Update to Drupal 8.2.0. For more information, see https://www.drupal.org/project/drupal/releases/8.2.0

core/modules/rest/rest.install

@@ -5,6 +5,9 @@
  * Install, update and uninstall functions for the rest module.
  */
 
+use Drupal\Core\Config\Entity\ConfigEntityType;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+
 /**
  * Implements hook_requirements().
  */
@@ -21,3 +24,73 @@ function rest_requirements($phase) {
   }
   return $requirements;
 }
+
+/**
+ * @defgroup updates-8.1.x-to-8.2.x
+ * @{
+ * Update functions from 8.1.x to 8.2.x.
+ */
+
+/**
+ * Install the REST config entity type and fix old settings-based config.
+ *
+ * @see rest_post_update_create_rest_resource_config_entities()
+ */
+function rest_update_8201() {
+  \Drupal::entityDefinitionUpdateManager()->installEntityType(new ConfigEntityType([
+    'id' => 'rest_resource_config',
+    'label' => new TranslatableMarkup('REST resource configuration'),
+    'config_prefix' => 'resource',
+    'admin_permission' => 'administer rest resources',
+    'label_callback' => 'getLabelFromPlugin',
+    'entity_keys' => ['id' => 'id'],
+    'config_export' => [
+      'id',
+      'plugin_id',
+      'granularity',
+      'configuration',
+    ],
+  ]));
+  \Drupal::state()->set('rest_update_8201_resources', \Drupal::config('rest.settings')->get('resources'));
+  \Drupal::configFactory()->getEditable('rest.settings')
+    ->clear('resources')
+    ->save();
+}
+
+/**
+ * Re-save all views with a REST display to add new auth defaults.
+ */
+function rest_update_8202() {
+  $config_factory = \Drupal::configFactory();
+  foreach ($config_factory->listAll('views.view.') as $view_config_name) {
+    $save = FALSE;
+    $view = $config_factory->getEditable($view_config_name);
+    $displays = $view->get('display');
+    foreach ($displays as $display_name => &$display) {
+      if ($display['display_plugin'] == 'rest_export') {
+        if (!isset($display['display_options']['auth'])) {
+          $display['display_options']['auth'] = [];
+          $save = TRUE;
+        }
+      }
+    }
+    if ($save) {
+      $view->set('display', $displays);
+      $view->save(TRUE);
+    }
+  }
+}
+
+/**
+ * Enable BC for EntityResource: continue to use permissions.
+ */
+function rest_update_8203() {
+  $config_factory = \Drupal::configFactory();
+  $rest_settings = $config_factory->getEditable('rest.settings');
+  $rest_settings->set('bc_entity_resource_permissions', TRUE)
+    ->save(TRUE);
+}
+
+/**
+ * @} End of "defgroup updates-8.1.x-to-8.2.x".
+ */