diff --git a/README_fr.md b/README_fr.md
index 3d02aa6..275c065 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -1,7 +1,7 @@
 # Slingcode pour YunoHost
 
 [![Integration level](https://dash.yunohost.org/integration/slingcode.svg)](https://dash.yunohost.org/appci/app/slingcode) ![](https://ci-apps.yunohost.org/ci/badges/slingcode.status.svg) ![](https://ci-apps.yunohost.org/ci/badges/slingcode.maintain.svg)  
-[![Install Slingcode with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=slingcode)
+[![Install Slingcode with YunoHost](https://install-app.yunohost.org/install-with-yunohost.svg)](https://install-app.yunohost.org/?app=slingcode)
 
 *[Read this Slingcode in english.](./README.md)* 
 
diff --git a/check_process b/check_process
index 10452ad..3d0a95e 100644
--- a/check_process
+++ b/check_process
@@ -15,7 +15,6 @@
 		backup_restore=1
 		multi_instance=1
 		incorrect_path=1
-		port_already_use=0
 		change_url=1
 ;;; Options
 Email=
diff --git a/manifest.json b/manifest.json
index 98e720a..bd3a748 100644
--- a/manifest.json
+++ b/manifest.json
@@ -14,7 +14,7 @@
         "email": ""
     },
     "requirements": {
-        "yunohost": ">= 3.8.1"
+        "yunohost": ">= 4.1.7"
     },
     "multi_instance": true,
     "services": [
diff --git a/pull_request_template.md b/pull_request_template.md
index e0abf9d..6c28fc5 100644
--- a/pull_request_template.md
+++ b/pull_request_template.md
@@ -13,6 +13,4 @@
 
 ## Package_check results
 ---
-*If you have access to [App Continuous Integration for packagers](https://yunohost.org/#/packaging_apps_ci) you can provide a link to the package_check results like below, replacing '-NUM-' in this link by the PR number and USERNAME by your username on the ci-apps-dev. Or you provide a screenshot or a pastebin of the results*
-
-[![Build Status](https://ci-apps-dev.yunohost.org/jenkins/job/slingcode_ynh%20PR-NUM-%20(USERNAME)/badge/icon)](https://ci-apps-dev.yunohost.org/jenkins/job/slingcode_ynh%20PR-NUM-%20(USERNAME)/)  
+* An automatic package_check will be launch at https://ci-apps-dev.yunohost.org/, when you add a specific comment to your Pull Request: "!testme", "!gogogadgetoci" or "By the power of systemd, I invoke The Great App CI to test this Pull Request!"*
diff --git a/scripts/install b/scripts/install
index 20f60a2..d307674 100755
--- a/scripts/install
+++ b/scripts/install
@@ -45,7 +45,6 @@ ynh_script_progression --message="Storing installation settings..." --weight=2
 
 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
@@ -87,10 +86,10 @@ chown -R $app: $final_path
 #=================================================
 # SETUP SSOWAT
 #=================================================
-ynh_script_progression --message="Configuring SSOwat..." --weight=1
+ynh_script_progression --message="Configuring permissions..." --weight=1
 
 # Make app public if necessary or protect it
-[ $is_public -eq 0 ] || ynh_permission_update --permission "main" --add "visitors"
+[ $is_public -eq 0 ] || ynh_permission_update --permission="main" --add="visitors"
 
 #=================================================
 # RELOAD NGINX
diff --git a/scripts/upgrade b/scripts/upgrade
index d95dc5e..4a36960 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -17,7 +17,6 @@ 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)
 
 #=================================================
@@ -31,21 +30,19 @@ 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
 #=================================================