diff --git a/README.md b/README.md
index 0b2600a..d8d65b4 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 
 *[Lire ce readme en français.](./README_fr.md)*
 
-> *This package allow you to install anarchism quickly and simply on a YunoHost server.  
+> *This package allow you to install Anarchism quickly and simply on a YunoHost server.  
 If you don't have YunoHost, please see [here](https://yunohost.org/#/install) to know how to install and enjoy it.*
 
 ## Overview
@@ -34,8 +34,8 @@ This is an anarchist FAQ. Its aim is to present what anarchism really stands for
 
 #### Supported architectures
 
-* x86-64b - [![Build Status](https://ci-apps.yunohost.org/ci/logs/anarchism%20%28Apps%29.svg)](https://ci-apps.yunohost.org/ci/apps/anarchism/)
-* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/anarchism%20%28Apps%29.svg)](https://ci-apps-arm.yunohost.org/ci/apps/anarchism/)
+* x86-64b - [![Build Status](https://ci-apps.yunohost.org/ci/logs/anarchism.svg)](https://ci-apps.yunohost.org/ci/apps/anarchism/)
+* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/anarchism.svg)](https://ci-apps-arm.yunohost.org/ci/apps/anarchism/)
 
 ## Links
 
diff --git a/README_fr.md b/README_fr.md
index 013a5b2..1d89afa 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -34,8 +34,8 @@ Ceci est une FAQ anarchiste. Son objectif est de présenter ce que représente v
 
 #### Architectures supportées
 
-* x86-64 - [![Build Status](https://ci-apps.yunohost.org/ci/logs/anarchism%20%28Apps%29.svg)](https://ci-apps.yunohost.org/ci/apps/anarchism/)
-* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/anarchism%20%28Apps%29.svg)](https://ci-apps-arm.yunohost.org/ci/apps/anarchism/)
+* x86-64 - [![Build Status](https://ci-apps.yunohost.org/ci/logs/anarchism.svg)](https://ci-apps.yunohost.org/ci/apps/anarchism/)
+* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/anarchism.svg)](https://ci-apps-arm.yunohost.org/ci/apps/anarchism/)
 
 ## Liens
 
diff --git a/manifest.json b/manifest.json
index ab87fd1..fe8459f 100644
--- a/manifest.json
+++ b/manifest.json
@@ -14,7 +14,7 @@
         "email": "pierre@kayou.io"
     },
     "requirements": {
-        "yunohost": ">= 3.8.1"
+        "yunohost": ">= 4.1.7"
     },
     "multi_instance": true,
     "services": [
@@ -25,29 +25,17 @@
             {
                 "name": "domain",
                 "type": "domain",
-                "ask": {
-                    "en": "Choose a domain name for Anarchism",
-                    "fr": "Choisissez un nom de domaine pour Anarchism"
-                },
                 "example": "example.com"
             },
             {
                 "name": "path",
                 "type": "path",
-                "ask": {
-                    "en": "Choose a path for Anarchism",
-                    "fr": "Choisissez un chemin pour Anarchism"
-                },
                 "example": "/anarchism",
                 "default": "/anarchism"
             },
             {
                 "name": "is_public",
                 "type": "boolean",
-                "ask": {
-                    "en": "Is it a public application?",
-                    "fr": "Est-ce une application publique ?"
-                },
                 "help": {
                     "en": "If enabled, Anarchism will be accessible by people who do not have an account. This can be changed later via the webadmin.",
                     "fr": "Si cette case est cochée, Anarchism sera accessible aux personnes n’ayant pas de compte. Vous pourrez changer ceci plus tard via la webadmin."
diff --git a/scripts/change_url b/scripts/change_url
index df2740f..0f2e999 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -29,6 +29,23 @@ ynh_script_progression --message="Loading installation settings..." --weight=1
 # Needed for helper "ynh_add_nginx_config"
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 
+#=================================================
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backing up the app before changing its URL (may take a while)..." --time --weight=1
+
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+	# Remove the new domain config file, the remove script won't do it as it doesn't know yet its location.
+	ynh_secure_remove --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+
+	# Restore it if the upgrade fails
+	ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
 #=================================================
 # CHECK WHICH PARTS SHOULD BE CHANGED
 #=================================================
diff --git a/scripts/install b/scripts/install
index 1cdf864..7c8aa2e 100755
--- a/scripts/install
+++ b/scripts/install
@@ -48,7 +48,6 @@ ynh_script_progression --message="Storing installation settings..." --weight=1
 
 ynh_app_setting_set --app=$app --key=domain --value=$domain
 ynh_app_setting_set --app=$app --key=path --value=$path_url
-ynh_app_setting_set --app=$app --key=is_public --value=$is_public
 
 #=================================================
 # STANDARD MODIFICATIONS
diff --git a/scripts/upgrade b/scripts/upgrade
index 2466371..4dcf663 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -18,7 +18,6 @@ app=$YNH_APP_INSTANCE_NAME
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
-is_public=$(ynh_app_setting_get --app=$app --key=is_public)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 
 #=================================================
@@ -32,15 +31,6 @@ upgrade_type=$(ynh_check_app_version_changed)
 #=================================================
 ynh_script_progression --message="Ensuring downward compatibility..." --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
-fi
-
 # If this folder exists, delete the old version of anarchism, and replace it with the new way to installing it.
 if [ -d "/usr/share/doc/anarchism/html" ]; then
   ynh_remove_app_dependencies anarchism
@@ -54,6 +44,13 @@ if [ -z "$final_path" ]; then
 	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 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
+
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================