b5741 100644
--- wp-includes/update.php
+++ wp-includes/update.php
@@ -142,6 +142,7 @@ function wp_version_check( $extra_stats = array() ) {
 	if ( isset( $body['translations'] ) )
 		$updates->translations = $body['translations'];
 
+	$updates = apply_filters( 'core_version_check_response', $updates );
 	set_site_transient( 'update_core',  $updates);
 }
 
@@ -269,6 +270,7 @@ function wp_update_plugins() {
 		$new_option->translations = array();
 	}
 
+	$new_option = apply_filters( 'plugins_update_check_response', $new_option );
 	set_site_transient( 'update_plugins', $new_option );
 }
 
@@ -402,6 +404,7 @@ function wp_update_themes() {
 		$new_update->translations = $response['translations'];
 	}
 
+	$new_update = apply_filters( 'themes_update_check_response', $new_update );
 	set_site_transient( 'update_themes', $new_update );
 }