diff --git a/README.md b/README.md
index 741c7c1..bc22aee 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # EtherCalc for YunoHost
 
 [![Integration level](https://dash.yunohost.org/integration/ethercalc.svg)](https://dash.yunohost.org/appci/app/ethercalc) ![](https://ci-apps.yunohost.org/ci/badges/ethercalc.status.svg) ![](https://ci-apps.yunohost.org/ci/badges/ethercalc.maintain.svg)  
-[![Install EtherCalc with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=ethercalc)
+[![Install EtherCalc with YunoHost](https://install-app.yunohost.org/install-with-yunohost.svg)](https://install-app.yunohost.org/?app=ethercalc)
 
 > *This package allow you to install EtherCalc 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.*
@@ -35,8 +35,8 @@ N/A.
 
 #### Supported architectures
 
-* x86-64 - [![Build Status](https://ci-apps.yunohost.org/ci/logs/ethercalc%20%28Apps%29.svg)](https://ci-apps.yunohost.org/ci/apps/ethercalc/)
-* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/ethercalc%20%28Apps%29.svg)](https://ci-apps-arm.yunohost.org/ci/apps/ethercalc/)
+* x86-64 - [![Build Status](https://ci-apps.yunohost.org/ci/logs/ethercalc.svg)](https://ci-apps.yunohost.org/ci/apps/ethercalc/)
+* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/ethercalc.svg)](https://ci-apps-arm.yunohost.org/ci/apps/ethercalc/)
 
 ## Limitations
 
diff --git a/check_process b/check_process
index 576e968..b911931 100644
--- a/check_process
+++ b/check_process
@@ -18,8 +18,6 @@
 		multi_instance=1
 		port_already_use=1
 		change_url=1
-;;; Levels
-	Level 5=auto
 ;;; Options
 Email=
 Notification=none
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 258953c..c1846d3 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,4 +1,5 @@
 location ^~ / {
+
   # Force usage of https
   if ($scheme = http) {
     rewrite ^ https://$server_name$request_uri? permanent;
diff --git a/manifest.json b/manifest.json
index 69e966e..8bee975 100644
--- a/manifest.json
+++ b/manifest.json
@@ -16,7 +16,7 @@
     },
     "multi_instance": true,
     "requirements": {
-        "yunohost": ">= 4.0.0"
+        "yunohost": ">= 4.1.7"
     },
     "services": [
         "nginx"
@@ -26,29 +26,17 @@
             {
                 "name": "domain",
                 "type": "domain",
-                "ask": {
-                    "en": "Choose a domain for EtherCalc",
-                    "fr": "Choisissez un domaine pour EterCalc"
-                },
                 "example": "domain.org"
             },
                         {
                 "name": "path",
                 "type": "path",
-                "ask": {
-                    "en": "Choose a path for EtherCalc",
-                    "fr": "Choisissez un chemin pour EtherCalc"
-                },
                 "example": "/",
                 "default": "/"
             },
             {
                 "name": "is_public",
                 "type": "boolean",
-                "ask": {
-                    "en": "Is it a public application?",
-                    "fr": "Est-ce une application publique ?"
-                },
                 "default": true
             },
             {
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 93deb4f..d493113 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -6,7 +6,7 @@
 
 pkg_dependencies="redis-server redis-tools"
 
-nodejs_version=12
+nodejs_version=14
 
 #=================================================
 # PERSONAL HELPERS
diff --git a/scripts/change_url b/scripts/change_url
index 2a179bf..035dfd2 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -17,7 +17,7 @@ old_domain=$YNH_APP_OLD_DOMAIN
 old_path=$YNH_APP_OLD_PATH
 
 new_domain=$YNH_APP_NEW_DOMAIN
-new_path=$YNH_APP_NEW_PATH
+new_path="/"
 
 app=$YNH_APP_INSTANCE_NAME
 
diff --git a/scripts/install b/scripts/install
index 16f9650..0331674 100644
--- a/scripts/install
+++ b/scripts/install
@@ -47,7 +47,6 @@ ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
 
 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
 ynh_app_setting_set --app=$app --key=expire --value=$expire
 
 #=================================================
@@ -146,9 +145,7 @@ ynh_script_progression --message="Configuring SSOwat..." --weight=1
 # Make app public if necessary or protect it
 if [ $is_public -eq 1 ]
 then
-	# Everyone can access the app.
-	# The "main" permission is automatically created before the install script.
-	ynh_permission_update --permission "main" --add "visitors"
+	ynh_permission_update --permission="main" --add="visitors"
 fi
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 975d93c..c4f037d 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -54,14 +54,14 @@ ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
-ynh_script_progression --message="Restoring the app main directory..." --time --weight=1
+ynh_script_progression --message="Restoring the app main directory..." --weight=1
 
 ynh_restore_file --origin_path="$final_path"
 
 #=================================================
 # RECREATE THE DEDICATED USER
 #=================================================
-ynh_script_progression --message="Recreating the dedicated system user..." --time --weight=1
+ynh_script_progression --message="Recreating the dedicated system user..." --weight=1
 
 # Create the dedicated user (if not existing)
 ynh_system_user_create --username=$app
@@ -78,7 +78,7 @@ chown -R root: $final_path
 #=================================================
 # REINSTALL DEPENDENCIES
 #=================================================
-ynh_script_progression --message="Reinstalling dependencies..." --time --weight=1
+ynh_script_progression --message="Reinstalling dependencies..." --weight=1
 
 # Define and install dependencies
 ynh_install_app_dependencies $pkg_dependencies
@@ -89,7 +89,7 @@ ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
 #=================================================
 # RESTORE SYSTEMD
 #=================================================
-ynh_script_progression --message="Restoring the systemd configuration..." --time --weight=1
+ynh_script_progression --message="Restoring the systemd configuration..." --weight=1
 
 ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
 systemctl enable $app.service
@@ -97,14 +97,14 @@ systemctl enable $app.service
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST
 #=================================================
-ynh_script_progression --message="Integrating service in YunoHost..." --time --weight=1
+ynh_script_progression --message="Integrating service in YunoHost..." --weight=1
 
 yunohost service add $app --description "A short description of the app" --log "/var/log/$app/$app.log"
 
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
-ynh_script_progression --message="Starting a systemd service..." --time --weight=1
+ynh_script_progression --message="Starting a systemd service..." --weight=1
 
 ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"
 
@@ -113,7 +113,7 @@ ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$ap
 #=================================================
 # RELOAD NGINX AND PHP-FPM
 #=================================================
-ynh_script_progression --message="Reloading nginx web server..." --time --weight=1
+ynh_script_progression --message="Reloading nginx web server..." --weight=1
 
 ynh_systemd_action --service_name=nginx --action=reload
 
@@ -121,4 +121,4 @@ ynh_systemd_action --service_name=nginx --action=reload
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Restoration completed for $app" --time --last
+ynh_script_progression --message="Restoration completed for $app" --last
diff --git a/scripts/upgrade b/scripts/upgrade
index 5c7a580..439be75 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -18,7 +18,6 @@ app=$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)
 
 #=================================================
@@ -32,21 +31,19 @@ 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 final_path doesn't exist, create it
 if [ -z "$final_path" ]; then
 	final_path=/var/www/$app
 	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
 #=================================================