Ticket #34937: 34937.patch

src/wp-includes/update.php

@@ -262 +262 @@
 
         $to_send = compact( 'plugins', 'active' );
 
+        $locales = array_values( get_available_languages() );
         /**
          * Filter the locales requested for plugin translations.
          *
          * @since 3.7.0
+         * @since 4.5.0 Changed default value of `$locales` to include all locales.
          *
-         * @param array $locales Plugin locale. Default is current locale of the site.
+         * @param array $locales Plugin locales. Default is all available locales of the site.
          */
-        $locales = apply_filters( 'plugins_update_check_locales', array( get_locale() ) );
+        $locales = apply_filters( 'plugins_update_check_locales', $locales );
+        $locales = array_unique( $locales );
 
         if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
                 $timeout = 30;
@@ -432 +435 @@
 
         $request['themes'] = $themes;
 
+        $locales = array_values( get_available_languages() );
         /**
          * Filter the locales requested for theme translations.
          *
          * @since 3.7.0
+         * @since 4.5.0 Changed default value of `$locales` to include all locales.
          *
-         * @param array $locales Theme locale. Default is current locale of the site.
+         * @param array $locales Theme locales. Default is all available locales of the site.
          */
-        $locales = apply_filters( 'themes_update_check_locales', array( get_locale() ) );
+        $locales = apply_filters( 'themes_update_check_locales', $locales );
+        $locales = array_unique( $locales );
 
         if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
                 $timeout = 30;