diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a79a62..bdd6004 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+whiteListCom 1.4 - 2023.10.11
+===========================================================
+* Require Dotclear 2.27
+* Require PHP 8.1
+* Upgrade to Dotclear 2.28
+
 whiteListCom 1.3.1 - 2023.08.13
 ===========================================================
 * Require Dotclear 2.27
diff --git a/README.md b/README.md
index b0e0304..f9bcb2a 100644
--- a/README.md
+++ b/README.md
@@ -1,26 +1,22 @@
 # README
 
-[![Release](https://img.shields.io/badge/release-1.3.1-a2cbe9.svg)](https://git.dotclear.watch/JcDenis/whiteListCom/releases)
-[![Date](https://img.shields.io/badge/date-2023.08.13-c44d58.svg)](https://git.dotclear.watch/JcDenis/whiteListCom/releases)
-[![Dotclear](https://img.shields.io/badge/dotclear-v2.27-137bbb.svg)](https://fr.dotclear.org/download)
+[![Release](https://img.shields.io/badge/release-1.4-a2cbe9.svg)](https://git.dotclear.watch/JcDenis/whiteListCom/releases)
+![Date](https://img.shields.io/badge/date-2023.10.11-c44d58.svg)
+[![Dotclear](https://img.shields.io/badge/dotclear-v2.28-137bbb.svg)](https://fr.dotclear.org/download)
 [![Dotaddict](https://img.shields.io/badge/dotaddict-official-9ac123.svg)](https://plugins.dotaddict.org/dc2/details/whiteListCom)
 [![License](https://img.shields.io/github/license/JcDenis/whiteListCom)](https://git.dotclear.watch/JcDenis/whiteListCom/blob/master/LICENSE)
 
-## WHAT IS WHITELISTCOM ?
+## ABOUT
 
-_whiteListCom_ "White list for comments" is a plugin for the open-source 
-web publishing software called Dotclear.
+_tinyPacker_ is a plugin for the open-source web publishing software called [Dotclear](https://www.dotclear.org).
 
-Set up a list of users which can publish comments without validation 
-and a list of reserved names (pair of nickname / email ).
+> Set up a list of users which can publish comments without validation and a list of reserved names (pair of nickname / email ).
 
 ## REQUIREMENTS
 
-_whiteListCom_ requires: 
-
+* Dotclear 2.28
+* PHP 8.1+
 * permissions to manage antispam
-* Dotclear 2.27
-* PHP 7.4
 
 ## USAGE
 
@@ -33,12 +29,13 @@ Note: User must write a comment before able to be added to the list.
 
 ## LINKS
 
-* License : [GNU GPL v2](https://www.gnu.org/licenses/old-licenses/lgpl-2.0.html)
-* Source & contribution : [Gitea Page](https://git.dotclear.watch/JcDenis/whiteListCom) or [GitHub Page](https://github.com/JcDenis/whiteListCom)
-* Packages & details: [Gitea Page](https://git.dotclear.watch/JcDenis/whiteListCom/releases) or [Dotaddict Page](https://plugins.dotaddict.org/dc2/details/whiteListCom)
+* [License](https://git.dotclear.watch/JcDenis/whiteListCom/src/branch/master/LICENSE)
+* [Packages & details](https://git.dotclear.watch/JcDenis/whiteListCom/releases) (or on [Dotaddict](https://plugins.dotaddict.org/dc2/details/whiteListCom))
+* [Sources & contributions](https://git.dotclear.watch/JcDenis/whiteListCom) (or on [GitHub](https://github.com/JcDenis/whiteListCom))
+* [Issues & security](https://git.dotclear.watch/JcDenis/whiteListCom/issues) (or on [GitHub](https://github.com/JcDenis/whiteListCom/issues))
 
 ## CONTRIBUTORS
 
-* Jean-Christian Denis
+* Jean-Christian Denis (author)
 
 You are welcome to contribute to this code.
diff --git a/_define.php b/_define.php
index 0a17894..83a240d 100644
--- a/_define.php
+++ b/_define.php
@@ -1,37 +1,33 @@
 <?php
 /**
- * @brief whiteListCom, a plugin for Dotclear 2
+ * @file
+ * @brief       The plugin whiteListCom definition
+ * @ingroup     whiteListCom
  *
- * @package Dotclear
- * @subpackage Plugin
+ * @defgroup    whiteListCom Plugin whiteListCom.
  *
- * @author Jean-Christian Denis and Contributors
+ * Whitelists for comments moderation.
  *
- * @copyright Jean-Christian Denis
- * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ * @author      Jean-Christian Denis
+ * @copyright   GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-if (!defined('DC_RC_PATH')) {
-    return null;
-}
+declare(strict_types=1);
 
 $this->registerModule(
     'Whitelist comments',
     'Whitelists for comments moderation',
     'Jean-Christian Denis and Contributors',
-    '1.3.1',
+    '1.4',
     [
         'requires' => [
-            ['core', '2.27'],
+            ['core', '2.28'],
             ['antispam', '2.0'],
         ],
-        'permissions' => dcCore::app()->auth->makePermissions([
-            dcCore::app()->auth::PERMISSION_USAGE,
-            dcCore::app()->auth::PERMISSION_CONTENT_ADMIN,
-        ]),
-        'priority'   => 200,
-        'type'       => 'plugin',
-        'support'    => 'https://git.dotclear.watch/JcDenis/' . basename(__DIR__) . '/issues',
-        'details'    => 'https://git.dotclear.watch/JcDenis/' . basename(__DIR__) . '/src/branch/master/README.md',
-        'repository' => 'https://git.dotclear.watch/JcDenis/' . basename(__DIR__) . '/raw/branch/master/dcstore.xml',
+        'permissions' => 'My',
+        'priority'    => 200,
+        'type'        => 'plugin',
+        'support'     => 'https://git.dotclear.watch/JcDenis/' . basename(__DIR__) . '/issues',
+        'details'     => 'https://git.dotclear.watch/JcDenis/' . basename(__DIR__) . '/src/branch/master/README.md',
+        'repository'  => 'https://git.dotclear.watch/JcDenis/' . basename(__DIR__) . '/raw/branch/master/dcstore.xml',
     ]
 );
diff --git a/dcstore.xml b/dcstore.xml
index 5260b38..6c21ba2 100644
--- a/dcstore.xml
+++ b/dcstore.xml
@@ -2,11 +2,11 @@
 <modules xmlns:da="http://dotaddict.org/da/">
   <module id="whiteListCom">
     <name>Whitelist comments</name>
-    <version>1.3.1</version>
+    <version>1.4</version>
     <author>Jean-Christian Denis and Contributors</author>
     <desc>Whitelists for comments moderation</desc>
-    <file>https://git.dotclear.watch/JcDenis/whiteListCom/releases/download/v1.3.1/plugin-whiteListCom.zip</file>
-    <da:dcmin>2.27</da:dcmin>
+    <file>https://git.dotclear.watch/JcDenis/whiteListCom/releases/download/v1.4/plugin-whiteListCom.zip</file>
+    <da:dcmin>2.28</da:dcmin>
     <da:details>https://git.dotclear.watch/JcDenis/whiteListCom/src/branch/master/README.md</da:details>
     <da:support>https://git.dotclear.watch/JcDenis/whiteListCom/issues</da:support>
   </module>
diff --git a/src/Install.php b/src/Install.php
index 0a4e855..ed5e8f9 100644
--- a/src/Install.php
+++ b/src/Install.php
@@ -1,27 +1,27 @@
 <?php
-/**
- * @brief whiteListCom, a plugin for Dotclear 2
- *
- * @package Dotclear
- * @subpackage Plugin
- *
- * @author Jean-Christian Denis and Contributors
- *
- * @copyright Jean-Christian Denis
- * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
- */
+
 declare(strict_types=1);
 
 namespace Dotclear\Plugin\whiteListCom;
 
-use dcCore;
-use dcNamespace;
+use Dotclear\App;
 use Dotclear\Core\Process;
 use Exception;
 
+/**
+ * @brief   whiteListCom install class.
+ * @ingroup whiteListCom
+ *
+ * @author      Jean-Christian Denis
+ * @copyright   GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
 class Install extends Process
 {
-    // Module specs
+    /**
+     * Module specs.
+     *
+     * @var     array<int,array<int,string|array>>  $mod_conf
+     */
     private static array $mod_conf = [
         [
             'unmoderated',
@@ -66,7 +66,7 @@ class Install extends Process
 
             return true;
         } catch (Exception $e) {
-            dcCore::app()->error->add($e->getMessage());
+            App::error()->add($e->getMessage());
 
             return false;
         }
@@ -74,25 +74,25 @@ class Install extends Process
 
     public static function growUp(): void
     {
-        $current = dcCore::app()->getVersion(My::id());
+        $current = App::version()->getVersion(My::id());
 
         // Update settings id, ns
         if ($current && version_compare($current, '1.0', '<')) {
-            $record = dcCore::app()->con->select(
-                'SELECT * FROM ' . dcCore::app()->prefix . dcNamespace::NS_TABLE_NAME . ' ' .
+            $record = App::con()->select(
+                'SELECT * FROM ' . App::con()->prefix() . App::blogWorkspace()::NS_TABLE_NAME . ' ' .
                 "WHERE setting_ns = 'whiteListCom' "
             );
 
             while ($record->fetch()) {
                 if (preg_match('/^whiteListCom(.*?)$/', $record->f('setting_id'), $match)) {
                     $value = @unserialize(@base64_decode($record->f('setting_value')));
-                    $cur   = dcCore::app()->con->openCursor(dcCore::app()->prefix . dcNamespace::NS_TABLE_NAME);
+                    $cur   = App::blogWorkspace()->openBlogWorkspaceCursor();
                     $cur->setField('setting_id', $match[1]);
                     $cur->setField('setting_ns', My::id());
                     $cur->setField('setting_value', is_array($value) ? json_encode($value) : '[]');
                     $cur->update(
                         "WHERE setting_id = '" . $record->f('setting_id') . "' and setting_ns = 'whiteListCom' " .
-                        'AND blog_id ' . (null === $record->f('blog_id') ? 'IS NULL ' : ("= '" . dcCore::app()->con->escapeStr((string) $record->f('blog_id')) . "' "))
+                        'AND blog_id ' . (null === $record->f('blog_id') ? 'IS NULL ' : ("= '" . App::con()->escapeStr((string) $record->f('blog_id')) . "' "))
                     );
                 }
             }
diff --git a/src/My.php b/src/My.php
index 3ebb626..15a568b 100644
--- a/src/My.php
+++ b/src/My.php
@@ -1,15 +1,5 @@
 <?php
-/**
- * @brief whiteListCom, a plugin for Dotclear 2
- *
- * @package Dotclear
- * @subpackage Plugin
- *
- * @author Jean-Christian Denis and Contributors
- *
- * @copyright Jean-Christian Denis
- * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
- */
+
 declare(strict_types=1);
 
 namespace Dotclear\Plugin\whiteListCom;
@@ -17,8 +7,13 @@ namespace Dotclear\Plugin\whiteListCom;
 use Dotclear\Module\MyPlugin;
 
 /**
- * This module definitions.
+ * @brief   whiteListCom My helper.
+ * @ingroup whiteListCom
+ *
+ * @author      Jean-Christian Denis
+ * @copyright   GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
 class My extends MyPlugin
 {
+    // Use default permissions
 }
diff --git a/src/Prepend.php b/src/Prepend.php
index d6026f3..6fc3f82 100644
--- a/src/Prepend.php
+++ b/src/Prepend.php
@@ -1,23 +1,21 @@
 <?php
-/**
- * @brief whiteListCom, a plugin for Dotclear 2
- *
- * @package Dotclear
- * @subpackage Plugin
- *
- * @author Jean-Christian Denis and Contributors
- *
- * @copyright Jean-Christian Denis
- * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
- */
+
 declare(strict_types=1);
 
 namespace Dotclear\Plugin\whiteListCom;
 
-use dcBlog;
-use dcCore;
+use ArrayObject;
+use Dotclear\App;
 use Dotclear\Core\Process;
+use Dotclear\Database\Cursor;
 
+/**
+ * @brief   whiteListCom prepend class.
+ * @ingroup whiteListCom
+ *
+ * @author      Jean-Christian Denis
+ * @copyright   GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
 class Prepend extends Process
 {
     public static function init(): bool
@@ -31,30 +29,32 @@ class Prepend extends Process
             return false;
         }
 
-        dcCore::app()->spamfilters[] = UnmoderatedWhiteList::class;
-        dcCore::app()->spamfilters[] = ReservedWhiteList::class;
+        App::behavior()->addBehaviors([
+            'AntispamInitFilters' => function (ArrayObject $spamfilters): void {
+                $spamfilters[] = UnmoderatedWhiteList::class;
+                $spamfilters[] = ReservedWhiteList::class;
+            },
+            'publicAfterCommentCreate' => function (Cursor $cur, int $id): void {
+                if (!App::blog()->isDefined() || App::blog()->settings()->get('system')->get('comments_pub')) {
+                    return;
+                }
 
-        dcCore::app()->addBehavior('publicAfterCommentCreate', function ($cur, $id): void {
-            if (dcCore::app()->blog === null
-             || dcCore::app()->blog->settings->get('system')->get('comments_pub')) {
-                return;
-            }
+                if ($cur->__get('comment_spam_filter') == 'UnmoderatedWhiteList'
+                 && $cur->__get('comment_spam_status') == 'unmoderated') {
+                    App::con()->writeLock(App::con()->prefix() . App::blog()::COMMENT_TABLE_NAME);
 
-            if ($cur->__get('comment_spam_filter') == 'UnmoderatedWhiteList'
-             && $cur->__get('comment_spam_status') == 'unmoderated') {
-                dcCore::app()->con->writeLock(dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME);
+                    $cur->__set('comment_status', 1);
+                    $cur->__set('comment_spam_status', 0);
+                    $cur->__set('comment_spam_filter', 0);
+                    $cur->update('WHERE comment_id = ' . $id . ' ');
 
-                $cur->__set('comment_status', 1);
-                $cur->__set('comment_spam_status', 0);
-                $cur->__set('comment_spam_filter', 0);
-                $cur->update('WHERE comment_id = ' . $id . ' ');
+                    App::con()->unlock();
 
-                dcCore::app()->con->unlock();
-
-                dcCore::app()->blog->triggerComment($id);
-                dcCore::app()->blog->triggerBlog();
-            }
-        });
+                    App::blog()->triggerComment($id);
+                    App::blog()->triggerBlog();
+                }
+            },
+        ]);
 
         return true;
     }
diff --git a/src/ReservedWhiteList.php b/src/ReservedWhiteList.php
index c5343d9..7575a08 100644
--- a/src/ReservedWhiteList.php
+++ b/src/ReservedWhiteList.php
@@ -1,20 +1,10 @@
 <?php
-/**
- * @brief whiteListCom, a plugin for Dotclear 2
- *
- * @package Dotclear
- * @subpackage Plugin
- *
- * @author Jean-Christian Denis and Contributors
- *
- * @copyright Jean-Christian Denis
- * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
- */
+
 declare(strict_types=1);
 
 namespace Dotclear\Plugin\whiteListCom;
 
-use dcCore;
+use Dotclear\App;
 use Dotclear\Core\Backend\Notices;
 use Dotclear\Helper\Html\Form\{
     Checkbox,
@@ -26,19 +16,18 @@ use Dotclear\Plugin\antispam\SpamFilter;
 use Exception;
 
 /**
- * @ingroup DC_PLUGIN_WHITELISTCOM
- * @brief Filter for reserved names.
- * @since 2.6
+ * @brief   whiteListCom resserved name antispam filter.
+ * @ingroup whiteListCom
+ *
+ * @author      Jean-Christian Denis
+ * @copyright   GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
 class ReservedWhiteList extends SpamFilter
 {
-    public $name    = 'Reserved names';
-    public $has_gui = true;
+    public string $name  = 'Reserved names';
+    public bool $has_gui = true;
 
-    /**
-     * @return  void
-     */
-    protected function setInfo()
+    protected function setInfo(): void
     {
         $this->name        = __('Reserved names');
         $this->description = __('Whitelist of reserved names of users');
@@ -47,7 +36,7 @@ class ReservedWhiteList extends SpamFilter
     /**
      * @return  void|null|bool
      */
-    public function isSpam($type, $author, $email, $site, $ip, $content, $post_id, &$status)
+    public function isSpam(string $type, ?string $author, ?string $email, ?string $site, ?string $ip, ?string $content, ?int $post_id, string &$status)
     {
         if ($type != 'comment') {
             return null;
@@ -72,10 +61,7 @@ class ReservedWhiteList extends SpamFilter
         }
     }
 
-    /**
-     * @return  string
-     */
-    public function getStatusMessage($status, $comment_id)
+    public function getStatusMessage(string $status, ?int $comment_id): string
     {
         return __('This name is reserved to an other user.');
     }
@@ -97,7 +83,7 @@ class ReservedWhiteList extends SpamFilter
 
             $comments = Utils::getCommentsUsers();
         } catch (Exception $e) {
-            dcCore::app()->error->add($e->getMessage());
+            App::error()->add($e->getMessage());
         }
 
         $res = '<form action="' . Html::escapeURL($url) . '" method="post">' .
@@ -124,7 +110,7 @@ class ReservedWhiteList extends SpamFilter
         $res .= '</tbody>' .
         '</table>' .
         '<p><input type="submit" name="update_reserved" value="' . __('Save') . '" />' .
-        dcCore::app()->formNonce() . '</p>' .
+        App::nonce()->getFormNonce() . '</p>' .
         '</form>';
 
         return $res;
diff --git a/src/Uninstall.php b/src/Uninstall.php
index f411ecb..5099c62 100644
--- a/src/Uninstall.php
+++ b/src/Uninstall.php
@@ -1,23 +1,19 @@
 <?php
-/**
- * @brief whiteListCom, a plugin for Dotclear 2
- *
- * @package Dotclear
- * @subpackage Plugin
- *
- * @author Jean-Christian Denis and Contributors
- *
- * @copyright Jean-Christian Denis
- * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
- */
+
 declare(strict_types=1);
 
 namespace Dotclear\Plugin\whiteListCom;
 
-use dcCore;
 use Dotclear\Core\Process;
 use Dotclear\Plugin\Uninstaller\Uninstaller;
 
+/**
+ * @brief   whiteListCom uninstall class.
+ * @ingroup whiteListCom
+ *
+ * @author      Jean-Christian Denis
+ * @copyright   GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
 class Uninstall extends Process
 {
     public static function init(): bool
@@ -27,7 +23,7 @@ class Uninstall extends Process
 
     public static function process(): bool
     {
-        if (!self::status() || !dcCore::app()->plugins->moduleExists('Uninstaller')) {
+        if (!self::status()) {
             return false;
         }
 
diff --git a/src/UnmoderatedWhiteList.php b/src/UnmoderatedWhiteList.php
index 5dfb455..e471297 100644
--- a/src/UnmoderatedWhiteList.php
+++ b/src/UnmoderatedWhiteList.php
@@ -1,21 +1,11 @@
 <?php
-/**
- * @brief whiteListCom, a plugin for Dotclear 2
- *
- * @package Dotclear
- * @subpackage Plugin
- *
- * @author Jean-Christian Denis and Contributors
- *
- * @copyright Jean-Christian Denis
- * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
- */
+
 declare(strict_types=1);
 
 namespace Dotclear\Plugin\whiteListCom;
 
-use dcCore;
-use Dotclear\COre\Backend\Notices;
+use Dotclear\App;
+use Dotclear\Core\Backend\Notices;
 use Dotclear\Helper\Html\Form\Checkbox;
 use Dotclear\Helper\Html\Html;
 use Dotclear\Helper\Network\Http;
@@ -23,21 +13,18 @@ use Dotclear\Plugin\antispam\SpamFilter;
 use Exception;
 
 /**
- * @ingroup DC_PLUGIN_WHITELISTCOM
- * @brief Filter for unmoderated authors.
- * @since 2.6
+ * @brief   whiteListCom unmoderated antispam filter.
+ * @ingroup whiteListCom
  *
- * This filter is used only if comments are moderates
+ * @author      Jean-Christian Denis
+ * @copyright   GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
 class UnmoderatedWhiteList extends SpamFilter
 {
-    public $name    = 'Unmoderated authors';
-    public $has_gui = true;
+    public string $name  = 'Unmoderated authors';
+    public bool $has_gui = true;
 
-    /**
-     * @return  void
-     */
-    protected function setInfo()
+    protected function setInfo(): void
     {
         $this->name        = __('Unmoderated authors');
         $this->description = __('Whitelist of unmoderated authors');
@@ -46,11 +33,11 @@ class UnmoderatedWhiteList extends SpamFilter
     /**
      * @return  void|null|bool
      */
-    public function isSpam($type, $author, $email, $site, $ip, $content, $post_id, &$status)
+    public function isSpam(string $type, ?string $author, ?string $email, ?string $site, ?string $ip, ?string $content, ?int $post_id, string &$status)
     {
         if ($type != 'comment'
-         || dcCore::app()->blog === null
-         || dcCore::app()->blog->settings->get('system')->get('comments_pub')) {
+         || !App::blog()->isDefined()
+         || App::blog()->settings()->get('system')->get('comments_pub')) {
             return null;
         }
 
@@ -85,12 +72,12 @@ class UnmoderatedWhiteList extends SpamFilter
             $posts    = Utils::getPostsUsers();
             $comments = Utils::getCommentsUsers();
         } catch (Exception $e) {
-            dcCore::app()->error->add($e->getMessage());
+            App::error()->add($e->getMessage());
         }
 
         $res = '';
 
-        if (!is_null(dcCore::app()->blog) && dcCore::app()->blog->settings->get('system')->get('comments_pub')) {
+        if (App::blog()->isDefined() && App::blog()->settings()->get('system')->get('comments_pub')) {
             $res .= '<p class="message">' .
             __('This filter is used only if comments are moderates') .
             '</p>';
@@ -141,7 +128,7 @@ class UnmoderatedWhiteList extends SpamFilter
         '</div>' .
         '</div>' .
         '<p><input type="submit" id="update_unmoderated" name="update_unmoderated" value="' . __('Save') . '" />' .
-        dcCore::app()->formNonce() . '</p>' .
+        App::nonce()->getFormNonce() . '</p>' .
         '</form>';
 
         return $res;
diff --git a/src/Utils.php b/src/Utils.php
index dd4975b..0bb9b26 100644
--- a/src/Utils.php
+++ b/src/Utils.php
@@ -1,41 +1,43 @@
 <?php
-/**
- * @brief whiteListCom, a plugin for Dotclear 2
- *
- * @package Dotclear
- * @subpackage Plugin
- *
- * @author Jean-Christian Denis and Contributors
- *
- * @copyright Jean-Christian Denis
- * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
- */
+
 declare(strict_types=1);
 
 namespace Dotclear\Plugin\whiteListCom;
 
-use dcBlog;
-use dcCore;
-use dcUtils;
+use Dotclear\App;
 use Dotclear\Database\Statement\{
     JoinStatement,
     SelectStatement,
 };
 
 /**
- * @ingroup DC_PLUGIN_WHITELISTCOM
- * @brief White list filters methods
- * @since 2.6
+ * @brief   whiteListCom utils.
+ * @ingroup whiteListCom
+ *
+ * @author      Jean-Christian Denis
+ * @copyright   GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
 class Utils
 {
-    /** @var    bool    $init   preload check */
+    /**
+     * Preload check.
+     *
+     *  @var    bool    $init
+     */
     private static bool $init = false;
 
-    /** @var    array   $unmoderated    List of unmoderated users */
+    /**
+     * List of unmoderated users.
+     *
+     * @var     array<int,string>   $unmoderated
+     */
     private static array $unmoderated = [];
 
-    /** @var    array   $unmoderated    List of reserved name */
+    /**
+     * List of reserved name.
+     *
+     * @var     array<string,string>    $reserved
+     */
     private static array $reserved = [];
 
     /**
@@ -185,18 +187,18 @@ class Utils
      */
     public static function getPostsUsers(): array
     {
-        if (is_null(dcCore::app()->blog)) {
+        if (!App::blog()->isDefined()) {
             return [];
         }
 
-        $rs = dcCore::app()->blog->getPostsUsers();
+        $rs = App::blog()->getPostsUsers();
         if ($rs->isEmpty()) {
             return [];
         }
 
         $users = [];
         while ($rs->fetch()) {
-            $name = dcUtils::getUserCN(
+            $name = App::users()->getUserCN(
                 $rs->f('user_id'),
                 $rs->f('user_name'),
                 $rs->f('user_firstname'),
@@ -218,12 +220,12 @@ class Utils
      */
     public static function getCommentsUsers(): array
     {
-        if (is_null(dcCore::app()->blog)) {
+        if (!App::blog()->isDefined()) {
             return [];
         }
 
         $sql = new SelectStatement();
-        $rs  = $sql->from($sql->as(dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME, 'C'))
+        $rs  = $sql->from($sql->as(App::con()->prefix() . App::blog()::COMMENT_TABLE_NAME, 'C'))
             ->columns([
                 'comment_author',
                 'comment_email',
@@ -231,11 +233,11 @@ class Utils
             ->join(
                 (new JoinStatement())
                     ->left()
-                    ->from($sql->as(dcCore::app()->prefix . dcBlog::POST_TABLE_NAME, 'P'))
+                    ->from($sql->as(App::con()->prefix() . App::blog()::POST_TABLE_NAME, 'P'))
                     ->on('C.post_id = P.post_id')
                     ->statement()
             )
-            ->where('blog_id = ' . $sql->quote(dcCore::app()->blog->id))
+            ->where('blog_id = ' . $sql->quote(App::blog()->id()))
             ->and('comment_trackback = 0')
             ->and("comment_email != ''")
             ->group('comment_email, comment_author') // Added author to fix postgreSql