.../custom_block/lib/Drupal/custom_block/CustomBlockViewBuilder.php   |    1 +
 core/modules/node/lib/Drupal/node/NodeViewBuilder.php                 |    1 +
 core/modules/taxonomy/lib/Drupal/taxonomy/TermViewBuilder.php         |    1 +
 3 files changed, 3 insertions(+)

diff --git a/core/modules/block/custom_block/lib/Drupal/custom_block/CustomBlockViewBuilder.php b/core/modules/block/custom_block/lib/Drupal/custom_block/CustomBlockViewBuilder.php
index 1477345..fce1c56 100644
--- a/core/modules/block/custom_block/lib/Drupal/custom_block/CustomBlockViewBuilder.php
+++ b/core/modules/block/custom_block/lib/Drupal/custom_block/CustomBlockViewBuilder.php
@@ -25,6 +25,7 @@ protected function alterBuild(array &$build, EntityInterface $entity, EntityDisp
     if (!empty($entity->id->value) && $view_mode == 'full') {
       $build['#contextual_links']['custom_block'] = array(
         'route_parameters' => array('custom_block' => $entity->id()),
+        'metadata' => array('changed' => $entity->getChangedTime()),
       );
     }
   }
diff --git a/core/modules/node/lib/Drupal/node/NodeViewBuilder.php b/core/modules/node/lib/Drupal/node/NodeViewBuilder.php
index 036d283..59b4353 100644
--- a/core/modules/node/lib/Drupal/node/NodeViewBuilder.php
+++ b/core/modules/node/lib/Drupal/node/NodeViewBuilder.php
@@ -85,6 +85,7 @@ protected function alterBuild(array &$build, EntityInterface $entity, EntityDisp
     if ($entity->id()) {
       $build['#contextual_links']['node'] = array(
         'route_parameters' =>array('node' => $entity->id()),
+        'metadata' => array('changed' => $entity->getChangedTime()),
       );
     }
 
diff --git a/core/modules/taxonomy/lib/Drupal/taxonomy/TermViewBuilder.php b/core/modules/taxonomy/lib/Drupal/taxonomy/TermViewBuilder.php
index b33dbfd..1acb848 100644
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/TermViewBuilder.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/TermViewBuilder.php
@@ -56,6 +56,7 @@ protected function alterBuild(array &$build, EntityInterface $entity, EntityDisp
     $build['#attached']['css'][] = drupal_get_path('module', 'taxonomy') . '/css/taxonomy.module.css';
     $build['#contextual_links']['taxonomy_term'] = array(
       'route_parameters' => array('taxonomy_term' => $entity->id()),
+      'metadata' => array('changed' => $entity->getChangedTime()),
     );
   }