diff --git a/LICENSE b/LICENSE
index cf8c1f7..f06993c 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@ Additional Use Grant: You may use the Licensed Work when your application
                       uses the Licensed Work for a purpose that does neither
                       directly or indirectly generate revenue.
 
-Change Date:          2026-09-19
+Change Date:          2026-10-13
 
 Change License:       Version 2 or later of the GNU General Public License as
                       published by the Free Software Foundation.
diff --git a/files/lib/data/message/ViewableMessage.class.php b/files/lib/data/message/ViewableMessage.class.php
index 74a9e9e..1891fb3 100644
--- a/files/lib/data/message/ViewableMessage.class.php
+++ b/files/lib/data/message/ViewableMessage.class.php
@@ -6,7 +6,7 @@
  * Use of this software is governed by the Business Source License
  * included in the LICENSE file.
  *
- * Change Date: 2026-09-17
+ * Change Date: 2026-10-13
  *
  * On the date above, in accordance with the Business Source
  * License, use of this software will be governed by version 2
@@ -40,7 +40,7 @@ class ViewableMessage extends DatabaseObjectDecorator implements \JsonSerializab
     /**
      * @inheritDoc
      */
-    public function jsonSerialize()
+    public function jsonSerialize(): array
     {
         $link = LinkHandler::getInstance()->getControllerLink(
             LogPage::class,
diff --git a/files/lib/data/room/Room.class.php b/files/lib/data/room/Room.class.php
index a84722d..a028d2a 100644
--- a/files/lib/data/room/Room.class.php
+++ b/files/lib/data/room/Room.class.php
@@ -6,7 +6,7 @@
  * Use of this software is governed by the Business Source License
  * included in the LICENSE file.
  *
- * Change Date: 2026-09-17
+ * Change Date: 2026-10-13
  *
  * On the date above, in accordance with the Business Source
  * License, use of this software will be governed by version 2
@@ -294,7 +294,7 @@ final class Room extends DatabaseObject implements
     /**
      * @inheritDoc
      */
-    public function jsonSerialize()
+    public function jsonSerialize(): array
     {
         return [
             'title' => $this->getTitle(),
diff --git a/files/lib/data/suspension/Suspension.class.php b/files/lib/data/suspension/Suspension.class.php
index 35c30ab..09b8850 100644
--- a/files/lib/data/suspension/Suspension.class.php
+++ b/files/lib/data/suspension/Suspension.class.php
@@ -6,7 +6,7 @@
  * Use of this software is governed by the Business Source License
  * included in the LICENSE file.
  *
- * Change Date: 2026-09-17
+ * Change Date: 2026-10-13
  *
  * On the date above, in accordance with the Business Source
  * License, use of this software will be governed by version 3
@@ -102,7 +102,7 @@ class Suspension extends DatabaseObject implements \JsonSerializable
     /**
      * @inheritDoc
      */
-    public function jsonSerialize()
+    public function jsonSerialize(): array
     {
         return [
             'userID' => $this->userID,
diff --git a/files/lib/data/user/User.class.php b/files/lib/data/user/User.class.php
index d08d19a..b764bbb 100644
--- a/files/lib/data/user/User.class.php
+++ b/files/lib/data/user/User.class.php
@@ -6,7 +6,7 @@
  * Use of this software is governed by the Business Source License
  * included in the LICENSE file.
  *
- * Change Date: 2026-09-17
+ * Change Date: 2026-10-13
  *
  * On the date above, in accordance with the Business Source
  * License, use of this software will be governed by version 2
@@ -110,7 +110,7 @@ class User extends DatabaseObjectDecorator implements \JsonSerializable
     /**
      * @inheritDoc
      */
-    public function jsonSerialize()
+    public function jsonSerialize(): array
     {
         return [
             'userID' => $this->userID,