diff --git a/check_process b/check_process
index 67035eb..f10ca2f 100644
--- a/check_process
+++ b/check_process
@@ -1,9 +1,9 @@
 ;; General
     ; Manifest
-        domain="domain.tld" (DOMAIN)
-        path="/path"	    (PATH)
-        admin="john"        (USER)
-        is_public=1         (PUBLIC|public=1|private=0)
+        domain="domain.tld"
+        path="/path"
+        admin="john"
+        is_public=1
     ; Checks
         pkg_linter=1
         setup_sub_dir=1
diff --git a/manifest.json b/manifest.json
index 8c75d13..db9ffaf 100644
--- a/manifest.json
+++ b/manifest.json
@@ -23,7 +23,7 @@
         "mysql"
     ],
     "requirements": {
-        "yunohost": ">= 4.1.7"
+        "yunohost": ">= 4.2.4"
     },
     "arguments": {
         "install" : [
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 624dae9..b04dd7b 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -45,8 +45,8 @@ config_gogs() {
     fi
 
     ynh_replace_string "__REPOS_PATH__" "$REPO_PATH" "$final_path/custom/conf/app.ini"
-    ynh_replace_string "__DB_PWD__" "$dbpass" "$final_path/custom/conf/app.ini"
-    ynh_replace_string "__DB_NAME__" "$dbuser" "$final_path/custom/conf/app.ini"
+    ynh_replace_string "__DB_PWD__" "$db_pwd" "$final_path/custom/conf/app.ini"
+    ynh_replace_string "__DB_NAME__" "$db_name" "$final_path/custom/conf/app.ini"
     ynh_replace_string "__DOMAIN__" "$domain" "$final_path/custom/conf/app.ini"
     ynh_replace_string "__KEY__" "$key" "$final_path/custom/conf/app.ini"
     ynh_replace_string "__DATA_PATH__" "$DATA_PATH" "$final_path/custom/conf/app.ini"
@@ -75,9 +75,9 @@ set_permission() {
 }
 
 set_access_settings() {
-    if [ "$is_public" = '1' ]
+    if [ $is_public -eq 1 ]
     then
-        ynh_app_setting_set $app unprotected_uris "/"
+        ynh_permission_update --permission="main" --add="visitors"
     else
         # For an access to the git server by https in private mode we need to allow the access to theses URL :
         #  - "DOMAIN/PATH/USER/REPOSITORY/info/refs"
diff --git a/scripts/install b/scripts/install
index 6cabfed..077d7fe 100644
--- a/scripts/install
+++ b/scripts/install
@@ -203,11 +203,13 @@ ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$ap
 #=================================================
 ynh_script_progression --message="Configuring SSOwat..." --weight=1
 
-# Make app public if necessary or protect it
-if [ $is_public -eq 1 ]
-then
-	ynh_permission_update --permission="main" --add="visitors"
-fi
+set_access_settings
+
+# # Make app public if necessary or protect it
+# if [ $is_public -eq 1 ]
+# then
+# 	ynh_permission_update --permission="main" --add="visitors"
+# fi
 
 #=================================================
 # RELOAD NGINX
diff --git a/scripts/upgrade b/scripts/upgrade
index 32c4383..75b7251 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -34,6 +34,18 @@ architecture=$(ynh_detect_arch)
 
 upgrade_type=$(ynh_check_app_version_changed)
 
+#=================================================
+# ENSURE DOWNWARD COMPATIBILITY
+#=================================================
+ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
+
+# 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
 #=================================================