diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b2b999..dded805 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,40 +1,46 @@
-myUrlHandlers 2023.08.13
-===========================================================
-* Require Dotclear 2.27
-* Require PHP 7.4
-* Move third party repository
-* Use Dotclear style for CHANGELOG
-
-myUrlHandlers 2023.07.29
-===========================================================
-* require dotclear 2.27
-* require PHP 7.4+
-* update to dotclear 2.27-dev
-
-myUrlHandlers 2023.05.13
-===========================================================
-* require dotclear 2.26
-* cleanup for dc2.26 stable
-
-myUrlHandlers 2023.04.22
-===========================================================
-* require dotclear 2.26
-* add plugin Uninstaller features
-* fix nullsafe warnings
-
-myUrlHandlers 2023.03.27
-===========================================================
-* require dotclear 2.26
-* use dotclear Helper
-
-myUrlHandlers 2023.03.11
-===========================================================
-* Update to Dotclear 2.26
-* use abstract plugin id
-* use php namespace
-* use json instead of serialize
-* rename settings
-
-myUrlHandlers 2022.11.26
-===========================================================
+myUrlHandlers 2023.10.07
+===========================================================
+* Require Dotclear 2.28
+* Require PHP 8.1
+* Upgrade to Dotclear 2.28
+
+myUrlHandlers 2023.08.13
+===========================================================
+* Require Dotclear 2.27
+* Require PHP 7.4
+* Move third party repository
+* Use Dotclear style for CHANGELOG
+
+myUrlHandlers 2023.07.29
+===========================================================
+* require dotclear 2.27
+* require PHP 7.4+
+* update to dotclear 2.27-dev
+
+myUrlHandlers 2023.05.13
+===========================================================
+* require dotclear 2.26
+* cleanup for dc2.26 stable
+
+myUrlHandlers 2023.04.22
+===========================================================
+* require dotclear 2.26
+* add plugin Uninstaller features
+* fix nullsafe warnings
+
+myUrlHandlers 2023.03.27
+===========================================================
+* require dotclear 2.26
+* use dotclear Helper
+
+myUrlHandlers 2023.03.11
+===========================================================
+* Update to Dotclear 2.26
+* use abstract plugin id
+* use php namespace
+* use json instead of serialize
+* rename settings
+
+myUrlHandlers 2022.11.26
+===========================================================
 * update to Dotclear 2.24
\ No newline at end of file
diff --git a/README.md b/README.md
index efd4098..c6f7da1 100644
--- a/README.md
+++ b/README.md
@@ -1,26 +1,22 @@
 # README
 
 [![Release](https://img.shields.io/badge/release-2023.08.13-a2cbe9.svg)](https://git.dotclear.watch/JcDenis/myUrlHandlers/releases)
-[![Date](https://img.shields.io/badge/date-2023.08.13-c44d58.svg)](https://git.dotclear.watch/JcDenis/myUrlHandlers/releases)
+![Date](https://img.shields.io/badge/date-2023.08.13-c44d58.svg)
 [![Dotclear](https://img.shields.io/badge/dotclear-v2.27-137bbb.svg)](https://fr.dotclear.org/download)
 [![Dotaddict](https://img.shields.io/badge/dotaddict-official-9ac123.svg)](https://plugins.dotaddict.org/dc2/details/myUrlHandlers)
-[![License](https://img.shields.io/github/license/JcDenis/myUrlHandlers)](https://git.dotclear.watch/JcDenis/myUrlHandlers/blob/master/LICENSE)
+[![License](https://img.shields.io/badge/license-GPL--2.0-ececec.svg)](https://git.dotclear.watch/JcDenis/myUrlHandlers/src/branch/master/LICENSE)
 
-## WHAT IS MYURLHANLDERS ?
+## ABOUT
 
-_myUrlHandlers_ is a plugin for the open-source 
-web publishing software called Dotclear.
+_myUrlHandlers_ is a plugin for the open-source web publishing software called [Dotclear](https://www.dotclear.org).
 
-You can change public URL of each Dotclear parts, 
-like post, category, etc and some plugins having public parts.
+> You can change public URL of each Dotclear parts, like post, category, etc and some plugins having public parts.
 
 ## REQUIREMENTS
 
-_myUrlHandlers_ requires: 
-
 * contentadmin permissions for management
-* Dotclear 2.27
-* PHP 7.4+
+* Dotclear 2.28
+* PHP 8.1+
 
 ## USAGE
 
@@ -32,10 +28,11 @@ or you can add dashboard icon.
 
 ## 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/myUrlHandlers) or [GitHub Page](https://github.com/JcDenis/myUrlHandlers)
-* Packages & details: [Gitea Page](https://git.dotclear.watch/JcDenis/myUrlHandlers/releases) or [Dotaddict Page](https://plugins.dotaddict.org/dc2/details/myUrlHandlers)
-* Discuss and help : [Dotclear Forum](https://forum.dotclear.org/viewtopic.php?id=40893)
+* [License](https://git.dotclear.watch/JcDenis/myUrlHandlers/src/branch/master/LICENSE)
+* [Packages & details](https://git.dotclear.watch/JcDenis/myUrlHandlers/releases) (or on [Dotaddict](https://plugins.dotaddict.org/dc2/myUrlHandlers/alias))
+* [Sources & contributions](https://git.dotclear.watch/JcDenis/myUrlHandlers) (or on [GitHub](https://github.com/JcDenis/myUrlHandlers))
+* [Issues & security](https://git.dotclear.watch/JcDenis/myUrlHandlers/issues) (or on [GitHub](https://github.com/JcDenis/myUrlHandlers/issues))
+* [Discuss and help](https://forum.dotclear.org/viewtopic.php?id=40893)
 
 ## CONTRIBUTORS
 
diff --git a/_define.php b/_define.php
index 5447b65..62d7b97 100644
--- a/_define.php
+++ b/_define.php
@@ -10,9 +10,7 @@
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-if (!defined('DC_RC_PATH')) {
-    return null;
-}
+use Dotclear\App;
 
 $this->registerModule(
     'URL handlers',
@@ -20,9 +18,9 @@ $this->registerModule(
     'Alex Pirine and contributors',
     '2023.08.13',
     [
-        'requires'    => [['core', '2.27']],
-        'permissions' => dcCore::app()->auth->makePermissions([
-            dcCore::app()->auth::PERMISSION_CONTENT_ADMIN,
+        'requires'    => [['core', '2.28']],
+        'permissions' => App::auth()->makePermissions([
+            App::auth()::PERMISSION_CONTENT_ADMIN,
         ]),
         'priority'   => 150000,
         'type'       => 'plugin',
diff --git a/dcstore.xml b/dcstore.xml
index d00e0fc..9d05a4b 100644
--- a/dcstore.xml
+++ b/dcstore.xml
@@ -5,7 +5,7 @@
     <version>2023.08.13</version>
     <author>Alex Pirine and contributors</author>
     <desc>Change Dotclear URL handlers</desc>
-    <file>https://git.dotclear.watch/JcDenis/myUrlHandlers/releases/download/v2023.08.13/plugin-myUrlHandlers.zip</file>
+    <file>https://github.com/JcDenis/myUrlHandlers/releases/download/v2023.08.13/plugin-myUrlHandlers.zip</file>
     <da:dcmin>2.27</da:dcmin>
     <da:details>https://git.dotclear.watch/JcDenis/myUrlHandlers/src/branch/master/README.md</da:details>
     <da:support>https://git.dotclear.watch/JcDenis/myUrlHandlers/issues</da:support>
diff --git a/src/Backend.php b/src/Backend.php
index 9ec55be..41ee57b 100644
--- a/src/Backend.php
+++ b/src/Backend.php
@@ -14,7 +14,7 @@ declare(strict_types=1);
 
 namespace Dotclear\Plugin\myUrlHandlers;
 
-use dcCore;
+use Dotclear\App;
 use Dotclear\Core\Process;
 use Dotclear\Core\Backend\Favorites;
 
@@ -34,13 +34,13 @@ class Backend extends Process
         My::addBackendMenuItem();
 
         // register user backend dashboard icon
-        dcCore::app()->addBehavior('adminDashboardFavoritesV2', function (Favorites $favs): void {
+        App::behavior()->addBehavior('adminDashboardFavoritesV2', function (Favorites $favs): void {
             $favs->register(My::id(), [
                 'title'       => My::name(),
                 'url'         => My::manageUrl(),
                 'small-icon'  => My::icons(),
                 'large-icon'  => My::icons(),
-                'permissions' => dcCore::app()->auth->makePermissions([dcCore::app()->auth::PERMISSION_CONTENT_ADMIN]),
+                'permissions' => App::auth()->makePermissions([App::auth()::PERMISSION_CONTENT_ADMIN]),
             ]);
         });
 
diff --git a/src/Install.php b/src/Install.php
index 47bfe43..4213ad3 100644
--- a/src/Install.php
+++ b/src/Install.php
@@ -14,8 +14,7 @@ declare(strict_types=1);
 
 namespace Dotclear\Plugin\myUrlHandlers;
 
-use dcCore;
-use dcNamespace;
+use Dotclear\App;
 use Dotclear\Core\Process;
 
 class Install extends Process
@@ -46,24 +45,24 @@ class Install extends Process
 
     private static function growUp(): void
     {
-        $current = dcCore::app()->getVersion(My::id());
+        $current = App::version()->getVersion(My::id());
 
         // Update settings id, ns, value
         if ($current && version_compare($current, '2023.03.11', '<')) {
-            $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 = 'myurlhandlers' AND setting_id = 'url_handlers' "
             );
 
             while ($record->fetch()) {
                 $value = @unserialize($record->f('setting_value'));
-                $cur   = dcCore::app()->con->openCursor(dcCore::app()->prefix . dcNamespace::NS_TABLE_NAME);
+                $cur   = App::blogWorkspace()->openBlogWorkspaceCursor();
                 $cur->setField('setting_id', My::NS_SETTING_ID);
                 $cur->setField('setting_ns', My::id());
                 $cur->setField('setting_value', json_encode(is_array($value) ? $value : []));
                 $cur->update(
                     "WHERE setting_id = '" . $record->f('setting_id') . "' and setting_ns = '" . $record->f('setting_ns') . "' " .
-                    '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/Manage.php b/src/Manage.php
index c56a3d8..c52e9c8 100644
--- a/src/Manage.php
+++ b/src/Manage.php
@@ -14,7 +14,7 @@ declare(strict_types=1);
 
 namespace Dotclear\Plugin\myUrlHandlers;
 
-use dcCore;
+use Dotclear\App;
 use Dotclear\Core\Process;
 use Dotclear\Core\Backend\{
     Notices,
@@ -103,7 +103,7 @@ class Manage extends Process
                 My::redirect();
             }
         } catch (Exception $e) {
-            dcCore::app()->error->add($e->getMessage());
+            App::error()->add($e->getMessage());
         }
 
         return true;
@@ -122,8 +122,8 @@ class Manage extends Process
         echo
         Page::breadcrumb(
             [
-                Html::escapeHTML(dcCore::app()->blog->name) => '',
-                My::name()                                  => '',
+                Html::escapeHTML(App::blog()->name()) => '',
+                My::name()                            => '',
             ]
         ) .
         Notices::getNotices();
@@ -133,7 +133,7 @@ class Manage extends Process
             '<p class="message">' . __('No URL handler to configure.') . '</p>';
         } else {
             echo
-            '<form action="' . dcCore::app()->admin->getPageURL() . '" method="post">' .
+            '<form action="' . App::backend()->getPageURL() . '" method="post">' .
             '<div class="table-outer">' .
             '<table>' .
             '<caption>' . __('URL handlers list') . '</caption>' .
@@ -168,6 +168,11 @@ class Manage extends Process
         Page::closeModule();
     }
 
+    /**
+     * Get handlers.
+     *
+     * @return  array<string,string>    The handlers
+     */
     private static function getHandlers(): array
     {
         # Read default handlers
diff --git a/src/MyUrlHandlers.php b/src/MyUrlHandlers.php
index 31a2964..f785fcc 100644
--- a/src/MyUrlHandlers.php
+++ b/src/MyUrlHandlers.php
@@ -14,17 +14,30 @@ declare(strict_types=1);
 
 namespace Dotclear\Plugin\myUrlHandlers;
 
-use dcCore;
+use Dotclear\App;
+use Dotclear\Core\PostType;
 
 class MyUrlHandlers
 {
-    /** @var    array   $defaults   The default URLs handlers */
+    /**
+     * The default URLs handlers.
+     *
+     * @var     array<string,array<string,string>>  $defaults
+     */
     private static array $defaults = [];
 
-    /** @var    array   $url2post   The posts types URLs */
+    /**
+     * The posts types URLs.
+     *
+     * @var     array<string,string>    $url2post
+     */
     private static array $url2post = [];
 
-    /** @var    array   $post_adm_url   The posts types admin URLs */
+    /**
+     * The posts types admin URLs.
+     *
+     * @var     array<string,string>    $post_adm_url
+     */
     private static array $post_adm_url = [];
 
     /**
@@ -33,7 +46,7 @@ class MyUrlHandlers
     public static function init(): void
     {
         # Set defaults
-        foreach (dcCore::app()->url->getTypes() as $k => $v) {
+        foreach (App::url()->getTypes() as $k => $v) {
             if (empty($v['url'])) {
                 continue;
             }
@@ -47,9 +60,9 @@ class MyUrlHandlers
             }
         }
 
-        foreach (dcCore::app()->getPostTypes() as $k => $v) {
-            self::$url2post[$v['public_url']] = $k;
-            self::$post_adm_url[$k]           = $v['admin_url'];
+        foreach (App::postTypes()->dump() as $pt) {
+            self::$url2post[$pt->public_url] = $pt->type;
+            self::$post_adm_url[$pt->type]   = $pt->admin_url;
         }
 
         # Read user settings
@@ -70,7 +83,7 @@ class MyUrlHandlers
             return;
         }
 
-        dcCore::app()->url->register(
+        App::url()->register(
             $name,
             $url,
             sprintf(self::$defaults[$name]['representation'], $url),
@@ -80,14 +93,18 @@ class MyUrlHandlers
         $k = self::$url2post[self::$defaults[$name]['url'] . '/%s'] ?? '';
 
         if ($k) {
-            dcCore::app()->setPostType($k, self::$post_adm_url[$k], dcCore::app()->url->getBase($name) . '/%s');
+            App::postTypes()->set(new PostType(
+                $k,
+                self::$post_adm_url[$k],
+                App::url()->getBase($name) . '/%s'
+            ));
         }
     }
 
     /**
-     * Get default URLs handlers
+     * Get default URLs handlers.
      *
-     * @return  array   The default URLs handlers
+     * @return  array<string,string>    The default URLs handlers
      */
     public static function getDefaults(): array
     {
@@ -102,29 +119,23 @@ class MyUrlHandlers
     /**
      * Get custom blog URLs handlers.
      *
-     * @return  array   The blog URLs handlers
+     * @return  array<string,string>    The blog URLs handlers
      */
     public static function getBlogHandlers(): array
     {
-        if (is_null(dcCore::app()->blog)) {
-            return [];
-        }
         $handlers = json_decode((string) My::settings()->get(My::NS_SETTING_ID), true);
 
         return is_array($handlers) ? $handlers : [];
     }
 
     /**
-     * Save custom URLs handlers
+     * Save custom URLs handlers.
      *
-     * @param   array   $handlers   The custom URLs handlers
+     * @param   array<string,string>    $handlers   The custom URLs handlers
      */
     public static function saveBlogHandlers(array $handlers): void
     {
-        if (is_null(dcCore::app()->blog)) {
-            return;
-        }
         My::settings()->put(My::NS_SETTING_ID, json_encode($handlers));
-        dcCore::app()->blog->triggerBlog();
+        App::blog()->triggerBlog();
     }
 }
diff --git a/src/Uninstall.php b/src/Uninstall.php
index 71c2486..3c6901e 100644
--- a/src/Uninstall.php
+++ b/src/Uninstall.php
@@ -14,7 +14,6 @@ declare(strict_types=1);
 
 namespace Dotclear\Plugin\myUrlHandlers;
 
-use dcCore;
 use Dotclear\Core\Process;
 use Dotclear\Plugin\Uninstaller\Uninstaller;
 
@@ -27,7 +26,7 @@ class Uninstall extends Process
 
     public static function process(): bool
     {
-        if (!self::status() || !dcCore::app()->plugins->moduleExists('Uninstaller')) {
+        if (!self::status()) {
             return false;
         }