Update core 8.3.0

web/core/modules/system/system.post_update.php

@@ -5,10 +5,9 @@
  * Post update functions for System.
  */
 
-/**
- * @addtogroup updates-8.0.0-beta
- * @{
- */
+use Drupal\Core\Entity\Display\EntityDisplayInterface;
+use Drupal\Core\Entity\Entity\EntityFormDisplay;
+use Drupal\Core\Entity\Entity\EntityViewDisplay;
 
 /**
  * Re-save all configuration entities to recalculate dependencies.
@@ -39,5 +38,30 @@ function system_post_update_recalculate_configuration_entity_dependencies(&$sand
 }
 
 /**
- * @} End of "addtogroup updates-8.0.0-beta".
+ * Update entity displays to contain the region for each field.
  */
+function system_post_update_add_region_to_entity_displays() {
+  $entity_save = function (EntityDisplayInterface $entity) {
+    // preSave() will fill in the correct region based on the 'type'.
+    $entity->save();
+  };
+  array_map($entity_save, EntityViewDisplay::loadMultiple());
+  array_map($entity_save, EntityFormDisplay::loadMultiple());
+}
+
+
+/**
+ * Force caches using hashes to be cleared (Twig, render cache, etc.).
+ */
+function system_post_update_hashes_clear_cache() {
+  // Empty post-update hook.
+}
+
+/**
+ * Force plugin definitions to be cleared.
+ *
+ * @see https://www.drupal.org/node/2802663
+ */
+function system_post_update_timestamp_plugins() {
+  // Empty post-update hook.
+}