diff --git a/scripts/upgrade b/scripts/upgrade
index 4043f0e..b5b1318 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -24,57 +24,6 @@ ynh_script_progression --message="Stopping a systemd service..." --weight=1
 
 ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
 
-#=================================================
-# ENSURE DOWNWARD COMPATIBILITY
-#=================================================
-ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
-
-#
-# N.B. : the followings setting migrations snippets are provided as *EXAMPLES*
-# of what you may want to do in some cases (e.g. a setting was not defined on
-# some legacy installs and you therefore want to initiaze stuff during upgrade)
-#
-
-# If db_name doesn't exist, create it
-#if [ -z "$db_name" ]; then
-#	db_name=$(ynh_sanitize_dbid --db_name=$app)
-#REMOVEME? #	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
-#fi
-
-# If install_dir doesn't exist, create it
-#if [ -z "$install_dir" ]; then
-#	install_dir=/var/www/$app
-#REMOVEME? #	ynh_app_setting_set --app=$app --key=install_dir --value=$install_dir
-#fi
-
-### If nobody installed your app before 4.1,
-### then you may safely remove these lines
-
-# Cleaning legacy permissions
-#REMOVEME? if ynh_legacy_permissions_exists; then
-#REMOVEME? 	ynh_legacy_permissions_delete_all
-
-	ynh_app_setting_delete --app=$app --key=is_public
-fi
-
-#REMOVEME? if ! ynh_permission_exists --permission="admin"; then
-	# Create the required permissions
-#REMOVEME? 	ynh_permission_create --permission="admin" --url="/admin" --allowed=$admin
-fi
-
-# Create a permission if needed
-#REMOVEME? if ! ynh_permission_exists --permission="api"; then
-#REMOVEME? 	ynh_permission_create --permission="api" --url="/api" --allowed="visitors" --show_tile="false" --protected="true"
-fi
-
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-#REMOVEME? ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1
-
-# Create a dedicated user (if not existing)
-#REMOVEME? ynh_system_user_create --username=$app --home_dir="$install_dir"
-
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -98,16 +47,6 @@ ynh_script_progression --message="Upgrading NGINX web server configuration..." -
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# UPDATE A CONFIG FILE
-#=================================================
-#ynh_script_progression --message="Updating a configuration file..." --weight=1
-
-#ynh_add_config --template="some_config_file" --destination="$install_dir/some_config_file"
-
-#chmod 400 "$install_dir/some_config_file"
-#chown $app:$app "$install_dir/some_config_file"
-
 #=================================================
 # SETUP SYSTEMD
 #=================================================