diff --git a/README.md b/README.md
index 8249ee5..9b64242 100644
--- a/README.md
+++ b/README.md
@@ -10,4 +10,4 @@ Extension for phpBB - Shows a visitor statistic of the current day or a freely s
 ### History
 * phpBB 3.2 Extension fork (c) 2018 by LukeWCS
 * phpBB 3.1 Extension (c) 2015 by Anvar
-* phpBB 3.0 modification (c) 2010 by Joas Schilling [nickvergessen]
+* phpBB 3.0 Modification (c) 2010 by Joas Schilling [nickvergessen]
diff --git a/lf-who-was-here-2_build_changelog.md b/lf-who-was-here-2_build_changelog.md
index 4694eba..bc2a61d 100644
--- a/lf-who-was-here-2_build_changelog.md
+++ b/lf-who-was-here-2_build_changelog.md
@@ -1,8 +1,12 @@
+### 2.2.1
+* Release (2024-12-19)
+* Fehlende typisierte Klassen-Eigenschaften beim Controller und Listener definiert.
+
 #### 2.2.1-b1
 * PHP:
   * Code verwendet jetzt 7.4 Features.
   * Code strikter gestaltet.
-* ext.php`/`composer.json` angepasst:
+* `ext.php`/`composer.json` angepasst:
   * PHP: 7.1.3-8.3.x -> 7.4.0-8.4.x
 * Core:
   * Wie bei "Limit Multiple Replies" werden Rechte jetzt mit der Wrapper Funktion `update_subarray()` (>=phpBB 3.2.1) eingehängt, wodurch das umständliche Extrahieren und Zurückkopieren der Subarrays `$event['categories']` und `$event['permissions']` entfällt.
diff --git a/lf-who-was-here-2_changelog_de.md b/lf-who-was-here-2_changelog_de.md
index ff3bc65..a0b01b9 100644
--- a/lf-who-was-here-2_changelog_de.md
+++ b/lf-who-was-here-2_changelog_de.md
@@ -1,5 +1,5 @@
 ### 2.2.1
-(2024-12- / CDB: --)
+(2024-12-19 / CDB: --)
 
 * Die Voraussetzungen haben sich geändert:
   * PHP: 7.4.0 - 8.4.x (Bisher: 7.1.3 - 8.3.x)
@@ -7,7 +7,7 @@
 * Validierungs-Kritik von 2.2.0 berücksichtigt (3/4).
 
 ### 2.2.0
-(2024-03-06 / CDB: --)
+(2024-03-06 / CDB: 2024-05-13)
 
 * Die Unterstützung für phpBB 3.2 wurde aufgegeben, Minimum ist jetzt phpBB 3.3.0.
 * Rechtesystem:
diff --git a/lukewcs/whowashere/composer.json b/lukewcs/whowashere/composer.json
index a1e271d..caf1d7e 100644
--- a/lukewcs/whowashere/composer.json
+++ b/lukewcs/whowashere/composer.json
@@ -3,8 +3,8 @@
     "type": "phpbb-extension",
     "description": "Shows a visitor statistic of the current day or a freely selectable period. It lists both visitors and bots, as well as numbers on visible members, invisible members, bots and guests. In addition, the extension offers a visitor record and is extensively adjustable.",
     "homepage": "https://www.phpbb.com/customise/db/extension/lf_who_was_here_2/",
-    "version": "2.2.1-b1",
-    "time": "2024-12-16",
+    "version": "2.2.1",
+    "time": "2024-12-19",
     "license": "GPL-2.0-only",
     "authors": [
         {
diff --git a/lukewcs/whowashere/controller/acp_who_was_here_controller.php b/lukewcs/whowashere/controller/acp_who_was_here_controller.php
index 169a181..84e2a74 100644
--- a/lukewcs/whowashere/controller/acp_who_was_here_controller.php
+++ b/lukewcs/whowashere/controller/acp_who_was_here_controller.php
@@ -14,15 +14,16 @@
 
 class acp_who_was_here_controller
 {
-	protected $common;
-	protected $language;
-	protected $template;
-	protected $request;
-	protected $config;
-	protected $user;
-	protected $cache;
-	protected $ext_manager;
-	public $u_action;
+	protected object $common;
+	protected object $language;
+	protected object $template;
+	protected object $request;
+	protected object $config;
+	protected object $user;
+	protected object $cache;
+	protected object $ext_manager;
+
+	public    string $u_action;
 
 	public function __construct(
 		$common,
diff --git a/lukewcs/whowashere/event/listener.php b/lukewcs/whowashere/event/listener.php
index 0ecf014..db6e70d 100644
--- a/lukewcs/whowashere/event/listener.php
+++ b/lukewcs/whowashere/event/listener.php
@@ -16,7 +16,7 @@
 
 class listener implements EventSubscriberInterface
 {
-	protected $wwh;
+	protected object $wwh;
 
 	public function __construct(
 		\lukewcs\whowashere\core\who_was_here $wwh