Resolve #3437633 "Release notes"

Closes #3437633

automatic_updates_extensions/src/Form/UpdaterForm.php

@@ -20,6 +20,7 @@ use Drupal\package_manager\PathLocator;
 use Drupal\package_manager\ProjectInfo;
 use Drupal\package_manager\ValidationResult;
 use Drupal\system\SystemManager;
+use Drupal\update\ProjectRelease;
 use Drupal\update\UpdateManagerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
@@ -110,10 +111,16 @@ final class UpdaterForm extends UpdateFormBase {
         default:
           $status_message = '';
       }
+      $project_release = ProjectRelease::createFromArray($update_project['releases'][$update_project['recommended']]);
       $options[$project_name] = [
         $update_project['title'] . $status_message,
         $update_project['existing_version'],
-        $update_project['recommended'],
+        $this->t(
+          '@version (<a href=":url">Release notes</a>)',
+          [
+            '@version' => $project_release->getVersion(),
+            ':url' => $project_release->getReleaseUrl(),
+          ]),
       ];
       $recommended_versions[$project_name] = $update_project['recommended'];
     }