diff --git a/src/Controller/GameController.php b/src/Controller/GameController.php
index 5acf367..b700b0e 100644
--- a/src/Controller/GameController.php
+++ b/src/Controller/GameController.php
@@ -32,7 +32,7 @@ use Symfony\Component\Routing\Attribute\Route;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  */
 #[AsController]
 class GameController extends AbstractController
diff --git a/src/Controller/MercureController.php b/src/Controller/MercureController.php
index e8a57d4..c1fbac7 100644
--- a/src/Controller/MercureController.php
+++ b/src/Controller/MercureController.php
@@ -2,7 +2,7 @@
 /**
  * This file is part of the SplendidBear Websites' projects.
  *
- * Copyright (c) 2019 @ www.splendidbear.org
+ * Copyright (c) 2026 @ www.splendidbear.org
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
diff --git a/src/Entity/Gamer.php b/src/Entity/Gamer.php
index 7142f69..ac526c2 100644
--- a/src/Entity/Gamer.php
+++ b/src/Entity/Gamer.php
@@ -26,7 +26,7 @@ use Doctrine\ORM\Mapping\Id;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  */
 #[Entity(repositoryClass: GamerRepository::class)]
 class Gamer
diff --git a/src/Entity/Grid.php b/src/Entity/Grid.php
index 313e3e9..c4acf14 100644
--- a/src/Entity/Grid.php
+++ b/src/Entity/Grid.php
@@ -2,7 +2,7 @@
 /*
  * This file is part of the SplendidBear Websites' projects.
  *
- * Copyright (c) 2026 @ www.splendidbear.org
+ * Copyright (c) 2019 @ www.splendidbear.org
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
@@ -29,7 +29,7 @@ use Doctrine\ORM\Mapping\OneToOne;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  */
 #[Entity(repositoryClass: GridRepository::class)]
 class Grid
diff --git a/src/Entity/GridRow.php b/src/Entity/GridRow.php
index 9640535..e68a7dd 100644
--- a/src/Entity/GridRow.php
+++ b/src/Entity/GridRow.php
@@ -2,7 +2,7 @@
 /**
  * This file is part of the SplendidBear Websites' projects.
  *
- * Copyright (c) 2026 @ www.splendidbear.org
+ * Copyright (c) 2019 @ www.splendidbear.org
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
@@ -27,7 +27,7 @@ use Doctrine\ORM\Mapping\ManyToOne;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  */
 #[Entity(repositoryClass: GridRowRepository::class)]
 class GridRow
diff --git a/src/Entity/PlayedGame.php b/src/Entity/PlayedGame.php
index 2b0ecfa..329cfb1 100644
--- a/src/Entity/PlayedGame.php
+++ b/src/Entity/PlayedGame.php
@@ -2,7 +2,7 @@
 /*
  * This file is part of the SplendidBear Websites' projects.
  *
- * Copyright (c) 2026 @ www.splendidbear.org
+ * Copyright (c) 2019 @ www.splendidbear.org
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
@@ -33,7 +33,7 @@ use Symfony\Component\Uid\Uuid;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  */
 #[Entity(repositoryClass: PlayedGameRepository::class)]
 class PlayedGame
diff --git a/src/Entity/Step.php b/src/Entity/Step.php
index 7d2258b..c3ade67 100644
--- a/src/Entity/Step.php
+++ b/src/Entity/Step.php
@@ -2,7 +2,7 @@
 /**
  * This file is part of the SplendidBear Websites' projects.
  *
- * Copyright (c) 2026 @ www.splendidbear.org
+ * Copyright (c) 2019 @ www.splendidbear.org
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
@@ -27,7 +27,7 @@ use Doctrine\ORM\Mapping\ManyToOne;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  */
 #[Entity(repositoryClass: StepRepository::class)]
 class Step
diff --git a/src/Repository/GamerRepository.php b/src/Repository/GamerRepository.php
index 257bc4c..db5a978 100644
--- a/src/Repository/GamerRepository.php
+++ b/src/Repository/GamerRepository.php
@@ -22,7 +22,7 @@ use Doctrine\Persistence\ManagerRegistry;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  */
 class GamerRepository extends ServiceEntityRepository
 {
diff --git a/src/Repository/GridRepository.php b/src/Repository/GridRepository.php
index e7c0a0a..5ef71a8 100644
--- a/src/Repository/GridRepository.php
+++ b/src/Repository/GridRepository.php
@@ -22,7 +22,7 @@ use Doctrine\Persistence\ManagerRegistry;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  *
  * @method Grid|null find($id, $lockMode = null, $lockVersion = null)
  * @method Grid|null findOneBy(array $criteria, array $orderBy = null)
diff --git a/src/Repository/GridRowRepository.php b/src/Repository/GridRowRepository.php
index 29a647d..af00989 100644
--- a/src/Repository/GridRowRepository.php
+++ b/src/Repository/GridRowRepository.php
@@ -22,7 +22,7 @@ use Doctrine\Persistence\ManagerRegistry;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  *
  * @method GridRow|null find($id, $lockMode = null, $lockVersion = null)
  * @method GridRow|null findOneBy(array $criteria, array $orderBy = null)
diff --git a/src/Repository/PlayedGameRepository.php b/src/Repository/PlayedGameRepository.php
index 43d3352..e4985ee 100644
--- a/src/Repository/PlayedGameRepository.php
+++ b/src/Repository/PlayedGameRepository.php
@@ -24,7 +24,7 @@ use Doctrine\Persistence\ManagerRegistry;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  *
  * @method PlayedGame|null find($id, $lockMode = null, $lockVersion = null)
  * @method PlayedGame|null findOneBy(array $criteria, array $orderBy = null)
diff --git a/src/Repository/StepRepository.php b/src/Repository/StepRepository.php
index 08360b9..4f120f0 100644
--- a/src/Repository/StepRepository.php
+++ b/src/Repository/StepRepository.php
@@ -25,7 +25,7 @@ use RuntimeException;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  *
  * @method Step|null find($id, $lockMode = null, $lockVersion = null)
  * @method Step|null findOneBy(array $criteria, array $orderBy = null)
diff --git a/src/Service/BattleCardGenerator.php b/src/Service/BattleCardGenerator.php
index af60cf9..7f3b1a6 100644
--- a/src/Service/BattleCardGenerator.php
+++ b/src/Service/BattleCardGenerator.php
@@ -30,7 +30,7 @@ use Symfony\Component\Uid\Uuid;
  * @link     www.splendidbear.org
  * @since    2026. 04. 14.
  */
-class BattleCardGenerator
+final class BattleCardGenerator
 {
     private const int    WIDTH       = 1200;
     private const int    HEIGHT      = 630;
diff --git a/src/Service/RecaptchaService.php b/src/Service/RecaptchaService.php
index 4184f97..5530e53 100644
--- a/src/Service/RecaptchaService.php
+++ b/src/Service/RecaptchaService.php
@@ -24,7 +24,7 @@ use Symfony\Contracts\HttpClient\HttpClientInterface;
  * @link     www.splendidbear.org
  * @since    2026. 04. 12.
  */
-readonly class RecaptchaService
+readonly final class RecaptchaService
 {
     private const string SITEVERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify';
 
diff --git a/src/Service/WebAuthnService.php b/src/Service/WebAuthnService.php
index c4f484f..d9e88a7 100644
--- a/src/Service/WebAuthnService.php
+++ b/src/Service/WebAuthnService.php
@@ -28,7 +28,7 @@ use RuntimeException;
  * @link     www.splendidbear.org
  * @since    2026. 04. 12.
  */
-readonly class WebAuthnService
+readonly final class WebAuthnService
 {
     public function __construct(
         private WebAuthnCredentialRepository $credentialRepository,
diff --git a/src/Util/RpcManager.php b/src/Util/RpcManager.php
index 208748a..e9a5c0c 100644
--- a/src/Util/RpcManager.php
+++ b/src/Util/RpcManager.php
@@ -33,7 +33,7 @@ use Symfony\Component\Uid\Uuid;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  */
 class RpcManager implements RpcManagerInterface
 {
diff --git a/src/Util/TopicManager.php b/src/Util/TopicManager.php
index d437b8c..81e3c9a 100644
--- a/src/Util/TopicManager.php
+++ b/src/Util/TopicManager.php
@@ -38,7 +38,7 @@ use Symfony\Component\Mercure\Update;
  * @category Class
  * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
  * @link     www.splendidbear.org
- * @since    2026. 04. 09.
+ * @since    2019. 10. 27.
  */
 readonly class TopicManager implements TopicManagerInterface
 {