Michael Vanetta
--- a/core/lib/Drupal/Core/Menu/LocalTaskManager.php
+++ b/core/lib/Drupal/Core/Menu/LocalTaskManager.php
    $this->accessManager = $access_manager;
    $this->account = $account;
    $this->moduleHandler = $module_handler;
+    $this->stringTranslation = $string_translation;
+
+    if ($string_translation === NULL) {
+      @trigger_error('The string_translation service must be passed to ' . __NAMESPACE__ . '\LocalTaskManager::__construct. It was added in Drupal 10.1.0 and is required in Drupal 11.0.0.', E_USER_DEPRECATED);
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
  ];
 }

+/**
+ * Prepares variables for local tasks templates.
+ *
+ * Default template: menu-local-tasks.html.twig.
+ *
+ * @param array $variables
+ *   An associative array containing:
+ *   - primary: HTML list items representing primary tasks.
+ *   - secondary: HTML list items representing secondary tasks.
+ */
+function template_preprocess_menu_local_tasks(array &$variables) {