diff --git a/scripts/upgrade b/scripts/upgrade
index 0c258c1..81d3dfe 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -19,7 +19,6 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
-#language=$(ynh_app_setting_get --app=$app --key=language)
 
 #=================================================
 # CHECK VERSION
@@ -132,12 +131,6 @@ ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=1
 # Create a dedicated PHP-FPM config
 ynh_add_fpm_config
 
-#=================================================
-# SPECIFIC UPGRADE
-#=================================================
-# ...
-#=================================================
-
 #=================================================
 # SETUP SYSTEMD
 #=================================================
@@ -146,24 +139,6 @@ ynh_script_progression --message="Upgrading systemd configuration..." --weight=1
 # Create a dedicated systemd config
 ynh_add_systemd_config
 
-#=================================================
-# UPDATE A CONFIG FILE
-#=================================================
-
-### Same as during install
-###
-### The file will automatically be backed-up if it's found to be manually modified (because
-### ynh_add_config keeps track of the file's checksum)
-
-#ynh_add_config --template="some_config_file" --destination="$final_path/some_config_file"
-
-### For more complex cases where you want to replace stuff using regexes,
-### you shoud rely on ynh_replace_string (which is basically a wrapper for sed)
-### When doing so, you also need to manually call ynh_store_file_checksum
-###
-### ynh_replace_string --match_string="match_string" --replace_string="replace_string" --target_file="$final_path/some_config_file"
-### ynh_store_file_checksum --file="$final_path/some_config_file"
-
 #=================================================
 # GENERIC FINALIZATION
 #=================================================