diff --git a/Classes/Domain/Model/Order/AbstractAddress.php b/Classes/Domain/Model/Order/AbstractAddress.php
index 573cbe5f..0307e54b 100755
--- a/Classes/Domain/Model/Order/AbstractAddress.php
+++ b/Classes/Domain/Model/Order/AbstractAddress.php
@@ -45,6 +45,9 @@ abstract class AbstractAddress extends AbstractEntity
 
     protected string $fax = '';
 
+    /**
+     * @var string don't remove, it's necessary for extbase database mapping
+     */
     protected string $additional = '';
 
     public function toArray(): array
diff --git a/Classes/Domain/Model/Order/Item.php b/Classes/Domain/Model/Order/Item.php
index 4b5bd9d3..fc432306 100644
--- a/Classes/Domain/Model/Order/Item.php
+++ b/Classes/Domain/Model/Order/Item.php
@@ -44,6 +44,9 @@ class Item extends AbstractEntity
 
     protected string $additionalData = '';
 
+    /**
+     * @var string don't remove, it's necessary for extbase database mapping
+     */
     protected string $additional = '';
 
     protected string $currency = '€';
diff --git a/Documentation/guides.xml b/Documentation/guides.xml
index e8c463c5..2f73fc06 100644
--- a/Documentation/guides.xml
+++ b/Documentation/guides.xml
@@ -11,7 +11,7 @@
                interlink-shortcode="extcode/cart"
     />
     <project title="Cart"
-             release="10.2.6"
+             release="10.2.7"
              version="10.2"
              copyright="2018 - 2024"
     />
diff --git a/ext_emconf.php b/ext_emconf.php
index 16d29a07..d90b4988 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -4,7 +4,7 @@
     'title' => 'Cart',
     'description' => 'Shopping Cart(s) for TYPO3',
     'category' => 'plugin',
-    'version' => '10.2.6',
+    'version' => '10.2.7',
     'state' => 'stable',
     'author' => 'Daniel Gohlke',
     'author_email' => 'ext@extco.de',