diff --git a/public/main/admin/update_schema.php b/public/main/admin/update_schema.php
index feabecb45a..30d4ddbd0c 100644
--- a/public/main/admin/update_schema.php
+++ b/public/main/admin/update_schema.php
@@ -8,10 +8,6 @@ require_once __DIR__.'/../inc/global.inc.php';
 // Access restrictions
 api_protect_admin_script(true);
 
-if ('false' === api_get_setting('platform.sync_db_with_schema')) {
-    api_not_allowed(true);
-}
-
 $em = Database::getManager();
 $connection = Database::getManager()->getConnection();
 $sm = $connection->createSchemaManager();
diff --git a/public/main/admin/user_add.php b/public/main/admin/user_add.php
index 6733f5eeda..54d359bb84 100644
--- a/public/main/admin/user_add.php
+++ b/public/main/admin/user_add.php
@@ -296,17 +296,14 @@ $returnParams = $extraField->addElements(
     true
 );
 
-$allowEmailTemplate = ('true' === api_get_setting('mail.mail_template_system'));
-if ($allowEmailTemplate) {
-    $form->addEmailTemplate(
-        [
-            'subject_registration_platform.tpl',
-            'content_registration_platform.tpl',
-            'new_user_first_email_confirmation.tpl',
-            'new_user_second_email_confirmation.tpl',
-        ]
-    );
-}
+$form->addEmailTemplate(
+    [
+        'subject_registration_platform.tpl',
+        'content_registration_platform.tpl',
+        'new_user_first_email_confirmation.tpl',
+        'new_user_second_email_confirmation.tpl',
+    ]
+);
 
 $jquery_ready_content = $returnParams['jquery_ready_content'];
 
diff --git a/public/main/admin/user_edit.php b/public/main/admin/user_edit.php
index 34eb735251..a76d666a77 100644
--- a/public/main/admin/user_edit.php
+++ b/public/main/admin/user_edit.php
@@ -346,10 +346,7 @@ $returnParams = $extraField->addElements(
 );
 $jqueryReadyContent = $returnParams['jquery_ready_content'];
 
-$allowEmailTemplate = ('true' === api_get_setting('mail.mail_template_system'));
-if ($allowEmailTemplate) {
-    $form->addEmailTemplate(['user_edit_content.tpl']);
-}
+$form->addEmailTemplate(['user_edit_content.tpl']);
 
 // the $jqueryReadyContent variable collects all functions that will be load in the
 $htmlHeadXtra[] = '<script>
diff --git a/public/main/announcements/announcements.php b/public/main/announcements/announcements.php
index 94b6f7c20d..92a864dcad 100644
--- a/public/main/announcements/announcements.php
+++ b/public/main/announcements/announcements.php
@@ -606,7 +606,7 @@ switch ($action) {
             );
         }
 
-        $config = api_get_configuration_value('announcement.hide_send_to_hrm_users');
+        $config = api_get_setting('announcement.announcements_hide_send_to_hrm_users');
 
         if (false === $config) {
             $form->addCheckBox(
diff --git a/public/main/auth/profile.php b/public/main/auth/profile.php
index 9da38390e7..acd82bb7c3 100644
--- a/public/main/auth/profile.php
+++ b/public/main/auth/profile.php
@@ -81,7 +81,7 @@ if ('true' === api_get_setting('allow_message_tool')) {
 EOF;
 }
 
-$tool_name = 'true' === api_get_setting('profile.is_editable') ? get_lang('Edit Profile') : get_lang('View my e-portfolio');
+$tool_name = get_lang('View my e-portfolio');
 $table_user = Database::get_main_table(TABLE_MAIN_USER);
 
 /*
@@ -190,7 +190,7 @@ $form->applyFilter('phone', 'trim');
 $form->applyFilter('phone', 'html_filter');
 
 //  PICTURE
-if ('true' === api_get_setting('profile.is_editable') && in_array('picture', $profileList)) {
+if (in_array('picture', $profileList)) {
     $form->addFile(
         'picture',
         [
@@ -226,7 +226,7 @@ if (!in_array('language', $profileList)) {
 }
 
 // THEME
-if ('true' === api_get_setting('profile.is_editable') && 'true' === api_get_setting('user_selected_theme')) {
+if ('true' === api_get_setting('user_selected_theme')) {
     $form->addSelectTheme('theme', get_lang('Graphical theme'));
     if (!in_array('theme', $profileList)) {
         $form->freeze('theme');
@@ -300,7 +300,6 @@ if ('true' === api_get_setting('extended_profile')) {
 
 //    PASSWORD, if auth_source is platform
 if (PLATFORM_AUTH_SOURCE == $user_data['auth_source'] &&
-    'true' === api_get_setting('profile.is_editable') &&
     in_array('password', $profileList)
 ) {
     $form->addElement('password', 'password0', [get_lang('Pass'), get_lang('Enter2passToChange')], ['size' => 40]);
@@ -348,11 +347,7 @@ if (in_array('apikeys', $profileList)) {
     );
 }
 //    SUBMIT
-if ('true' === api_get_setting('profile.is_editable')) {
-    $form->addButtonUpdate(get_lang('Save settings'), 'apply_change');
-} else {
-    $form->freeze();
-}
+$form->addButtonUpdate(get_lang('Save settings'), 'apply_change');
 
 // Student cannot modified their user conditions
 $extraConditions = api_get_setting('profile.show_conditions_to_user', true);
diff --git a/public/main/cron/hosting_total_size_limit.php b/public/main/cron/hosting_total_size_limit.php
index 46e286c9e5..4e6898e5fb 100644
--- a/public/main/cron/hosting_total_size_limit.php
+++ b/public/main/cron/hosting_total_size_limit.php
@@ -12,11 +12,6 @@ require_once __DIR__.'/../inc/global.inc.php';
  */
 function isTotalPortalSizeBiggerThanLimit($debug = true)
 {
-    $sizeLimit = (int) api_get_setting('mail.hosting_total_size_limit');
-    if (empty($sizeLimit)) {
-        return true;
-    }
-
     $updateFile = true;
     $file = api_get_path(SYS_COURSE_PATH).'hosting_total_size.php';
 
diff --git a/public/main/cron/import_csv.php b/public/main/cron/import_csv.php
index 43d5581228..24d662570a 100644
--- a/public/main/cron/import_csv.php
+++ b/public/main/cron/import_csv.php
@@ -3201,7 +3201,7 @@ class ImportCsv
 }
 
 $logger = new Logger('cron');
-$emails = api_get_setting('mail.cron_notification_mails', true);
+$emails = api_get_setting('mail.cron_notification_help_desk', true);
 
 $minLevel = Logger::DEBUG;
 
diff --git a/public/main/cron/update_session_status.php b/public/main/cron/update_session_status.php
index 9ccc6bac7d..a46c540a30 100644
--- a/public/main/cron/update_session_status.php
+++ b/public/main/cron/update_session_status.php
@@ -6,12 +6,6 @@ require_once __DIR__.'/../inc/global.inc.php';
 
 $test = true;
 
-$sessionStatusAllowed = api_get_setting('session.allow_session_status');
-if (!$sessionStatusAllowed) {
-    echo '"allow_session_status" setting is not activated.';
-    exit;
-}
-
 $em = Database::getManager();
 $table = Database::get_main_table(TABLE_MAIN_SESSION);
 $sql = "SELECT * FROM $table ";
diff --git a/public/main/gradebook/gradebook_display_summary.php b/public/main/gradebook/gradebook_display_summary.php
index 0ef9f2501b..6c13101621 100644
--- a/public/main/gradebook/gradebook_display_summary.php
+++ b/public/main/gradebook/gradebook_display_summary.php
@@ -29,10 +29,6 @@ $userList = CourseManager::getUserListFromCourseId(
 $loadStats = [];
 if ('true' === api_get_setting('gradebook_detailed_admin_view')) {
     $loadStats = [1, 2, 3];
-} else {
-    if ('true' === api_get_setting('gradebook.gradebook_enable_best_score')) {
-        $loadStats = [2];
-    }
 }
 
 /*Session::write('use_gradebook_cache', false);
diff --git a/public/main/gradebook/index.php b/public/main/gradebook/index.php
index 9a4b77a575..90c5fc04a1 100644
--- a/public/main/gradebook/index.php
+++ b/public/main/gradebook/index.php
@@ -1004,10 +1004,6 @@ if (isset($first_time) && 1 == $first_time && api_is_allowed_to_edit(null, true)
                 if (!$isAllow) {
                     if ('true' === api_get_setting('gradebook_detailed_admin_view')) {
                         $loadStats = [1, 2, 3];
-                    } else {
-                        if ('true' === api_get_setting('gradebook.gradebook_enable_best_score')) {
-                            $loadStats = [2];
-                        }
                     }
                 }
 
diff --git a/public/main/gradebook/lib/GradebookUtils.php b/public/main/gradebook/lib/GradebookUtils.php
index 75989bebba..cb2458e4a5 100644
--- a/public/main/gradebook/lib/GradebookUtils.php
+++ b/public/main/gradebook/lib/GradebookUtils.php
@@ -1510,10 +1510,6 @@ class GradebookUtils
         $loadStats = [];
         if ('true' === api_get_setting('gradebook_detailed_admin_view')) {
             $loadStats = [1, 2, 3];
-        } else {
-            if ('true' === api_get_setting('gradebook.gradebook_enable_best_score')) {
-                $loadStats = [2];
-            }
         }
 
         $gradebooktable = new GradebookTable(
diff --git a/public/main/gradebook/lib/flatview_data_generator.class.php b/public/main/gradebook/lib/flatview_data_generator.class.php
index f0f31215c4..7fade27baa 100644
--- a/public/main/gradebook/lib/flatview_data_generator.class.php
+++ b/public/main/gradebook/lib/flatview_data_generator.class.php
@@ -488,7 +488,7 @@ class FlatViewDataGenerator
                     $item_value = $percentage * $item_value;
                     $item_total += $sub_cat->get_weight();
 
-                    if ('false' === api_get_setting('gradebook_show_percentage_in_reports')) {
+                    //if ('false' === api_get_setting('gradebook_show_percentage_in_reports')) {
                         $defaultShowPercentageValue = SCORE_SIMPLE;
                         if (!empty($style)) {
                             $defaultShowPercentageValue = $style;
@@ -504,7 +504,7 @@ class FlatViewDataGenerator
                             null
                         );
                         $temp_score = Display::tip($real_score, $temp_score);
-                    } else {
+                    /*} else {
                         $real_score = $scoreDisplay->display_score(
                             $real_score,
                             SCORE_DIV_PERCENT,
@@ -516,7 +516,7 @@ class FlatViewDataGenerator
                             null
                         );
                         $temp_score = Display::tip($temp_score, $real_score);
-                    }
+                    }*/
 
                     if (!isset($this->params['only_total_category']) ||
                         (isset($this->params['only_total_category']) &&
@@ -650,7 +650,7 @@ class FlatViewDataGenerator
         if (!empty($style)) {
             $defaultStyle = (int) $style;
         }
-        $showPercentage = api_get_setting('gradebook_show_percentage_in_reports');
+        //$showPercentage = api_get_setting('gradebook_show_percentage_in_reports');
         for ($count = 0; $count < $items_count && ($items_start + $count < count($this->evals_links)); $count++) {
             /** @var AbstractLink $item */
             $item = $this->evals_links[$count + $items_start];
@@ -703,7 +703,7 @@ class FlatViewDataGenerator
                 SCORE_ONLY_SCORE
             );
 
-            if ('false' === $showPercentage) {
+            //if ('false' === $showPercentage) {
                 $defaultShowPercentageValue = SCORE_SIMPLE;
                 if (!empty($style)) {
                     $defaultShowPercentageValue = $style;
@@ -717,13 +717,13 @@ class FlatViewDataGenerator
                     SCORE_DIV_SIMPLE_WITH_CUSTOM
                 );
                 $temp_score = Display::tip($real_score, $temp_score);
-            } else {
+            /*} else {
                 $temp_score = $scoreDisplay->display_score(
                     $real_score,
                     $defaultStyle
                 );
                 $temp_score = Display::tip($temp_score, $complete_score);
-            }
+            }*/
 
             if (!empty($model)) {
                 $scoreToShow = '';
diff --git a/public/main/inc/ajax/model.ajax.php b/public/main/inc/ajax/model.ajax.php
index 00fe0c0cfd..065a3872c4 100644
--- a/public/main/inc/ajax/model.ajax.php
+++ b/public/main/inc/ajax/model.ajax.php
@@ -822,14 +822,12 @@ switch ($action) {
             }
         }
 
-        if ('true' === api_get_setting('session.allow_session_status')) {
-            if (isset($filters->filter_status)) {
-                $sStatus = (int) $filters->filter_status;
-                $whereCondition .= ' AND s.status = '.$sStatus;
-            } else {
-                if ($listType === 'custom') {
-                    $whereCondition .= ' AND (s.status IN ("'.SessionManager::STATUS_PLANNED.'", "'.SessionManager::STATUS_PROGRESS.'") ) ';
-                }
+        if (isset($filters->filter_status)) {
+            $sStatus = (int) $filters->filter_status;
+            $whereCondition .= ' AND s.status = '.$sStatus;
+        } else {
+            if ($listType === 'custom') {
+                $whereCondition .= ' AND (s.status IN ("'.SessionManager::STATUS_PLANNED.'", "'.SessionManager::STATUS_PROGRESS.'") ) ';
             }
         }
 
diff --git a/public/main/inc/ajax/statistics.ajax.php b/public/main/inc/ajax/statistics.ajax.php
index 981e3cd07b..062457e0e7 100644
--- a/public/main/inc/ajax/statistics.ajax.php
+++ b/public/main/inc/ajax/statistics.ajax.php
@@ -624,11 +624,6 @@ switch ($action) {
                 $table = $table['table'];
                 break;
             case 'status':
-                $sessionStatusAllowed = ('true' === api_get_setting('session.allow_session_status'));
-                if (!$sessionStatusAllowed) {
-                    exit;
-                }
-
                 $sql = "SELECT count(id) count, status FROM $table
                         WHERE
                             (
diff --git a/public/main/inc/lib/document.lib.php b/public/main/inc/lib/document.lib.php
index 35f75f5c8a..97a4e4c52d 100644
--- a/public/main/inc/lib/document.lib.php
+++ b/public/main/inc/lib/document.lib.php
@@ -413,7 +413,7 @@ class DocumentManager
             return true;
         } else {
             // no forced download, just let the browser decide what to do according to the mimetype
-            $lpFixedEncoding = 'true' === api_get_setting('lp.fixed_encoding');
+            $lpFixedEncoding = 'true' === api_get_setting('lp.lp_fixed_encoding');
 
             // Commented to let courses content to be cached in order to improve performance:
             //header('Expires: Wed, 01 Jan 1990 00:00:00 GMT');
diff --git a/public/main/inc/lib/extra_field.lib.php b/public/main/inc/lib/extra_field.lib.php
index 58541dd082..179c9a8be0 100644
--- a/public/main/inc/lib/extra_field.lib.php
+++ b/public/main/inc/lib/extra_field.lib.php
@@ -190,9 +190,7 @@ class ExtraField extends Model
         if ('true' === api_get_setting('announcement.allow_scheduled_announcements')) {
             $result[] = 'scheduled_announcement';
         }
-        if ('true' === api_get_setting('platform.allow_portfolio_tool')) {
-            $result[] = 'portfolio';
-        }
+        $result[] = 'portfolio';
         sort($result);
 
         return $result;
diff --git a/public/main/inc/lib/message.lib.php b/public/main/inc/lib/message.lib.php
index 0c0398ae75..a83846b120 100644
--- a/public/main/inc/lib/message.lib.php
+++ b/public/main/inc/lib/message.lib.php
@@ -1434,15 +1434,13 @@ class MessageManager
         );
         $layoutContent = '';
         $emailbody = '';
-        if ('true' === api_get_setting('mail.mail_template_system')) {
-            $mailTemplateManager = new MailTemplateManager();
-            $templateText = $mailTemplateManager->getTemplateByType('new_user_mail_to_admin_approval.tpl');
-            if (empty($templateText)) {
-            } else {
-                // custom procedure to load a template as a string (doesn't use cache so may slow down)
-                $template = $tplMailBody->twig->createTemplate($templateText);
-                $emailbody = $template->render($tplMailBody->params);
-            }
+        $mailTemplateManager = new MailTemplateManager();
+        $templateText = $mailTemplateManager->getTemplateByType('new_user_mail_to_admin_approval.tpl');
+        if (empty($templateText)) {
+        } else {
+            // custom procedure to load a template as a string (doesn't use cache so may slow down)
+            $template = $tplMailBody->twig->createTemplate($templateText);
+            $emailbody = $template->render($tplMailBody->params);
         }
         if (empty($emailbody)) {
             $layoutContent = $tplMailBody->get_template('mail/new_user_mail_to_admin_approval.tpl');
diff --git a/public/main/inc/lib/sessionmanager.lib.php b/public/main/inc/lib/sessionmanager.lib.php
index ddb2ce82a9..10e6a243a1 100644
--- a/public/main/inc/lib/sessionmanager.lib.php
+++ b/public/main/inc/lib/sessionmanager.lib.php
@@ -258,15 +258,8 @@ class SessionManager
                 $session->setDisplayEndDate($displayEndDate);
                 $session->setCoachAccessStartDate($coachStartDate);
                 $session->setCoachAccessEndDate($coachEndDate);
+                $session->setStatus($status);
 
-                if (!empty($sessionCategoryId)) {
-                    //$session->setCategory($category);
-                    //$values['session_category_id'] = $sessionCategoryId;
-                }
-
-                if ('true' === api_get_setting('session.allow_session_status')) {
-                    $session->setStatus($status);
-                }
 
                 $em = Database::getManager();
                 $em->persist($session);
@@ -528,10 +521,7 @@ class SessionManager
             if (!empty($extraFieldsToLoad)) {
                 $select = "SELECT DISTINCT s.* ";
             }
-
-            if ('true' === api_get_setting('session.allow_session_status')) {
-                $select .= ', status';
-            }
+            $select .= ', status';
 
             if (isset($options['order'])) {
                 $isMakingOrder = 0 === strpos($options['order'], 'category_name');
@@ -1931,10 +1921,7 @@ class SessionManager
                 } else {
                     $sessionEntity->setCategory(null);
                 }
-
-                if ('true' === api_get_setting('session.allow_session_status')) {
-                    $sessionEntity->setStatus($status);
-                }
+                $sessionEntity->setStatus($status);
 
                 $em->flush();
 
@@ -8048,17 +8035,15 @@ class SessionManager
             ]
         );
 
-        if ('true' === api_get_setting('session.allow_session_status')) {
-            $statusList = self::getStatusList();
-            $form->addSelect(
-                'status',
-                get_lang('SessionStatus'),
-                $statusList,
-                [
-                    'id' => 'status',
-                ]
-            );
-        }
+        $statusList = self::getStatusList();
+        $form->addSelect(
+            'status',
+            get_lang('SessionStatus'),
+            $statusList,
+            [
+                'id' => 'status',
+            ]
+        );
 
         $form->addHtmlEditor(
             'description',
@@ -8542,27 +8527,26 @@ class SessionManager
                     ];
                 }
 
-                if ('true' === api_get_setting('session.allow_session_status')) {
-                    $columns[] = get_lang('SessionStatus');
-                    $list = self::getStatusList();
-                    $listToString = '';
-                    foreach ($list as $statusId => $status) {
-                        $listToString .= $statusId.':'.$status.';';
-                    }
-
-                    $columnModel[] = [
-                        'name' => 'status',
-                        'index' => 'status',
-                        'align' => 'left',
-                        'search' => 'true',
-                        'stype' => 'select',
-                        // for the bottom bar
-                        'searchoptions' => [
-                            'defaultValue' => '1',
-                            'value' => $listToString,
-                        ],
-                    ];
+                $columns[] = get_lang('SessionStatus');
+                $list = self::getStatusList();
+                $listToString = '';
+                foreach ($list as $statusId => $status) {
+                    $listToString .= $statusId.':'.$status.';';
                 }
+
+                $columnModel[] = [
+                    'name' => 'status',
+                    'index' => 'status',
+                    'align' => 'left',
+                    'search' => 'true',
+                    'stype' => 'select',
+                    // for the bottom bar
+                    'searchoptions' => [
+                        'defaultValue' => '1',
+                        'value' => $listToString,
+                    ],
+                ];
+
                 break;
 
             case 'simple':
@@ -8643,22 +8627,21 @@ class SessionManager
                     ];
                 }
 
-                if ('true' === api_get_setting('session.allow_session_status')) {
-                    $columns[] = get_lang('SessionStatus');
-                    $list = self::getStatusList();
-                    $listToString = '';
-                    foreach ($list as $statusId => $status) {
-                        $listToString .= $statusId.':'.$status.';';
-                    }
-
-                    $columnModel[] = ['name' => 'status', 'index' => 'status', 'align' => 'left', 'search' => 'true', 'stype' => 'select',
-                        // for the bottom bar
-                        'searchoptions' => [
-                            'defaultValue' => '1',
-                            'value' => $listToString,
-                        ],
-                    ];
+                $columns[] = get_lang('SessionStatus');
+                $list = self::getStatusList();
+                $listToString = '';
+                foreach ($list as $statusId => $status) {
+                    $listToString .= $statusId.':'.$status.';';
                 }
+
+                $columnModel[] = ['name' => 'status', 'index' => 'status', 'align' => 'left', 'search' => 'true', 'stype' => 'select',
+                    // for the bottom bar
+                    'searchoptions' => [
+                        'defaultValue' => '1',
+                        'value' => $listToString,
+                    ],
+                ];
+
                 break;
             case 'complete':
                 $columns = [
@@ -8812,28 +8795,26 @@ class SessionManager
                     ];
                 }
 
-                if ('true' === api_get_setting('session.allow_session_status')) {
-                    $columns[] = get_lang('SessionStatus');
-                    $list = self::getStatusList();
-                    $listToString = '';
-                    foreach ($list as $statusId => $status) {
-                        $listToString .= $statusId.':'.$status.';';
-                    }
-
-                    $columnModel[] = [
-                        'name' => 'status',
-                        'index' => 'status',
-                        'align' => 'left',
-                        'search' => 'true',
-                        'stype' => 'select',
-                        // for the bottom bar
-                        'searchoptions' => [
-                            'defaultValue' => '1',
-                            'value' => $listToString,
-                        ],
-                    ];
+                $columns[] = get_lang('SessionStatus');
+                $list = self::getStatusList();
+                $listToString = '';
+                foreach ($list as $statusId => $status) {
+                    $listToString .= $statusId.':'.$status.';';
                 }
 
+                $columnModel[] = [
+                    'name' => 'status',
+                    'index' => 'status',
+                    'align' => 'left',
+                    'search' => 'true',
+                    'stype' => 'select',
+                    // for the bottom bar
+                    'searchoptions' => [
+                        'defaultValue' => '1',
+                        'value' => $listToString,
+                    ],
+                ];
+
                 break;
         }
 
diff --git a/public/main/inc/lib/template.lib.php b/public/main/inc/lib/template.lib.php
index e78bb33252..50ac04c80d 100644
--- a/public/main/inc/lib/template.lib.php
+++ b/public/main/inc/lib/template.lib.php
@@ -823,14 +823,9 @@ class Template
      *
      * @return string
      */
-    public static function getThemeFallback()
+    public static function getThemeFallback(): string
     {
-        $theme = api_get_setting('platform.theme_fallback');
-        if (empty($theme)) {
-            $theme = 'chamilo';
-        }
-
-        return $theme;
+        return 'chamilo';
     }
 
     /**
diff --git a/public/main/inc/lib/tracking.lib.php b/public/main/inc/lib/tracking.lib.php
index 4d59fb0bcf..24910f316f 100644
--- a/public/main/inc/lib/tracking.lib.php
+++ b/public/main/inc/lib/tracking.lib.php
@@ -7855,11 +7855,11 @@ class Tracking
             $columnHeaders['student_follow_page_add_LP_subscription_info'] = get_lang('Unlock');
         }
 
-        if ('true' === api_get_setting('lp.student_follow_page_add_LP_acquisition_info')) {
-            $columnHeaders['student_follow_page_add_LP_acquisition_info'] = get_lang('Acquisition');
+        if ('true' === api_get_setting('lp.student_follow_page_add_lp_acquisition_info')) {
+            $columnHeaders['student_follow_page_add_lp_acquisition_info'] = get_lang('Acquisition');
         }
 
-        $addLpInvisibleCheckbox = api_get_configuration_value('student_follow_page_add_LP_invisible_checkbox');
+        $addLpInvisibleCheckbox = api_get_setting('lp.student_follow_page_add_lp_invisible_checkbox');
 
         $columnHeadersKeys = array_keys($columnHeaders);
 
@@ -8004,7 +8004,7 @@ class Tracking
                 );
             }
 
-            if (in_array('student_follow_page_add_LP_acquisition_info', $columnHeadersKeys)) {
+            if (in_array('student_follow_page_add_lp_acquisition_info', $columnHeadersKeys)) {
                 $learningpathData[] = StudentFollowPage::getLpAcquisition(
                     $learnpath,
                     $userId,
diff --git a/public/main/lp/learnpath.class.php b/public/main/lp/learnpath.class.php
index 12c5e0fb11..62d26e24d3 100644
--- a/public/main/lp/learnpath.class.php
+++ b/public/main/lp/learnpath.class.php
@@ -6383,7 +6383,7 @@ class learnpath
         ];
         $form->addGroup($group, null, get_lang('If file exists:'));
 
-        $fileExistsOption = api_get_setting('document_if_file_exists_option');
+        $fileExistsOption = api_get_setting('document.document_if_file_exists_option');
         $defaultFileExistsOption = 'rename';
         if (!empty($fileExistsOption)) {
             $defaultFileExistsOption = $fileExistsOption;
diff --git a/public/main/portfolio/index.php b/public/main/portfolio/index.php
index d29e380323..49d81bf71f 100644
--- a/public/main/portfolio/index.php
+++ b/public/main/portfolio/index.php
@@ -15,10 +15,6 @@ require_once __DIR__.'/../inc/global.inc.php';
 
 api_block_anonymous_users();
 
-if ('true' !== api_get_setting('platform.allow_portfolio_tool')) {
-    api_not_allowed(true);
-}
-
 $em = Database::getManager();
 
 $currentUserId = api_get_user_id();
diff --git a/public/main/search/load_search.php b/public/main/search/load_search.php
index b20117aa67..acc763afe3 100644
--- a/public/main/search/load_search.php
+++ b/public/main/search/load_search.php
@@ -511,19 +511,17 @@ $userForm->addEndPanel();
 $form->addButtonSave(get_lang('Save Diagnostic Changes'), 'save');
 
 // Get list of session status
-if (api_get_configuration_value('allow_session_status')) {
-    $statusList = SessionManager::getStatusList();
-    $statusSelectList[0] = ' -- '.get_lang('All').' --';
-    foreach ($statusList as $nro => $name) {
-        $statusSelectList[$nro] = $name;
-    }
-    $form->addSelect(
-        'filter_status',
-        get_lang('SessionStatus'),
-        $statusSelectList,
-        ['id' => 'filter_status']
-    );
+$statusList = SessionManager::getStatusList();
+$statusSelectList[0] = ' -- '.get_lang('All').' --';
+foreach ($statusList as $nro => $name) {
+    $statusSelectList[$nro] = $name;
 }
+$form->addSelect(
+    'filter_status',
+    get_lang('SessionStatus'),
+    $statusSelectList,
+    ['id' => 'filter_status']
+);
 
 $form->addButtonSearch(get_lang('Search Sessions'), 'search');
 
diff --git a/public/main/survey/edit_meeting.php b/public/main/survey/edit_meeting.php
index bf0af3bb15..e36f2c441b 100644
--- a/public/main/survey/edit_meeting.php
+++ b/public/main/survey/edit_meeting.php
@@ -56,19 +56,10 @@ $form->addHidden('visible_results', '0');
 $form->addHidden('survey_type', 3);
 $text = $form->addText('survey_title', get_lang('Title'));
 
-$allowSurveyAvailabilityDatetime = ('true' === api_get_setting('survey.allow_survey_availability_datetime'));
-
-if ($allowSurveyAvailabilityDatetime) {
-    $form->addDateTimePicker('start_date', get_lang('Start Date'));
-    $form->addDateTimePicker('end_date', get_lang('End Date'));
-    $form->addRule('start_date', get_lang('Invalid date'), 'datetime');
-    $form->addRule('end_date', get_lang('Invalid date'), 'datetime');
-} else {
-    $form->addDatePicker('start_date', get_lang('Start Date'));
-    $form->addDatePicker('end_date', get_lang('End Date'));
-    $form->addRule('start_date', get_lang('Invalid date'), 'date');
-    $form->addRule('end_date', get_lang('Invalid date'), 'date');
-}
+$form->addDateTimePicker('start_date', get_lang('Start Date'));
+$form->addDateTimePicker('end_date', get_lang('End Date'));
+$form->addRule('start_date', get_lang('Invalid date'), 'datetime');
+$form->addRule('end_date', get_lang('Invalid date'), 'datetime');
 
 $form->addRule(
     ['start_date', 'end_date'],
diff --git a/public/main/survey/fillsurvey.php b/public/main/survey/fillsurvey.php
index 09f687a626..049a42d6a1 100644
--- a/public/main/survey/fillsurvey.php
+++ b/public/main/survey/fillsurvey.php
@@ -38,7 +38,7 @@ $table_survey_question_option = Database::get_course_table(TABLE_SURVEY_QUESTION
 $table_survey_invitation = Database::get_course_table(TABLE_SURVEY_INVITATION);
 $table_user = Database::get_main_table(TABLE_MAIN_USER);
 
-$allowRequiredSurveyQuestions = ('true' === api_get_setting('survey.allow_required_survey_questions'));
+$allowRequiredSurveyQuestions = true;
 
 // Check if user is anonymous or not
 $isAnonymous = false;
@@ -674,9 +674,7 @@ if ((isset($_GET['show']) && '' != $_GET['show']) ||
     $paged_questions = [];
     // If non-conditional survey
     $select = '';
-    if ('true' === api_get_setting('survey.survey_question_dependency')) {
-        $select = ' survey_question.parent_id, survey_question.parent_option_id, ';
-    }
+    $select = ' survey_question.parent_id, survey_question.parent_option_id, ';
 
     // If non-conditional survey
     if (0 === $survey->getSurveyType()) {
diff --git a/public/main/survey/preview.php b/public/main/survey/preview.php
index f6b142a832..adb6c0711f 100644
--- a/public/main/survey/preview.php
+++ b/public/main/survey/preview.php
@@ -36,7 +36,7 @@ $table_survey_question_option = Database::get_course_table(TABLE_SURVEY_QUESTION
 
 $course_id = api_get_course_int_id();
 $courseInfo = api_get_course_info();
-$allowRequiredSurveyQuestions = ('true' === api_get_setting('survey.allow_required_survey_questions'));
+$allowRequiredSurveyQuestions = true;
 
 // Breadcrumbs
 $interbreadcrumb[] = [
@@ -116,9 +116,7 @@ if (isset($_GET['show'])) {
 
     if (array_key_exists($_GET['show'], $paged_questions)) {
         $select = '';
-        if ('true' === api_get_setting('survey.survey_question_dependency')) {
-            $select = ' survey_question.parent_id, survey_question.parent_option_id, ';
-        }
+        $select = ' survey_question.parent_id, survey_question.parent_option_id, ';
         $sql = "SELECT
                     survey_question.iid question_id,
                     survey_question.survey_id,
diff --git a/public/main/survey/survey.lib.php b/public/main/survey/survey.lib.php
index 5f2126365b..d5040dffc1 100644
--- a/public/main/survey/survey.lib.php
+++ b/public/main/survey/survey.lib.php
@@ -688,10 +688,8 @@ class SurveyManager
                 'survey_group_sec2' => $row['survey_group_sec2'],
             ];
 
-            if ('true' === api_get_setting('survey.allow_required_survey_questions')) {
-                if (isset($row['is_required'])) {
-                    $params['is_required'] = $row['is_required'];
-                }
+            if (isset($row['is_required'])) {
+                $params['is_required'] = $row['is_required'];
             }
 
             $insertId = Database::insert($table_survey_question, $params);
@@ -896,9 +894,7 @@ class SurveyManager
         $return['horizontalvertical'] = $row['display'];
         $return['shared_question_id'] = $row['shared_question_id'];
         $return['maximum_score'] = $row['max_value'];
-        $return['is_required'] = ('true' === api_get_setting('survey.allow_required_survey_questions'))
-            ? $row['is_required']
-            : false;
+        $return['is_required'] = $row['is_required'];
 
         if (0 != $row['survey_group_pri']) {
             $return['assigned'] = $row['survey_group_pri'];
@@ -1057,21 +1053,17 @@ class SurveyManager
                         ->setSharedQuestionId((int) $form_content['shared_question_id'])
                     ;
 
-                    if ('true' === api_get_setting('survey.allow_required_survey_questions')) {
-                        $question->setIsMandatory(isset($form_content['is_required']));
-                    }
-
-                    if ('true' === api_get_setting('survey.survey_question_dependency')) {
-                        $params['parent_id'] = 0;
-                        $params['parent_option_id'] = 0;
-                        if (isset($form_content['parent_id']) &&
-                            isset($form_content['parent_option_id']) &&
-                            !empty($form_content['parent_id']) &&
-                            !empty($form_content['parent_option_id'])
-                        ) {
-                            $params['parent_id'] = $form_content['parent_id'];
-                            $params['parent_option_id'] = $form_content['parent_option_id'];
-                        }
+                    $question->setIsMandatory(isset($form_content['is_required']));
+
+                    $params['parent_id'] = 0;
+                    $params['parent_option_id'] = 0;
+                    if (isset($form_content['parent_id']) &&
+                        isset($form_content['parent_option_id']) &&
+                        !empty($form_content['parent_id']) &&
+                        !empty($form_content['parent_option_id'])
+                    ) {
+                        $params['parent_id'] = $form_content['parent_id'];
+                        $params['parent_option_id'] = $form_content['parent_option_id'];
                     }
 
                     $em->persist($question);
@@ -1113,21 +1105,16 @@ class SurveyManager
                         ->setMaxValue($maxScore)
                     ;
 
-                    if ('true' === api_get_setting('survey.allow_required_survey_questions')) {
-                        $question->isMandatory(isset($form_content['is_required']));
-                    }
-
-                    if ('true' === api_get_setting('survey.survey_question_dependency')) {
-                        $params['parent_id'] = 0;
-                        $params['parent_option_id'] = 0;
-                        if (isset($form_content['parent_id']) &&
-                            isset($form_content['parent_option_id']) &&
-                            !empty($form_content['parent_id']) &&
-                            !empty($form_content['parent_option_id'])
-                        ) {
-                            $question->setParent($repo->find($form_content['parent_id']));
-                            $question->setParentOption($repoOption->find($form_content['parent_option_id']));
-                        }
+                    $question->isMandatory(isset($form_content['is_required']));
+                    $params['parent_id'] = 0;
+                    $params['parent_option_id'] = 0;
+                    if (isset($form_content['parent_id']) &&
+                        isset($form_content['parent_option_id']) &&
+                        !empty($form_content['parent_id']) &&
+                        !empty($form_content['parent_option_id'])
+                    ) {
+                        $question->setParent($repo->find($form_content['parent_id']));
+                        $question->setParentOption($repoOption->find($form_content['parent_option_id']));
                     }
 
                     $em->persist($question);
@@ -1763,10 +1750,8 @@ class SurveyManager
                     'survey_group_sec2' => $row['survey_group_sec2'],
                 ];
 
-                if ('true' === api_get_setting('survey.allow_required_survey_questions')) {
-                    if (isset($row['is_required'])) {
-                        $params['is_required'] = $row['is_required'];
-                    }
+                if (isset($row['is_required'])) {
+                    $params['is_required'] = $row['is_required'];
                 }
 
                 $insertId = Database::insert($surveyQuestionTable, $params);
@@ -1845,10 +1830,8 @@ class SurveyManager
             'survey_group_sec1' => $row['survey_group_sec1'],
             'survey_group_sec2' => $row['survey_group_sec2'],
         ];
-        if ('true' === api_get_setting('survey.allow_required_survey_questions')) {
-            if (isset($row['is_required'])) {
-                $params['is_required'] = $row['is_required'];
-            }
+        if (isset($row['is_required'])) {
+            $params['is_required'] = $row['is_required'];
         }
         // Get question position
         $sqlSort = "SELECT max(sort) as sort FROM $questionTable
@@ -2074,10 +2057,6 @@ class SurveyManager
 
     public static function hasDependency(CSurvey $survey)
     {
-        if ('false' === api_get_setting('survey.survey_question_dependency')) {
-            return false;
-        }
-
         $surveyId = $survey->getIid();
 
         $table = Database::get_course_table(TABLE_SURVEY_QUESTION);
diff --git a/public/main/survey/surveyUtil.class.php b/public/main/survey/surveyUtil.class.php
index 4cf9d839b2..b3e7af9fb4 100644
--- a/public/main/survey/surveyUtil.class.php
+++ b/public/main/survey/surveyUtil.class.php
@@ -3282,7 +3282,6 @@ class SurveyUtil
         $table_user = Database::get_main_table(TABLE_MAIN_USER);
         $table_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
         $mandatoryAllowed = ('true' === api_get_setting('survey.allow_mandatory_survey'));
-        $allowSurveyAvailabilityDatetime = ('true' === api_get_setting('survey.allow_survey_availability_datetime'));
 
         // Searching
         $search_restriction = self::survey_search_restriction();
@@ -3371,7 +3370,7 @@ class SurveyUtil
             if (null !== $from) {
                 $array[5] = api_convert_and_format_date(
                     $from,
-                    $allowSurveyAvailabilityDatetime ? DATE_TIME_FORMAT_LONG : DATE_FORMAT_LONG
+                    DATE_TIME_FORMAT_LONG
                 );
             }
             $till = $survey->getAvailTill() ? $survey->getAvailTill()->format('Y-m-d H:i:s') : null;
@@ -3379,7 +3378,7 @@ class SurveyUtil
             if (null !== $till) {
                 $array[6] = api_convert_and_format_date(
                     $till,
-                    $allowSurveyAvailabilityDatetime ? DATE_TIME_FORMAT_LONG : DATE_FORMAT_LONG
+                    DATE_TIME_FORMAT_LONG
                 );
             }
 
@@ -3432,7 +3431,6 @@ class SurveyUtil
     public static function get_survey_data_for_coach($from, $number_of_items, $column, $direction)
     {
         $mandatoryAllowed = ('true' === api_get_setting('survey.allow_mandatory_survey'));
-        $allowSurveyAvailabilityDatetime = ('true' === api_get_setting('survey.allow_survey_availability_datetime'));
         $repo = Container::getSurveyRepository();
         $qb = $repo->findAllByCourse(
             api_get_course_entity(),
@@ -3496,11 +3494,11 @@ class SurveyUtil
         while ($survey = Database::fetch_array($res)) {
             $survey['col5'] = api_convert_and_format_date(
                 $survey['col5'],
-                $allowSurveyAvailabilityDatetime ? DATE_TIME_FORMAT_LONG : DATE_FORMAT_LONG
+                DATE_TIME_FORMAT_LONG
             );
             $survey['col6'] = api_convert_and_format_date(
                 $survey['col6'],
-                $allowSurveyAvailabilityDatetime ? DATE_TIME_FORMAT_LONG : DATE_FORMAT_LONG
+                DATE_TIME_FORMAT_LONG
             );
 
             if ($mandatoryAllowed) {
@@ -3534,7 +3532,6 @@ class SurveyUtil
         $user_id = (int) $user_id;
         $sessionId = api_get_session_id();
         $mandatoryAllowed = ('true' === api_get_setting('survey.allow_mandatory_survey'));
-        $allowSurveyAvailabilityDatetime = ('true' === api_get_setting('survey.allow_survey_availability_datetime'));
 
         // Database table definitions
         $table_survey_invitation = Database::get_course_table(TABLE_SURVEY_INVITATION);
@@ -3554,7 +3551,7 @@ class SurveyUtil
 
         /** @var \DateTime $now */
         $now = api_get_utc_datetime(null, false, true);
-        $filterDate = $allowSurveyAvailabilityDatetime ? $now->format('Y-m-d H:i') : $now->format('Y-m-d');
+        $filterDate = $now->format('Y-m-d H:i');
         $sessionCondition = api_get_session_condition($sessionId, true, false, 'survey_invitation.session_id');
 
         $sql = "SELECT
diff --git a/public/main/survey/survey_question.php b/public/main/survey/survey_question.php
index 0a4a8abfff..2eb93cfa36 100644
--- a/public/main/survey/survey_question.php
+++ b/public/main/survey/survey_question.php
@@ -200,10 +200,6 @@ class survey_question
                 break;
         }
 
-        if ('false' === api_get_setting('survey.survey_question_dependency')) {
-            $allowParent = false;
-        }
-
         $icon = Display::getMdiIcon(
                 SurveyManager::icon_question($type),
                 'ch-tool-icon',
@@ -240,8 +236,7 @@ class survey_question
             $config
         );
 
-        if (('true' === api_get_setting('survey.allow_required_survey_questions')) &&
-            in_array($_GET['type'], ['yesno', 'multiplechoice'])) {
+        if (in_array($_GET['type'], ['yesno', 'multiplechoice'])) {
             $form->addCheckBox('is_required', get_lang('Mandatory?'), get_lang('Yes'));
         }
 
@@ -577,9 +572,6 @@ class survey_question
      */
     public static function getParents($questionId, $list = [])
     {
-        if ('false' === api_get_setting('survey.survey_question_dependency')) {
-            return $list;
-        }
         $courseId = api_get_course_int_id();
         $questionId = (int) $questionId;
 
@@ -692,9 +684,6 @@ class survey_question
      */
     public static function getDependency(array $question): ?array
     {
-        if ('false' === api_get_setting('survey.survey_question_dependency')) {
-            return [];
-        }
         $questionId = $question['question_id'];
 
         $em = Database::getManager();
diff --git a/src/CoreBundle/Controller/Admin/IndexBlocksController.php b/src/CoreBundle/Controller/Admin/IndexBlocksController.php
index 726ecc5ca7..9905aff59a 100644
--- a/src/CoreBundle/Controller/Admin/IndexBlocksController.php
+++ b/src/CoreBundle/Controller/Admin/IndexBlocksController.php
@@ -467,13 +467,11 @@ class IndexBlocksController extends BaseController
             ];
         }
 
-        if ('true' === $this->settingsManager->getSetting('mail.mail_template_system')) {
-            $items[] = [
-                'class' => 'item-mail-template',
-                'url' => $this->generateUrl('legacy_main', ['name' => 'mail_template/list.php']),
-                'label' => $this->translator->trans('Mail templates'),
-            ];
-        }
+        $items[] = [
+            'class' => 'item-mail-template',
+            'url' => $this->generateUrl('legacy_main', ['name' => 'mail_template/list.php']),
+            'label' => $this->translator->trans('Mail templates'),
+        ];
 
         if ('true' === api_get_setting('platform.notification_event')) {
             $items[] = [
@@ -649,12 +647,10 @@ class IndexBlocksController extends BaseController
             'label' => $this->translator->trans('Tickets'),
         ];
 
-        if ('true' === $this->settingsManager->getSetting('session.allow_session_status')) {
-            $items[] = [
-                'url' => $this->generateUrl('legacy_main', ['name' => 'session/cron_status.php']),
-                'label' => $this->translator->trans('Update session status'),
-            ];
-        }
+        $items[] = [
+            'url' => $this->generateUrl('legacy_main', ['name' => 'session/cron_status.php']),
+            'label' => $this->translator->trans('Update session status'),
+        ];
 
         $items[] = [
             'class' => 'item-colors',
diff --git a/src/CoreBundle/Controller/PlatformConfigurationController.php b/src/CoreBundle/Controller/PlatformConfigurationController.php
index 33e8e15850..0a5493d162 100644
--- a/src/CoreBundle/Controller/PlatformConfigurationController.php
+++ b/src/CoreBundle/Controller/PlatformConfigurationController.php
@@ -44,38 +44,26 @@ class PlatformConfigurationController extends AbstractController
                 'platform.cookie_warning',
                 'platform.show_tabs',
                 'platform.catalog_show_courses_sessions',
-
-                'admin.admin_chamilo_announcements_disable',
                 'admin.administrator_name',
                 'admin.administrator_surname',
-
                 'editor.enabled_mathjax',
                 'editor.translate_html',
-
                 'display.show_admin_toolbar',
-
                 'registration.allow_terms_conditions',
-
                 'agenda.allow_personal_agenda',
                 'agenda.personal_calendar_show_sessions_occupation',
-
                 'social.social_enable_messages_feedback',
                 'social.disable_dislike_option',
-
                 'skill.allow_skills_tool',
-
                 'gradebook.gradebook_enable_grade_model',
                 'gradebook.gradebook_dependency',
-
                 'course.course_validation',
                 'course.student_view_enabled',
                 'course.allow_edit_tool_visibility_in_session',
-
                 'session.limit_session_admin_role',
                 'session.allow_session_admin_read_careers',
                 'session.limit_session_admin_list_users',
                 'platform.redirect_index_to_url_for_logged_users',
-
                 'language.platform_language',
                 'language.language_priority_1',
                 'language.language_priority_2',
diff --git a/src/CoreBundle/DataFixtures/SettingsCurrentFixtures.php b/src/CoreBundle/DataFixtures/SettingsCurrentFixtures.php
index 54bf360283..ec1fcf6d70 100644
--- a/src/CoreBundle/DataFixtures/SettingsCurrentFixtures.php
+++ b/src/CoreBundle/DataFixtures/SettingsCurrentFixtures.php
@@ -92,11 +92,6 @@ class SettingsCurrentFixtures extends Fixture implements FixtureGroupInterface
                 'title' => 'Show teacher information in footer',
                 'comment' => 'Show the teacher reference (name and e-mail if available) in the footer?',
             ],
-            [
-                'name' => 'homepage_view',
-                'title' => 'Course homepage layout',
-                'comment' => 'How would you like the homepage of a course to look (icons layout)?',
-            ],
             [
                 'name' => 'show_toolshortcuts',
                 'title' => 'Tools shortcuts',
@@ -1554,7 +1549,7 @@ class SettingsCurrentFixtures extends Fixture implements FixtureGroupInterface
                 "comment" => "The roles set to 'true' will only appear to administrators. Other users will not be able to see them."
             ],
             [
-                "name" => "hide_send_to_hrm_users",
+                "name" => "announcements_hide_send_to_hrm_users",
                 "title" => "Hide the option to send an announcement copy to HRM",
                 "comment" => "In the announcements form, an option normally appears to allow teachers to send a copy of the announcement to the user's HRM. Set this to \"Yes\" to remote the option (and *not* send the copy)."
             ],
diff --git a/src/CoreBundle/Migrations/Schema/V200/Version20170627122900.php b/src/CoreBundle/Migrations/Schema/V200/Version20170627122900.php
index 8c8357e513..56f4e64f44 100644
--- a/src/CoreBundle/Migrations/Schema/V200/Version20170627122900.php
+++ b/src/CoreBundle/Migrations/Schema/V200/Version20170627122900.php
@@ -105,7 +105,6 @@ class Version20170627122900 extends AbstractMigrationChamilo
             'languagePriority3' => 'language_priority_3',
             'languagePriority4' => 'language_priority_4',
             'gradebook_score_display_coloring' => 'my_display_coloring',
-            'document_if_file_exists_option' => 'if_file_exists_option',
             'ProfilingFilterAddingUsers' => 'profiling_filter_adding_users',
             'course_create_active_tools' => 'active_tools_on_create',
             'EmailAdministrator' => 'administrator_email',
@@ -245,7 +244,6 @@ class Version20170627122900 extends AbstractMigrationChamilo
             'extend_rights_for_coach_on_survey' => 'survey',
             'hide_course_group_if_no_tools_available' => 'group',
             'hide_dltt_markup' => 'language',
-            'if_file_exists_option' => 'document',
             'language_priority_1' => 'language',
             'language_priority_2' => 'language',
             'language_priority_3' => 'language',
@@ -310,7 +308,6 @@ class Version20170627122900 extends AbstractMigrationChamilo
             'show_toolshortcuts',
             'show_tabs',
             'display_mini_month_calendar',
-            'number_of_upcoming_events',
             'facebook_description',
             'ldap_description',
             'openid_authentication',
diff --git a/src/CoreBundle/Migrations/Schema/V200/Version20230216122900.php b/src/CoreBundle/Migrations/Schema/V200/Version20230216122900.php
index a7f09b29c0..8ce89a8706 100644
--- a/src/CoreBundle/Migrations/Schema/V200/Version20230216122900.php
+++ b/src/CoreBundle/Migrations/Schema/V200/Version20230216122900.php
@@ -50,7 +50,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'session_courses_read_only_mode',
                 'session_import_settings',
                 'catalog_settings',
-                'allow_session_status',
                 'tracking_columns',
                 'my_progress_session_show_all_courses',
                 'assignment_base_course_teacher_access_to_all_session',
@@ -127,10 +126,7 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'table_row_list',
                 'video_features',
                 'proxy_settings',
-                'theme_fallback',
                 'unoconv_binaries',
-                'packager',
-                'sync_db_with_schema',
                 'hide_main_navigation_menu',
                 'pdf_img_dpi',
                 'tracking_skip_generic_data',
@@ -140,14 +136,7 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'block_my_progress_page',
                 'generate_random_login',
                 'timepicker_increment',
-                'allow_portfolio_tool',
-                'session_stored_in_db_as_backup',
-                'memcache_server',
-                'session_stored_after_n_times',
                 'default_template',
-                'aspell_bin',
-                'aspell_opts',
-                'aspell_temp_dir',
                 'webservice_return_user_field',
                 'multiple_url_hide_disabled_settings',
                 'login_max_attempt_before_blocking_account',
@@ -164,7 +153,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'use_career_external_id_as_identifier_in_diagrams',
                 'disable_webservices',
                 'webservice_enable_adminonly_api',
-                'plugin_settings',
                 'allow_working_time_edition',
                 'disable_user_conditions_sender_id',
                 'portfolio_advanced_sharing',
@@ -208,7 +196,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'usergroup_do_not_unsubscribe_users_from_course_on_course_unsubscribe',
                 'usergroup_do_not_unsubscribe_users_from_session_on_session_unsubscribe',
                 'drh_allow_access_to_all_students',
-                'admin_chamilo_announcements_disable',
             ],
             'Agenda' => [
                 'personal_agenda_show_all_session_events',
@@ -259,17 +246,16 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'lp_start_and_end_date_visible_in_student_view',
                 'scorm_lms_update_sco_status_all_time',
                 'scorm_upload_from_cache',
-                'lp_prerequisit_on_quiz_unblock_if_max_attempt_reached',
+                'lp_prerequisite_on_quiz_unblock_if_max_attempt_reached',
                 'student_follow_page_hide_lp_tests_average',
-                'student_follow_page_add_LP_acquisition_info',
-                'student_follow_page_add_LP_invisible_checkbox',
+                'student_follow_page_add_lp_acquisition_info',
+                'student_follow_page_add_lp_invisible_checkbox',
                 'student_follow_page_include_not_subscribed_lp_students',
                 'my_progress_course_tools_order',
                 'lp_enable_flow',
                 'lp_item_prerequisite_dates',
             ],
             'Gradebook' => [
-                'gradebook_enable_best_score',
                 'gradebook_hide_graph',
                 'gradebook_hide_pdf_report_button',
                 'hide_gradebook_percentage_user_result',
@@ -342,7 +328,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'exercise_result_end_text_html_strict_filtering',
                 'question_exercise_html_strict_filtering',
                 'quiz_question_delete_automatically_when_deleting_exercise',
-                'quiz_question_allow_inter_course_linking',
                 'quiz_hide_attempts_table_on_start_page',
                 'quiz_hide_question_number',
                 'quiz_keep_alive_ping_interval',
@@ -364,7 +349,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'private_messages_about_user_visible_to_user',
                 'social_enable_messages_feedback',
                 'disable_dislike_option',
-                'enable_message_tags',
                 'allow_user_message_tracking',
                 'filter_interactivity_messages',
             ],
@@ -391,19 +375,14 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'course_chat_restrict_to_coach',
             ],
             'Survey' => [
-                'allow_required_survey_questions',
                 'hide_survey_reporting_button',
-                'allow_survey_availability_datetime',
                 'survey_mark_question_as_required',
                 'survey_anonymous_show_answered',
-                'survey_question_dependency',
                 'survey_allow_answered_question_edit',
                 'survey_duplicate_order_by_name',
                 'survey_backwards_enable',
-                'allow_mandatory_survey',
                 'hide_survey_edition',
                 'survey_additional_teacher_modify_actions',
-                'allow_survey_tool_in_lp',
                 'show_surveys_base_in_sessions',
             ],
             'Document' => [
@@ -441,7 +420,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
             ],
             'Mail' => [
                 'update_users_email_to_dummy_except_admins',
-                'hosting_total_size_limit',
                 'mail_header_style',
                 'mail_content_style',
                 'allow_email_editor_for_anonymous',
@@ -449,8 +427,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'send_two_inscription_confirmation_mail',
                 'show_user_email_in_notification',
                 'send_notification_score_in_percentage',
-                'mail_template_system',
-                'cron_notification_mails',
                 'cron_notification_help_desk',
                 'notifications_extended_footer_message',
             ],
@@ -728,8 +704,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
             'Mail' => [
                 'notifications_extended_footer_message',
                 'cron_notification_help_desk',
-                'cron_notification_mails',
-                'mail_template_system',
                 'send_notification_score_in_percentage',
                 'show_user_email_in_notification',
                 'send_two_inscription_confirmation_mail',
@@ -738,7 +712,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'allow_email_editor_for_anonymous',
                 'mail_content_style',
                 'mail_header_style',
-                'hosting_total_size_limit',
                 'update_users_email_to_dummy_except_admins',
             ],
             'Skill' => [
@@ -776,19 +749,14 @@ class Version20230216122900 extends AbstractMigrationChamilo
             ],
             'Survey' => [
                 'show_surveys_base_in_sessions',
-                'allow_survey_tool_in_lp',
                 'survey_additional_teacher_modify_actions',
                 'hide_survey_edition',
-                'allow_mandatory_survey',
                 'survey_backwards_enable',
                 'survey_duplicate_order_by_name',
                 'survey_allow_answered_question_edit',
-                'survey_question_dependency',
                 'survey_anonymous_show_answered',
                 'survey_mark_question_as_required',
-                'allow_survey_availability_datetime',
                 'hide_survey_reporting_button',
-                'allow_required_survey_questions',
             ],
             'Chat' => [
                 'course_chat_restrict_to_coach',
@@ -815,7 +783,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
             'Message' => [
                 'filter_interactivity_messages',
                 'allow_user_message_tracking',
-                'enable_message_tags',
                 'disable_dislike_option',
                 'social_enable_messages_feedback',
                 'private_messages_about_user_visible_to_user',
@@ -837,7 +804,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'quiz_keep_alive_ping_interval',
                 'quiz_hide_question_number',
                 'quiz_hide_attempts_table_on_start_page',
-                'quiz_question_allow_inter_course_linking',
                 'quiz_question_delete_automatically_when_deleting_exercise',
                 'question_exercise_html_strict_filtering',
                 'exercise_result_end_text_html_strict_filtering',
@@ -910,17 +876,16 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'hide_gradebook_percentage_user_result',
                 'gradebook_hide_pdf_report_button',
                 'gradebook_hide_graph',
-                'gradebook_enable_best_score',
             ],
             'Lp' => [
                 'lp_item_prerequisite_dates',
                 'lp_enable_flow',
                 'my_progress_course_tools_order',
                 'student_follow_page_include_not_subscribed_lp_students',
-                'student_follow_page_add_LP_invisible_checkbox',
-                'student_follow_page_add_LP_acquisition_info',
+                'student_follow_page_add_lp_invisible_checkbox',
+                'student_follow_page_add_lp_acquisition_info',
                 'student_follow_page_hide_lp_tests_average',
-                'lp_prerequisit_on_quiz_unblock_if_max_attempt_reached',
+                'lp_prerequisite_on_quiz_unblock_if_max_attempt_reached',
                 'scorm_upload_from_cache',
                 'scorm_lms_update_sco_status_all_time',
                 'lp_start_and_end_date_visible_in_student_view',
@@ -980,7 +945,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'max_anonymous_users',
                 'show_link_request_hrm_user',
                 'user_status_option_only_for_admin_enabled',
-                'admin_chamilo_announcements_disable',
             ],
             'Profile' => [
                 'hide_username_in_course_chat',
@@ -1015,7 +979,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'portfolio_advanced_sharing',
                 'disable_user_conditions_sender_id',
                 'allow_working_time_edition',
-                'plugin_settings',
                 'webservice_enable_adminonly_api',
                 'disable_webservices',
                 'use_career_external_id_as_identifier_in_diagrams',
@@ -1032,14 +995,7 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'login_max_attempt_before_blocking_account',
                 'multiple_url_hide_disabled_settings',
                 'webservice_return_user_field',
-                'aspell_temp_dir',
-                'aspell_opts',
-                'aspell_bin',
                 'default_template',
-                'session_stored_after_n_times',
-                'memcache_server',
-                'session_stored_in_db_as_backup',
-                'allow_portfolio_tool',
                 'timepicker_increment',
                 'generate_random_login',
                 'block_my_progress_page',
@@ -1049,10 +1005,7 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'tracking_skip_generic_data',
                 'pdf_img_dpi',
                 'hide_main_navigation_menu',
-                'sync_db_with_schema',
-                'packager',
                 'unoconv_binaries',
-                'theme_fallback',
                 'proxy_settings',
                 'video_features',
                 'table_row_list',
@@ -1129,7 +1082,6 @@ class Version20230216122900 extends AbstractMigrationChamilo
                 'assignment_base_course_teacher_access_to_all_session',
                 'my_progress_session_show_all_courses',
                 'tracking_columns',
-                'allow_session_status',
                 'catalog_settings',
                 'session_import_settings',
                 'session_courses_read_only_mode',
diff --git a/src/CoreBundle/Settings/AdminSettingsSchema.php b/src/CoreBundle/Settings/AdminSettingsSchema.php
index 9f2a07ebd0..a312e64f26 100644
--- a/src/CoreBundle/Settings/AdminSettingsSchema.php
+++ b/src/CoreBundle/Settings/AdminSettingsSchema.php
@@ -35,7 +35,6 @@ class AdminSettingsSchema extends AbstractSettingsSchema
                     'drh_allow_access_to_all_students' => 'false',
                     'user_status_option_only_for_admin_enabled' => 'false',
                     'user_status_option_show_only_for_admin' => '',
-                    'admin_chamilo_announcements_disable' => 'false',
                 ]
             )
         ;
@@ -74,7 +73,6 @@ class AdminSettingsSchema extends AbstractSettingsSchema
                         $this->settingArrayHelpValue('user_status_option_show_only_for_admin'),
                 ]
             )
-            ->add('admin_chamilo_announcements_disable', YesNoType::class)
         ;
 
         $this->updateFormFieldsFromSettingsInfo($builder);
diff --git a/src/CoreBundle/Settings/AgendaSettingsSchema.php b/src/CoreBundle/Settings/AgendaSettingsSchema.php
index bbdb624479..5ec6faf428 100644
--- a/src/CoreBundle/Settings/AgendaSettingsSchema.php
+++ b/src/CoreBundle/Settings/AgendaSettingsSchema.php
@@ -21,10 +21,6 @@ class AgendaSettingsSchema extends AbstractSettingsSchema
             ->setDefaults(
                 [
                     'allow_personal_agenda' => 'true',
-                    // 'display_mini_month_calendar' => '', ??
-                    'display_upcoming_events' => '',
-                    // ??
-                    // 'number_of_upcoming_events' => '0',
                     'default_calendar_view' => 'month',
                     'personal_calendar_show_sessions_occupation' => 'false',
                     'personal_agenda_show_all_session_events' => 'false',
@@ -41,9 +37,6 @@ class AgendaSettingsSchema extends AbstractSettingsSchema
 
         $allowedTypes = [
             'allow_personal_agenda' => ['string'],
-            // 'display_mini_month_calendar' => array('string'),
-            'display_upcoming_events' => ['string'],
-            // 'number_of_upcoming_events' => array('string'),
             'default_calendar_view' => ['string'],
         ];
         $this->setMultipleAllowedTypes($allowedTypes, $builder);
@@ -53,9 +46,6 @@ class AgendaSettingsSchema extends AbstractSettingsSchema
     {
         $builder
             ->add('allow_personal_agenda', YesNoType::class)
-            // ->add('display_mini_month_calendar', YesNoType::class)
-            ->add('display_upcoming_events', YesNoType::class)
-            // ->add('number_of_upcoming_events')
             ->add(
                 'default_calendar_view',
                 ChoiceType::class,
diff --git a/src/CoreBundle/Settings/AnnouncementSettingsSchema.php b/src/CoreBundle/Settings/AnnouncementSettingsSchema.php
index c9bdda5abb..4c19e78ff5 100644
--- a/src/CoreBundle/Settings/AnnouncementSettingsSchema.php
+++ b/src/CoreBundle/Settings/AnnouncementSettingsSchema.php
@@ -19,14 +19,13 @@ class AnnouncementSettingsSchema extends AbstractSettingsSchema
             ->setDefaults(
                 [
                     'hide_global_announcements_when_not_connected' => 'false',
-                    'hide_send_to_hrm_users' => 'true',
+                    'announcements_hide_send_to_hrm_users' => 'true',
                     'disable_announcement_attachment' => 'false',
                     'allow_scheduled_announcements' => 'false',
                     'disable_delete_all_announcements' => 'false',
                     'hide_announcement_sent_to_users_info' => 'false',
                     'send_all_emails_to' => '',
                     'allow_careers_in_global_announcements' => 'false',
-                    'announcements_hide_send_to_hrm_users' => 'false',
                     'allow_coach_to_edit_announcements' => 'false',
                     'course_announcement_scheduled_by_date' => 'false',
                 ]
@@ -43,7 +42,7 @@ class AnnouncementSettingsSchema extends AbstractSettingsSchema
     {
         $builder
             ->add('hide_global_announcements_when_not_connected', YesNoType::class)
-            ->add('hide_send_to_hrm_users', YesNoType::class)
+            ->add('announcements_hide_send_to_hrm_users', YesNoType::class)
             ->add('disable_announcement_attachment', YesNoType::class)
             ->add('allow_scheduled_announcements', YesNoType::class)
             ->add('disable_delete_all_announcements', YesNoType::class)
@@ -60,7 +59,6 @@ class AnnouncementSettingsSchema extends AbstractSettingsSchema
                 ]
             )
             ->add('allow_careers_in_global_announcements', YesNoType::class)
-            ->add('announcements_hide_send_to_hrm_users', YesNoType::class)
             ->add('allow_coach_to_edit_announcements', YesNoType::class)
             ->add('course_announcement_scheduled_by_date', YesNoType::class)
         ;
diff --git a/src/CoreBundle/Settings/CertificateSettingsSchema.php b/src/CoreBundle/Settings/CertificateSettingsSchema.php
index 5aaae87c0c..0ee150433f 100644
--- a/src/CoreBundle/Settings/CertificateSettingsSchema.php
+++ b/src/CoreBundle/Settings/CertificateSettingsSchema.php
@@ -18,7 +18,6 @@ class CertificateSettingsSchema extends AbstractSettingsSchema
             ->setDefaults(
                 [
                     'hide_my_certificate_link' => 'false',
-                    'hide_header_footer' => 'false',
                     'add_certificate_pdf_footer' => 'false',
                 ]
             )
@@ -34,7 +33,6 @@ class CertificateSettingsSchema extends AbstractSettingsSchema
     {
         $builder
             ->add('hide_my_certificate_link', YesNoType::class)
-            ->add('hide_header_footer', YesNoType::class)
             ->add('add_certificate_pdf_footer', YesNoType::class)
         ;
 
diff --git a/src/CoreBundle/Settings/CourseSettingsSchema.php b/src/CoreBundle/Settings/CourseSettingsSchema.php
index 277586f49a..a9140e32f0 100644
--- a/src/CoreBundle/Settings/CourseSettingsSchema.php
+++ b/src/CoreBundle/Settings/CourseSettingsSchema.php
@@ -49,8 +49,6 @@ class CourseSettingsSchema extends AbstractSettingsSchema
         $builder
             ->setDefaults(
                 [
-                    'homepage_view' => 'activity_big',
-                    'show_tool_shortcuts' => 'false',
                     // @todo check default value?
                     'active_tools_on_create' => $tools,
                     'display_coursecode_in_courselist' => 'false',
@@ -138,7 +136,6 @@ class CourseSettingsSchema extends AbstractSettingsSchema
         ;
 
         $allowedTypes = [
-            'homepage_view' => ['string'],
             'active_tools_on_create' => ['array'],
             'course_hide_tools' => ['array'],
             'display_coursecode_in_courselist' => ['string'],
@@ -154,20 +151,6 @@ class CourseSettingsSchema extends AbstractSettingsSchema
         $tools = $this->getProcessedToolChain();
 
         $builder
-            ->add(
-                'homepage_view',
-                ChoiceType::class,
-                [
-                    'choices' => [
-                        // 'HomepageView2column' => '2column',
-                        // 'HomepageView3column' => '3column',
-                        // 'HomepageViewVerticalActivity' => 'vertical_activity',
-                        // 'HomepageViewActivity' => 'activity',
-                        'HomepageViewActivityBig' => 'activity_big',
-                    ],
-                ]
-            )
-            ->add('show_tool_shortcuts', YesNoType::class)
             ->add(
                 'active_tools_on_create',
                 ChoiceType::class,
diff --git a/src/CoreBundle/Settings/DisplaySettingsSchema.php b/src/CoreBundle/Settings/DisplaySettingsSchema.php
index 08ab43538f..d5435d9e63 100644
--- a/src/CoreBundle/Settings/DisplaySettingsSchema.php
+++ b/src/CoreBundle/Settings/DisplaySettingsSchema.php
@@ -51,7 +51,6 @@ class DisplaySettingsSchema extends AbstractSettingsSchema
                     'hide_logout_button' => 'false',
                     'show_link_ticket_notification' => 'false',
                     'icons_mode_svg' => 'false',
-                    'default_template' => 'default',
                     'hide_social_media_links' => 'false',
                 ]
             )
@@ -114,7 +113,6 @@ class DisplaySettingsSchema extends AbstractSettingsSchema
             ->add('hide_logout_button', YesNoType::class)
             ->add('show_link_ticket_notification', YesNoType::class)
             ->add('icons_mode_svg', YesNoType::class)
-            ->add('default_template')
             ->add('hide_social_media_links', YesNoType::class)
         ;
 
diff --git a/src/CoreBundle/Settings/DocumentSettingsSchema.php b/src/CoreBundle/Settings/DocumentSettingsSchema.php
index 2280e0c16a..f3b379a317 100644
--- a/src/CoreBundle/Settings/DocumentSettingsSchema.php
+++ b/src/CoreBundle/Settings/DocumentSettingsSchema.php
@@ -42,7 +42,6 @@ class DocumentSettingsSchema extends AbstractSettingsSchema
                     'enabled_text2audio' => 'false',
                     // 'enable_nanogong' => 'false',
                     'show_documents_preview' => 'false',
-                    'enable_wami_record' => 'false',
                     'enable_webcam_clip' => 'false',
                     'tool_visible_by_default_at_creation' => [
                         'documents',
@@ -54,10 +53,6 @@ class DocumentSettingsSchema extends AbstractSettingsSchema
                         'gradebook',
                     ],
                     'documents_default_visibility_defined_in_course' => 'false',
-                    // ?
-                    'allow_personal_user_files' => '',
-                    // ?
-                    'if_file_exists_option' => 'rename',
                     'send_notification_when_document_added' => 'false',
                     'thematic_pdf_orientation' => 'landscape',
                     'certificate_pdf_orientation' => 'landscape',
@@ -88,7 +83,6 @@ class DocumentSettingsSchema extends AbstractSettingsSchema
     public function buildForm(FormBuilderInterface $builder): void
     {
         $builder
-            ->add('allow_personal_user_files', YesNoType::class)
             ->add('default_document_quotum')
             ->add('default_group_quotum')
             ->add('permanently_remove_deleted_files', YesNoType::class)
@@ -130,7 +124,6 @@ class DocumentSettingsSchema extends AbstractSettingsSchema
             ->add('enabled_text2audio', YesNoType::class)
             // ->add('enable_nanogong', YesNoType::class)
             ->add('show_documents_preview', YesNoType::class)
-            ->add('enable_wami_record', YesNoType::class)
             ->add('enable_webcam_clip', YesNoType::class)
             ->add(
                 'tool_visible_by_default_at_creation',
@@ -148,16 +141,6 @@ class DocumentSettingsSchema extends AbstractSettingsSchema
                     ],
                 ]
             )
-            ->add(
-                'if_file_exists_option',
-                ChoiceType::class,
-                [
-                    'choices' => [
-                        'Rename' => 'rename',
-                        'Overwrite' => 'overwrite',
-                    ],
-                ]
-            )
             ->add('send_notification_when_document_added', YesNoType::class)
             ->add(
                 'thematic_pdf_orientation',
diff --git a/src/CoreBundle/Settings/EditorSettingsSchema.php b/src/CoreBundle/Settings/EditorSettingsSchema.php
index 33a51cb81e..b5ecd58aa8 100644
--- a/src/CoreBundle/Settings/EditorSettingsSchema.php
+++ b/src/CoreBundle/Settings/EditorSettingsSchema.php
@@ -19,7 +19,6 @@ class EditorSettingsSchema extends AbstractSettingsSchema
             ->setDefaults(
                 [
                     'allow_email_editor' => '',
-                    'math_mimetex' => '',
                     'math_asciimathML' => '',
                     'enabled_asciisvg' => '',
                     'include_asciimathml_script' => '',
@@ -59,7 +58,6 @@ class EditorSettingsSchema extends AbstractSettingsSchema
     {
         $builder
             ->add('allow_email_editor', YesNoType::class)
-            ->add('math_mimetex', YesNoType::class)
             ->add('math_asciimathML', YesNoType::class)
             ->add('enabled_asciisvg', YesNoType::class)
             ->add('include_asciimathml_script', YesNoType::class)
diff --git a/src/CoreBundle/Settings/ExerciseSettingsSchema.php b/src/CoreBundle/Settings/ExerciseSettingsSchema.php
index b6c7486372..121114a385 100644
--- a/src/CoreBundle/Settings/ExerciseSettingsSchema.php
+++ b/src/CoreBundle/Settings/ExerciseSettingsSchema.php
@@ -80,7 +80,6 @@ class ExerciseSettingsSchema extends AbstractSettingsSchema
                     'exercise_result_end_text_html_strict_filtering' => 'false',
                     'question_exercise_html_strict_filtering' => 'false',
                     'quiz_question_delete_automatically_when_deleting_exercise' => 'false',
-                    'quiz_question_allow_inter_course_linking' => 'false',
                     'quiz_hide_attempts_table_on_start_page' => 'false',
                     'quiz_hide_question_number' => 'false',
                     'quiz_keep_alive_ping_interval' => '0',
@@ -209,7 +208,6 @@ class ExerciseSettingsSchema extends AbstractSettingsSchema
             ->add('exercise_result_end_text_html_strict_filtering', YesNoType::class)
             ->add('question_exercise_html_strict_filtering', YesNoType::class)
             ->add('quiz_question_delete_automatically_when_deleting_exercise', YesNoType::class)
-            ->add('quiz_question_allow_inter_course_linking', YesNoType::class)
             ->add('quiz_hide_attempts_table_on_start_page', YesNoType::class)
             ->add('quiz_hide_question_number', YesNoType::class)
             ->add('quiz_keep_alive_ping_interval', TextType::class)
diff --git a/src/CoreBundle/Settings/GradebookSettingsSchema.php b/src/CoreBundle/Settings/GradebookSettingsSchema.php
index 34599dba07..6f52826571 100644
--- a/src/CoreBundle/Settings/GradebookSettingsSchema.php
+++ b/src/CoreBundle/Settings/GradebookSettingsSchema.php
@@ -31,7 +31,6 @@ class GradebookSettingsSchema extends AbstractSettingsSchema
                     'gradebook_default_weight' => '100',
                     'gradebook_locking_enabled' => 'false',
                     'gradebook_default_grade_model_id' => '',
-                    'gradebook_show_percentage_in_reports' => '',
                     'my_display_coloring' => 'false',
                     'student_publication_to_take_in_gradebook' => 'first',
                     'gradebook_detailed_admin_view' => 'false',
@@ -40,7 +39,6 @@ class GradebookSettingsSchema extends AbstractSettingsSchema
                     'add_gradebook_certificates_cron_task_enabled' => 'false',
                     'certificate_filter_by_official_code' => 'false',
                     'hide_certificate_export_link_students' => 'false',
-                    'gradebook_enable_best_score' => 'false',
                     'gradebook_hide_graph' => 'false',
                     'gradebook_hide_pdf_report_button' => 'false',
                     'hide_gradebook_percentage_user_result' => 'true',
@@ -89,7 +87,6 @@ class GradebookSettingsSchema extends AbstractSettingsSchema
             ->add('gradebook_default_weight')
             ->add('gradebook_locking_enabled', YesNoType::class)
             ->add('gradebook_default_grade_model_id')
-            ->add('gradebook_show_percentage_in_reports')
             ->add('my_display_coloring', YesNoType::class)
             ->add(
                 'student_publication_to_take_in_gradebook',
@@ -107,8 +104,6 @@ class GradebookSettingsSchema extends AbstractSettingsSchema
             ->add('add_gradebook_certificates_cron_task_enabled', YesNoType::class)
             ->add('certificate_filter_by_official_code', YesNoType::class)
             ->add('hide_certificate_export_link_students', YesNoType::class)
-            ->add('gradebook_enable_best_score', YesNoType::class)
-            ->add('gradebook_hide_graph', YesNoType::class)
             ->add('gradebook_hide_pdf_report_button', YesNoType::class)
             ->add('hide_gradebook_percentage_user_result', YesNoType::class)
             ->add('gradebook_use_exercise_score_settings_in_categories', YesNoType::class)
diff --git a/src/CoreBundle/Settings/LearningPathSettingsSchema.php b/src/CoreBundle/Settings/LearningPathSettingsSchema.php
index c5412d2913..cbfbab3613 100644
--- a/src/CoreBundle/Settings/LearningPathSettingsSchema.php
+++ b/src/CoreBundle/Settings/LearningPathSettingsSchema.php
@@ -20,7 +20,6 @@ class LearningPathSettingsSchema extends AbstractSettingsSchema
         $builder
             ->setDefaults(
                 [
-                    'fixed_encoding' => 'false',
                     'show_invisible_exercise_in_lp_toc' => 'false',
                     'add_all_files_in_lp_export' => 'false',
                     'show_prerequisite_as_blocked' => 'false',
@@ -60,10 +59,10 @@ class LearningPathSettingsSchema extends AbstractSettingsSchema
                     'lp_start_and_end_date_visible_in_student_view' => 'false',
                     'scorm_lms_update_sco_status_all_time' => 'false',
                     'scorm_upload_from_cache' => 'false',
-                    'lp_prerequisit_on_quiz_unblock_if_max_attempt_reached' => 'false',
+                    'lp_prerequisite_on_quiz_unblock_if_max_attempt_reached' => 'false',
                     'student_follow_page_hide_lp_tests_average' => 'false',
-                    'student_follow_page_add_LP_acquisition_info' => 'false',
-                    'student_follow_page_add_LP_invisible_checkbox' => 'false',
+                    'student_follow_page_add_lp_acquisition_info' => 'false',
+                    'student_follow_page_add_lp_invisible_checkbox' => 'false',
                     'student_follow_page_include_not_subscribed_lp_students' => 'false',
                     'my_progress_course_tools_order' => '',
                     'lp_enable_flow' => 'false',
@@ -72,16 +71,13 @@ class LearningPathSettingsSchema extends AbstractSettingsSchema
             )
         ;
 
-        $allowedTypes = [
-            'fixed_encoding' => ['string'],
-        ];
+        $allowedTypes = [];
         $this->setMultipleAllowedTypes($allowedTypes, $builder);
     }
 
     public function buildForm(FormBuilderInterface $builder): void
     {
         $builder
-            ->add('fixed_encoding', YesNoType::class)
             ->add('show_invisible_exercise_in_lp_toc', YesNoType::class)
             ->add('add_all_files_in_lp_export', YesNoType::class)
             ->add('show_prerequisite_as_blocked', YesNoType::class)
@@ -161,10 +157,10 @@ class LearningPathSettingsSchema extends AbstractSettingsSchema
             ->add('lp_start_and_end_date_visible_in_student_view', YesNoType::class)
             ->add('scorm_lms_update_sco_status_all_time', YesNoType::class)
             ->add('scorm_upload_from_cache', YesNoType::class)
-            ->add('lp_prerequisit_on_quiz_unblock_if_max_attempt_reached', YesNoType::class)
+            ->add('lp_prerequisite_on_quiz_unblock_if_max_attempt_reached', YesNoType::class)
             ->add('student_follow_page_hide_lp_tests_average', YesNoType::class)
-            ->add('student_follow_page_add_LP_acquisition_info', YesNoType::class)
-            ->add('student_follow_page_add_LP_invisible_checkbox', YesNoType::class)
+            ->add('student_follow_page_add_lp_acquisition_info', YesNoType::class)
+            ->add('student_follow_page_add_lp_invisible_checkbox', YesNoType::class)
             ->add('student_follow_page_include_not_subscribed_lp_students', YesNoType::class)
             ->add(
                 'my_progress_course_tools_order',
diff --git a/src/CoreBundle/Settings/MailSettingsSchema.php b/src/CoreBundle/Settings/MailSettingsSchema.php
index 01b227c640..0d325c5a18 100644
--- a/src/CoreBundle/Settings/MailSettingsSchema.php
+++ b/src/CoreBundle/Settings/MailSettingsSchema.php
@@ -22,7 +22,6 @@ class MailSettingsSchema extends AbstractSettingsSchema
                 [
                     'noreply_email_address' => 'no_reply@example.com',
                     'update_users_email_to_dummy_except_admins' => 'false',
-                    'hosting_total_size_limit' => '0',
                     'mail_header_style' => '',
                     'mail_content_style' => '',
                     'allow_email_editor_for_anonymous' => 'true',
@@ -30,8 +29,6 @@ class MailSettingsSchema extends AbstractSettingsSchema
                     'send_two_inscription_confirmation_mail' => 'false',
                     'show_user_email_in_notification' => 'false',
                     'send_notification_score_in_percentage' => 'false',
-                    'mail_template_system' => 'false',
-                    'cron_notification_mails' => '',
                     'cron_notification_help_desk' => '',
                     'notifications_extended_footer_message' => '',
                 ]
@@ -45,7 +42,6 @@ class MailSettingsSchema extends AbstractSettingsSchema
         $builder
             ->add('noreply_email_address', EmailType::class)
             ->add('update_users_email_to_dummy_except_admins', YesNoType::class)
-            ->add('hosting_total_size_limit', TextType::class)
             ->add('mail_header_style', TextType::class)
             ->add('mail_content_style', TextType::class)
             ->add('allow_email_editor_for_anonymous', YesNoType::class)
@@ -53,16 +49,6 @@ class MailSettingsSchema extends AbstractSettingsSchema
             ->add('send_two_inscription_confirmation_mail', YesNoType::class)
             ->add('show_user_email_in_notification', YesNoType::class)
             ->add('send_notification_score_in_percentage', YesNoType::class)
-            ->add('mail_template_system', YesNoType::class)
-            ->add(
-                'cron_notification_mails',
-                TextareaType::class,
-                [
-                    'help_html' => true,
-                    'help' => get_lang('E-mail accounts to send notifications to when executing cronjobs - works for main/cron/import_csv.php').
-                        $this->settingArrayHelpValue('cron_notification_mails'),
-                ]
-            )
             ->add(
                 'cron_notification_help_desk',
                 TextareaType::class,
@@ -89,9 +75,6 @@ class MailSettingsSchema extends AbstractSettingsSchema
     private function settingArrayHelpValue(string $variable): string
     {
         $values = [
-            'cron_notification_mails' => "<pre>
-                ['email@example.com', 'email2@example.com']
-                </pre>",
             'cron_notification_help_desk' => "<pre>
                 ['email@example.com', 'email2@example.com']
                 </pre>",
diff --git a/src/CoreBundle/Settings/MessageSettingsSchema.php b/src/CoreBundle/Settings/MessageSettingsSchema.php
index 477bbc134d..c211a2ad32 100644
--- a/src/CoreBundle/Settings/MessageSettingsSchema.php
+++ b/src/CoreBundle/Settings/MessageSettingsSchema.php
@@ -24,7 +24,6 @@ class MessageSettingsSchema extends AbstractSettingsSchema
                     'private_messages_about_user_visible_to_user' => 'false',
                     'social_enable_messages_feedback' => 'false',
                     'disable_dislike_option' => 'false',
-                    'enable_message_tags' => 'false',
                     'allow_user_message_tracking' => 'false',
                     'filter_interactivity_messages' => 'false',
                 ]
@@ -47,7 +46,6 @@ class MessageSettingsSchema extends AbstractSettingsSchema
             ->add('private_messages_about_user_visible_to_user', YesNoType::class)
             ->add('social_enable_messages_feedback', YesNoType::class)
             ->add('disable_dislike_option', YesNoType::class)
-            ->add('enable_message_tags', YesNoType::class)
             ->add('allow_user_message_tracking', YesNoType::class)
             ->add('filter_interactivity_messages', YesNoType::class)
         ;
diff --git a/src/CoreBundle/Settings/PlatformSettingsSchema.php b/src/CoreBundle/Settings/PlatformSettingsSchema.php
index c6c9114cf7..842c2fe876 100644
--- a/src/CoreBundle/Settings/PlatformSettingsSchema.php
+++ b/src/CoreBundle/Settings/PlatformSettingsSchema.php
@@ -53,15 +53,11 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
                     'pdf_logo_header' => '',
                     'allow_my_files' => 'true',
                     'registered' => 'false',
-                    'keep_old_images_after_delete' => 'true',
                     'load_term_conditions_section' => 'login',
                     'server_type' => 'prod',
                     'show_tabs' => array_values(self::$tabs),
                     'chamilo_database_version' => '2.0.0',
-                    'theme_fallback' => 'chamilo',
                     'unoconv_binaries' => '/usr/bin/unoconv',
-                    'packager' => 'chamilo',
-                    'sync_db_with_schema' => 'false',
                     'hide_main_navigation_menu' => 'false',
                     'pdf_img_dpi' => '96',
                     'tracking_skip_generic_data' => 'false',
@@ -74,14 +70,6 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
                     'proxy_settings' => '',
                     'video_features' => '',
                     'table_row_list' => '',
-                    'allow_portfolio_tool' => 'false',
-                    'session_stored_in_db_as_backup' => 'false',
-                    'memcache_server' => '',
-                    'session_stored_after_n_times' => '10',
-                    'default_template' => 'default',
-                    'aspell_bin' => '/usr/bin/hunspell',
-                    'aspell_opts' => '-a -d en_GB -H -i utf-8',
-                    'aspell_temp_dir' => './',
                     'webservice_return_user_field' => 'oauth2_id',
                     'multiple_url_hide_disabled_settings' => 'false',
                     'login_max_attempt_before_blocking_account' => '0',
@@ -98,7 +86,6 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
                     'use_career_external_id_as_identifier_in_diagrams' => 'false',
                     'disable_webservices' => 'false',
                     'webservice_enable_adminonly_api' => 'false',
-                    'plugin_settings' => '',
                     'allow_working_time_edition' => 'false',
                     'disable_user_conditions_sender_id' => '0',
                     'portfolio_advanced_sharing' => 'false',
@@ -170,7 +157,6 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
             // old settings with no category
             ->add('chamilo_database_version')
             ->add('registered', YesNoType::class)
-            ->add('keep_old_images_after_delete', YesNoType::class)
             ->add(
                 'load_term_conditions_section',
                 ChoiceType::class,
@@ -191,14 +177,6 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
                     'help' => 'ShowTabsComment',
                 ],
             )
-            ->add(
-                'theme_fallback',
-                TextType::class,
-                [
-                    'label' => 'ThemeFallbackTitle',
-                    'help' => 'ThemeFallbackComment',
-                ]
-            )
             ->add(
                 'unoconv_binaries',
                 TextType::class,
@@ -207,15 +185,6 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
                     'help' => 'UnoconvBinariesComment',
                 ]
             )
-            ->add(
-                'packager',
-                TextType::class,
-                [
-                    'label' => 'PackagerTitle',
-                    'help' => 'PackagerComment',
-                ]
-            )
-            ->add('sync_db_with_schema', YesNoType::class)
             ->add('hide_main_navigation_menu', YesNoType::class)
             ->add('pdf_img_dpi', TextType::class)
             ->add('tracking_skip_generic_data', YesNoType::class)
@@ -259,22 +228,6 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
                         $this->settingArrayHelpValue('table_row_list'),
                 ]
             )
-            ->add('allow_portfolio_tool', YesNoType::class)
-            ->add('session_stored_in_db_as_backup', YesNoType::class)
-            ->add(
-                'memcache_server',
-                TextareaType::class,
-                [
-                    'help_html' => true,
-                    'help' => get_lang('Define the different memcache servers available').
-                        $this->settingArrayHelpValue('memcache_server'),
-                ]
-            )
-            ->add('session_stored_after_n_times', TextType::class)
-            ->add('default_template', TextType::class)
-            ->add('aspell_bin', TextType::class)
-            ->add('aspell_opts', TextType::class)
-            ->add('aspell_temp_dir', TextType::class)
             ->add('webservice_return_user_field', TextType::class)
             ->add('multiple_url_hide_disabled_settings', YesNoType::class)
             ->add('login_max_attempt_before_blocking_account', TextType::class)
@@ -323,15 +276,6 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
             ->add('use_career_external_id_as_identifier_in_diagrams', YesNoType::class)
             ->add('disable_webservices', YesNoType::class)
             ->add('webservice_enable_adminonly_api', YesNoType::class)
-            ->add(
-                'plugin_settings',
-                TextareaType::class,
-                [
-                    'help_html' => true,
-                    'help' => get_lang('Disables the following BBB plugin settings in the plugin form and use them in priority').
-                        $this->settingArrayHelpValue('plugin_settings'),
-                ]
-            )
             ->add('allow_working_time_edition', YesNoType::class)
             ->add('disable_user_conditions_sender_id', TextType::class)
             ->add('portfolio_advanced_sharing', TextType::class)
@@ -375,18 +319,6 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
             'table_row_list' => "<pre>
                 ['options' => [50, 100, 200, 500]]
                 </pre>",
-            'memcache_server' => "<pre>
-                [
-                    0 => [
-                        'host' => 'chamilo8',
-                        'port' => '11211',
-                    ],
-                    1 => [
-                        'host' => 'chamilo9',
-                        'port' => '11211',
-                    ],
-                ]
-                </pre>",
             'extldap_config' => "<pre>
                 ['host' => '', 'port' => '']
                 </pre>",
@@ -416,15 +348,6 @@ class PlatformSettingsSchema extends AbstractSettingsSchema
                     'INVITEE' => 31
                 ]
                 </pre>",
-            'plugin_settings' => "<pre>
-                [
-                    'bbb' => [
-                        'tool_enable' => 'true', // string value
-                        'host' => 'https://www.example.com',
-                        'salt' => 'abc123'
-                    ]
-                ]
-                </pre>",
         ];
 
         $returnValue = [];
diff --git a/src/CoreBundle/Settings/ProfileSettingsSchema.php b/src/CoreBundle/Settings/ProfileSettingsSchema.php
index 68252c6935..0940a14006 100644
--- a/src/CoreBundle/Settings/ProfileSettingsSchema.php
+++ b/src/CoreBundle/Settings/ProfileSettingsSchema.php
@@ -33,7 +33,6 @@ class ProfileSettingsSchema extends AbstractSettingsSchema
                     'enable_profile_user_address_geolocalization' => '',
                     'allow_show_skype_account' => '',
                     'allow_show_linkedin_url' => '',
-                    'is_editable' => 'true',
                     'hide_username_with_complete_name' => 'false',
                     'hide_username_in_course_chat' => 'false',
                     'show_official_code_whoisonline' => 'false',
@@ -117,7 +116,6 @@ class ProfileSettingsSchema extends AbstractSettingsSchema
             ->add('enable_profile_user_address_geolocalization', YesNoType::class)
             ->add('allow_show_skype_account', YesNoType::class)
             ->add('allow_show_linkedin_url', YesNoType::class)
-            ->add('is_editable', YesNoType::class)
             ->add('hide_username_with_complete_name', YesNoType::class)
             ->add('hide_username_in_course_chat', YesNoType::class)
             ->add('show_official_code_whoisonline', YesNoType::class)
diff --git a/src/CoreBundle/Settings/SearchSettingsSchema.php b/src/CoreBundle/Settings/SearchSettingsSchema.php
index a50f7b4ffb..e73a8f229f 100644
--- a/src/CoreBundle/Settings/SearchSettingsSchema.php
+++ b/src/CoreBundle/Settings/SearchSettingsSchema.php
@@ -21,13 +21,10 @@ class SearchSettingsSchema extends AbstractSettingsSchema
                     'search_enabled' => 'false',
                     'search_prefilter_prefix' => '',
                     'search_show_unlinked_results' => 'true',
-                    'number_of_upcoming_events' => '0',
                 ]
             )
         ;
-        $allowedTypes = [
-            'number_of_upcoming_events' => ['string'],
-        ];
+        $allowedTypes = [];
         $this->setMultipleAllowedTypes($allowedTypes, $builder);
     }
 
@@ -46,7 +43,6 @@ class SearchSettingsSchema extends AbstractSettingsSchema
                     ],
                 ]
             )
-            ->add('number_of_upcoming_events')
         ;
 
         $this->updateFormFieldsFromSettingsInfo($builder);
diff --git a/src/CoreBundle/Settings/SecuritySettingsSchema.php b/src/CoreBundle/Settings/SecuritySettingsSchema.php
index c881465183..b4f14b04e8 100644
--- a/src/CoreBundle/Settings/SecuritySettingsSchema.php
+++ b/src/CoreBundle/Settings/SecuritySettingsSchema.php
@@ -19,7 +19,6 @@ class SecuritySettingsSchema extends AbstractSettingsSchema
         $builder->setDefaults(
             [
                 'filter_terms' => '',
-                'allow_browser_sniffer' => 'false',
                 'admins_can_set_users_pass' => '',
                 'allow_strength_pass_checker' => 'true',
                 'allow_captcha' => 'false',
@@ -46,7 +45,6 @@ class SecuritySettingsSchema extends AbstractSettingsSchema
             ]
         );
         $allowedTypes = [
-            'allow_browser_sniffer' => ['string'],
             'allow_strength_pass_checker' => ['string'],
         ];
         $this->setMultipleAllowedTypes($allowedTypes, $builder);
@@ -56,7 +54,6 @@ class SecuritySettingsSchema extends AbstractSettingsSchema
     {
         $builder
             ->add('filter_terms', TextareaType::class)
-            ->add('allow_browser_sniffer', YesNoType::class)
             ->add('admins_can_set_users_pass', YesNoType::class)
             ->add('allow_strength_pass_checker', YesNoType::class)
             ->add('allow_captcha', YesNoType::class)
diff --git a/src/CoreBundle/Settings/SessionSettingsSchema.php b/src/CoreBundle/Settings/SessionSettingsSchema.php
index e3b73f9ac2..9a73cc25e9 100644
--- a/src/CoreBundle/Settings/SessionSettingsSchema.php
+++ b/src/CoreBundle/Settings/SessionSettingsSchema.php
@@ -28,8 +28,6 @@ class SessionSettingsSchema extends AbstractSettingsSchema
                     'show_groups_to_users' => 'false',
                     'hide_courses_in_sessions' => 'false',
                     'allow_session_admins_to_manage_all_sessions' => 'false',
-                    'session_tutor_reports_visibility' => 'false',
-                    'session_page_enabled' => 'true',
                     'allow_teachers_to_create_sessions' => 'false',
                     'prevent_session_admins_to_manage_all_users' => 'false',
                     'session_course_ordering' => 'false',
@@ -67,7 +65,6 @@ class SessionSettingsSchema extends AbstractSettingsSchema
                     'session_courses_read_only_mode' => 'false',
                     'session_import_settings' => '',
                     'catalog_settings' => '',
-                    'allow_session_status' => 'false',
                     'tracking_columns' => '',
                     'my_progress_session_show_all_courses' => 'false',
                     'assignment_base_course_teacher_access_to_all_session' => 'false',
@@ -110,8 +107,6 @@ class SessionSettingsSchema extends AbstractSettingsSchema
             ->add('show_groups_to_users', YesNoType::class)
             ->add('hide_courses_in_sessions', YesNoType::class)
             ->add('allow_session_admins_to_manage_all_sessions', YesNoType::class)
-            ->add('session_tutor_reports_visibility', YesNoType::class)
-            ->add('session_page_enabled', YesNoType::class)
             ->add('allow_teachers_to_create_sessions', YesNoType::class)
             ->add('prevent_session_admins_to_manage_all_users', YesNoType::class)
             ->add(
@@ -191,7 +186,6 @@ class SessionSettingsSchema extends AbstractSettingsSchema
                         $this->settingArrayHelpValue('catalog_settings'),
                 ]
             )
-            ->add('allow_session_status', YesNoType::class)
             ->add(
                 'tracking_columns',
                 TextareaType::class,
diff --git a/src/CoreBundle/Settings/SettingsManager.php b/src/CoreBundle/Settings/SettingsManager.php
index a47ba5d7fc..74e2365943 100644
--- a/src/CoreBundle/Settings/SettingsManager.php
+++ b/src/CoreBundle/Settings/SettingsManager.php
@@ -609,7 +609,6 @@ class SettingsManager implements SettingsManagerInterface
             'show_administrator_data' => 'Platform',
             'show_tutor_data' => 'Session',
             'show_teacher_data' => 'Platform',
-            'homepage_view' => 'Course',
             'show_toolshortcuts' => 'Course',
             'allow_group_categories' => 'Course',
             'server_type' => 'Platform',
@@ -890,7 +889,6 @@ class SettingsManager implements SettingsManagerInterface
             'allow_download_documents_by_api_key' => 'Webservices',
             'profiling_filter_adding_users' => 'profile',
             'donotlistcampus' => 'platform',
-            'gradebook_show_percentage_in_reports' => 'gradebook',
             'course_creation_splash_screen' => 'Course',
             'translate_html' => 'Editor',
             'enable_bootstrap_in_documents_html' => 'Course',
@@ -918,7 +916,6 @@ class SettingsManager implements SettingsManagerInterface
             'languagePriority3' => 'language_priority_3',
             'languagePriority4' => 'language_priority_4',
             'gradebook_score_display_coloring' => 'my_display_coloring',
-            'document_if_file_exists_option' => 'if_file_exists_option',
             'ProfilingFilterAddingUsers' => 'profiling_filter_adding_users',
             'course_create_active_tools' => 'active_tools_on_create',
             'emailAdministrator' => 'administrator_email',
@@ -1061,12 +1058,11 @@ class SettingsManager implements SettingsManagerInterface
             'upload_extensions_skip' => 'document',
             'changeable_options' => 'profile',
             'users_copy_files' => 'document',
-            'if_file_exists_option' => 'document',
+            'document_if_file_exists_option' => 'document',
             'permissions_for_new_files' => 'document',
             'extended_profile' => 'profile',
             'split_users_upload_directory' => 'profile',
             'show_documents_preview' => 'document',
-            'decode_utf8' => 'webservice',
             'messaging_allow_send_push_notification' => 'webservice',
             'messaging_gdc_project_number' => 'webservice',
             'messaging_gdc_api_key' => 'webservice',
diff --git a/src/CoreBundle/Settings/SurveySettingsSchema.php b/src/CoreBundle/Settings/SurveySettingsSchema.php
index 3605103e5f..80f88075b2 100644
--- a/src/CoreBundle/Settings/SurveySettingsSchema.php
+++ b/src/CoreBundle/Settings/SurveySettingsSchema.php
@@ -21,19 +21,14 @@ class SurveySettingsSchema extends AbstractSettingsSchema
                 [
                     'survey_email_sender_noreply' => 'coach',
                     'extend_rights_for_coach_on_survey' => 'true',
-                    'allow_required_survey_questions' => 'false',
                     'hide_survey_reporting_button' => 'false',
-                    'allow_survey_availability_datetime' => 'false',
                     'survey_mark_question_as_required' => 'false',
                     'survey_anonymous_show_answered' => 'false',
-                    'survey_question_dependency' => 'true',
                     'survey_allow_answered_question_edit' => 'false',
                     'survey_duplicate_order_by_name' => 'true',
                     'survey_backwards_enable' => 'false',
-                    'allow_mandatory_survey' => 'false',
                     'hide_survey_edition' => '',
                     'survey_additional_teacher_modify_actions' => '',
-                    'allow_survey_tool_in_lp' => 'false',
                     'show_surveys_base_in_sessions' => 'false',
                 ]
             )
@@ -59,16 +54,12 @@ class SurveySettingsSchema extends AbstractSettingsSchema
                 ]
             )
             ->add('extend_rights_for_coach_on_survey', YesNoType::class)
-            ->add('allow_required_survey_questions', YesNoType::class)
             ->add('hide_survey_reporting_button', YesNoType::class)
-            ->add('allow_survey_availability_datetime', YesNoType::class)
             ->add('survey_mark_question_as_required', YesNoType::class)
             ->add('survey_anonymous_show_answered', YesNoType::class)
-            ->add('survey_question_dependency', YesNoType::class)
             ->add('survey_allow_answered_question_edit', YesNoType::class)
             ->add('survey_duplicate_order_by_name', YesNoType::class)
             ->add('survey_backwards_enable', YesNoType::class)
-            ->add('allow_mandatory_survey', YesNoType::class)
             ->add(
                 'hide_survey_edition',
                 TextareaType::class,
@@ -87,7 +78,6 @@ class SurveySettingsSchema extends AbstractSettingsSchema
                         $this->settingArrayHelpValue('survey_additional_teacher_modify_actions'),
                 ]
             )
-            ->add('allow_survey_tool_in_lp', YesNoType::class)
             ->add('show_surveys_base_in_sessions', YesNoType::class)
         ;
 
diff --git a/src/CoreBundle/Settings/WebServiceSettingsSchema.php b/src/CoreBundle/Settings/WebServiceSettingsSchema.php
index 44bddc2813..b524326fb8 100644
--- a/src/CoreBundle/Settings/WebServiceSettingsSchema.php
+++ b/src/CoreBundle/Settings/WebServiceSettingsSchema.php
@@ -17,7 +17,6 @@ class WebServiceSettingsSchema extends AbstractSettingsSchema
         $builder
             ->setDefaults(
                 [
-                    'decode_utf8' => 'true',
                     'messaging_allow_send_push_notification' => 'false',
                     'messaging_gdc_project_number' => '',
                     'messaging_gdc_api_key' => '',
@@ -38,11 +37,9 @@ class WebServiceSettingsSchema extends AbstractSettingsSchema
     public function buildForm(FormBuilderInterface $builder): void
     {
         $builder
-            ->add('decode_utf8', YesNoType::class)
             ->add('messaging_allow_send_push_notification', YesNoType::class)
             ->add('messaging_gdc_project_number')
             ->add('messaging_gdc_api_key')
-            ->add('decode_utf8', YesNoType::class)
             ->add('allow_download_documents_by_api_key', YesNoType::class)
         ;
 
diff --git a/src/CourseBundle/Component/CourseCopy/CourseBuilder.php b/src/CourseBundle/Component/CourseCopy/CourseBuilder.php
index dec909a900..f80dcfc9bb 100644
--- a/src/CourseBundle/Component/CourseCopy/CourseBuilder.php
+++ b/src/CourseBundle/Component/CourseCopy/CourseBuilder.php
@@ -1184,10 +1184,8 @@ class CourseBuilder
         $db_result = Database::query($sql);
         $is_required = 0;
         while ($obj = Database::fetch_object($db_result)) {
-            if ('true' === api_get_setting('survey.allow_required_survey_questions')) {
-                if (isset($obj->is_required)) {
-                    $is_required = $obj->is_required;
-                }
+            if (isset($obj->is_required)) {
+                $is_required = $obj->is_required;
             }
             $question = new SurveyQuestion(
                 $obj->question_id,
diff --git a/src/CourseBundle/Component/CourseCopy/CourseRestorer.php b/src/CourseBundle/Component/CourseCopy/CourseRestorer.php
index 81f4e91b18..a9379dc78d 100644
--- a/src/CourseBundle/Component/CourseCopy/CourseRestorer.php
+++ b/src/CourseBundle/Component/CourseCopy/CourseRestorer.php
@@ -2591,10 +2591,8 @@ class CourseRestorer
                 'shared_question_id' => self::DBUTF8($question->shared_question_id),
                 'max_value' => self::DBUTF8($question->max_value),
             ];
-            if ('true' === api_get_setting('survey.allow_required_survey_questions')) {
-                if (isset($question->is_required)) {
-                    $params['is_required'] = $question->is_required;
-                }
+            if (isset($question->is_required)) {
+                $params['is_required'] = $question->is_required;
             }
 
             $new_id = Database::insert($table_que, $params);
diff --git a/src/CourseBundle/Component/CourseCopy/Resources/SurveyQuestion.php b/src/CourseBundle/Component/CourseCopy/Resources/SurveyQuestion.php
index aaab9c8b4e..8af859217e 100644
--- a/src/CourseBundle/Component/CourseCopy/Resources/SurveyQuestion.php
+++ b/src/CourseBundle/Component/CourseCopy/Resources/SurveyQuestion.php
@@ -87,9 +87,8 @@ class SurveyQuestion extends Resource
         $this->shared_question_id = $shared_question_id;
         $this->max_value = $max_value;
         $this->answers = [];
-        if ('true' === api_get_setting('survey.allow_required_survey_questions')) {
-            $this->is_required = $is_required;
-        }
+        $this->is_required = $is_required;
+
     }
 
     /**