diff --git a/administrator/components/com_joomlaupdate/src/Model/NotificationModel.php b/administrator/components/com_joomlaupdate/src/Model/NotificationModel.php
index 8e422b5b2c708..2114efd2d3803 100644
--- a/administrator/components/com_joomlaupdate/src/Model/NotificationModel.php
+++ b/administrator/components/com_joomlaupdate/src/Model/NotificationModel.php
@@ -14,6 +14,7 @@
 use Joomla\CMS\Component\ComponentHelper;
 use Joomla\CMS\Factory;
 use Joomla\CMS\Helper\UserGroupsHelper;
+use Joomla\CMS\Language\LanguageFactoryInterface;
 use Joomla\CMS\Mail\MailHelper;
 use Joomla\CMS\Mail\MailTemplate;
 use Joomla\CMS\MVC\Model\BaseDatabaseModel;
@@ -71,9 +72,8 @@ public function sendNotification($type, $oldVersion, $newVersion): void
             $emailReceivers  = $this->getEmailReceivers($superUserGroups);
         }
 
-        $app        = Factory::getApplication();
-        $jLanguage  = $app->getLanguage();
-        $sitename   = $app->get('sitename');
+        $app      = Factory::getApplication();
+        $sitename = $app->get('sitename');
 
         $substitutions = [
             'oldversion' => $oldVersion,
@@ -82,17 +82,44 @@ public function sendNotification($type, $oldVersion, $newVersion): void
             'url'        => Uri::root(),
         ];
 
+        // Determine the default admin language and load the language file for the fallback and default language
+        $defaultLocale   = ComponentHelper::getParams('com_languages')->get('administrator', 'en-GB');
+        $defaultLanguage = $app->getLanguage();
+        $defaultLanguage->load('com_joomlaupdate', JPATH_ADMINISTRATOR, 'en-GB', true, true);
+        $defaultLanguage->load('com_joomlaupdate', JPATH_ADMINISTRATOR);
+
         // Send emails to all receivers
         foreach ($emailReceivers as $receiver) {
-            $params = new Registry($receiver->params);
-            $jLanguage->load('com_joomlaupdate', JPATH_ADMINISTRATOR, 'en-GB', true, true);
-            $jLanguage->load('com_joomlaupdate', JPATH_ADMINISTRATOR, $params->get('admin_language', null), true, true);
+            $receiverParams = new Registry($receiver->params);
+            $receiverLocale = $receiverParams->get('admin_language', $defaultLocale);
+
+            // Temporarily set application language to user's language.
+            if ($app->getLanguage()->getTag() !== $receiverLocale) {
+                $receiverLanguage = Factory::getContainer()
+                    ->get(LanguageFactoryInterface::class)
+                    ->createLanguage($receiverLocale, $app->get('debug_lang', false));
+
+                Factory::$language = $receiverLanguage;
+
+                if (method_exists($app, 'loadLanguage')) {
+                    $app->loadLanguage($receiverLanguage);
+                }
 
-            $mailer = new MailTemplate('com_joomlaupdate.update.' . $type, $jLanguage->getTag());
-            $mailer->addRecipient($receiver->email);
+                $receiverLanguage->load('com_joomlaupdate', JPATH_ADMINISTRATOR, $receiverLocale);
+            }
+
+            $mailer = new MailTemplate('com_joomlaupdate.update.' . $type, $receiverLocale);
+            $mailer->addRecipient($receiver->email, $receiver->name);
             $mailer->addTemplateData($substitutions);
             $mailer->send();
         }
+
+        // Set application language back to default
+        Factory::$language = $defaultLanguage;
+
+        if (method_exists($app, 'loadLanguage')) {
+            $app->loadLanguage($defaultLanguage);
+        }
     }
 
     /**
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index a59d8ffa9530b..bef4ff4ded87d 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -2091,7 +2091,7 @@ parameters:
 		-
 			message: '''
 				#^Access to deprecated property \$app of class Joomla\\Component\\Fields\\Administrator\\Plugin\\FieldsPlugin\:
-				5.4.0 will be removed in 7\.0 use \$this\-\>getApplication\(\) instead$#
+				5\.4\.0 will be removed in 7\.0 use \$this\-\>getApplication\(\) instead$#
 			'''
 			identifier: property.deprecated
 			count: 1
@@ -3770,6 +3770,18 @@ parameters:
 			count: 1
 			path: administrator/components/com_joomlaupdate/src/Controller/UpdateController.php
 
+		-
+			message: '''
+				#^Access to deprecated static property \$language of class Joomla\\CMS\\Factory\:
+				4\.3 will be removed in 6\.0
+				             Use the language service in the DI container or get from the application object
+				             Example\:
+				             Factory\:\:getApplication\(\)\-\>getLanguage\(\);$#
+			'''
+			identifier: staticProperty.deprecated
+			count: 2
+			path: administrator/components/com_joomlaupdate/src/Model/NotificationModel.php
+
 		-
 			message: '''
 				#^Call to deprecated method get\(\) of class Joomla\\CMS\\Updater\\Update\:
@@ -3836,16 +3848,6 @@ parameters:
 			count: 1
 			path: administrator/components/com_joomlaupdate/src/Model/UpdateModel.php
 
-		-
-			message: '''
-				#^Call to method getDispatcher\(\) of deprecated interface Joomla\\CMS\\Application\\EventAwareInterface\:
-				4\.3 will be removed in 7\.0
-				             This interface will be removed without replacement as the Joomla 3\.x compatibility layer will be removed$#
-			'''
-			identifier: method.deprecatedInterface
-			count: 2
-			path: administrator/components/com_joomlaupdate/src/Model/UpdateModel.php
-
 		-
 			message: '''
 				#^Call to method set\(\) of deprecated class Joomla\\CMS\\Adapter\\Adapter\: