diff --git a/scripts/upgrade b/scripts/upgrade
index 44c8690..9bdc659 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -19,7 +19,7 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 #admin=$(ynh_app_setting_get --app=$app --key=admin)
-is_public=$(ynh_app_setting_get --app=$app --key=is_public)
+#is_public=$(ynh_app_setting_get --app=$app --key=is_public)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 #language=$(ynh_app_setting_get --app=$app --key=language)
 #db_name=$(ynh_app_setting_get --app=$app --key=db_name)
@@ -42,12 +42,19 @@ upgrade_type=$(ynh_check_app_version_changed)
 ynh_script_progression --message="Ensuring downward compatibility..." --time --weight=1
 
 # Fix is_public as a boolean value
-if [ "$is_public" = "Yes" ]; then
-	ynh_app_setting_set --app=$app --key=is_public --value=1
-	is_public=1
-elif [ "$is_public" = "No" ]; then
-	ynh_app_setting_set --app=$app --key=is_public --value=0
-	is_public=0
+#if [ "$is_public" = "Yes" ]; then
+#	ynh_app_setting_set --app=$app --key=is_public --value=1
+#	is_public=1
+#elif [ "$is_public" = "No" ]; then
+#	ynh_app_setting_set --app=$app --key=is_public --value=0
+#	is_public=0
+#fi
+
+# Cleaning legacy permissions
+if ynh_legacy_permissions_exists; then
+	ynh_legacy_permissions_delete_all
+
+	ynh_app_setting_delete --app=$app --key=is_public
 fi
 
 # If db_name doesn't exist, create it
@@ -86,7 +93,7 @@ ynh_abort_if_errors
 # instead of /foo ....
 # If nobody installed your app before 2.7, then you may
 # safely remove this line
-path_url=$(ynh_normalize_url_path --path_url=$path_url)
+#path_url=$(ynh_normalize_url_path --path_url=$path_url)
 
 #=================================================
 # STANDARD UPGRADE STEPS
@@ -112,7 +119,7 @@ fi
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
-ynh_script_progression --message="Upgrading nginx web server configuration..." --time --weight=1
+ynh_script_progression --message="Upgrading NGINX web server configuration..." --time --weight=1
 
 # Create a dedicated nginx config
 ynh_add_nginx_config
@@ -135,7 +142,7 @@ ynh_system_user_create --username=$app
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
-ynh_script_progression --message="Upgrading php-fpm configuration..." --time --weight=1
+ynh_script_progression --message="Upgrading PHP-FPM configuration..." --time --weight=1
 
 # Create a dedicated php-fpm config
 ynh_add_fpm_config
@@ -192,14 +199,14 @@ chown -R $app: $final_path
 #=================================================
 # SETUP SSOWAT
 #=================================================
-ynh_script_progression --message="Upgrading SSOwat configuration..." --time --weight=1
+#ynh_script_progression --message="Upgrading SSOwat configuration..." --time --weight=1
 
 # Make app public if necessary
-if [ $is_public -eq 1 ]
-then
+#if [ $is_public -eq 1 ]
+#then
 	# unprotected_uris allows SSO credentials to be passed anyway
-	ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
-fi
+	#ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
+#fi
 
 #=================================================
 # START SYSTEMD SERVICE
@@ -211,7 +218,7 @@ fi
 #=================================================
 # RELOAD NGINX
 #=================================================
-ynh_script_progression --message="Reloading nginx web server..." --time --weight=1
+ynh_script_progression --message="Reloading NGINX web server..." --time --weight=1
 
 ynh_systemd_action --service_name=nginx --action=reload