diff --git a/check_process b/check_process
index 1786d8e..5ea1043 100644
--- a/check_process
+++ b/check_process
@@ -17,7 +17,12 @@
 		setup_private=1
 		setup_public=1
 		upgrade=1
-		upgrade=1	from_commit=280ba0d4a9ebb9d8948e0db97200dbcb89b6c323
+		# 1.3.1
+		upgrade=1	from_commit=22ca62492ce32d22ac710758bca4e3be0534566c
+		# 1.4.1
+		upgrade=1	from_commit=33620aacc6f6e2ac003ae6bd2de57dc5d74a5343
+		# 2.0.0
+		upgrade=1	from_commit=032acd21b36030c9c1680d882d54c8011439e83c
 		backup_restore=1
 		multi_instance=1
 		# This test is no longer necessary since the version 2.7 (PR: https://github.com/YunoHost/yunohost/pull/304), you can still do it if your app could be installed with this version.
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 13aecb8..3531e4e 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,121 +1,117 @@
-	# Bypass PeerTube for performance reasons. Could be removed
-	location ~ ^/client/(.*\.(js|css|woff2|otf|ttf|woff|eot))$ {
-    add_header Cache-Control "public, max-age=31536000, immutable";
+# Bypass PeerTube for performance reasons. Could be removed
+location ~ ^/client/(.*\.(js|css|woff2|otf|ttf|woff|eot))$ {
+  add_header Cache-Control "public, max-age=31536000, immutable";
 
-    alias __FINALPATH__/client/dist/$1;
-    }
-   # Bypass PeerTube for performance reasons. Could be removed
-   location ~ ^/static/(thumbnails|avatars)/ {
-    if ($request_method = 'OPTIONS') {
-      add_header 'Access-Control-Allow-Origin' '*';
-      add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
-      add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
-      add_header 'Access-Control-Max-Age' 1728000;
-      add_header 'Content-Type' 'text/plain charset=UTF-8';
-      add_header 'Content-Length' 0;
-      return 204;
-    }
+  alias __FINALPATH__/client/dist/$1;
+}
 
+# Bypass PeerTube for performance reasons. Could be removed
+location ~ ^/static/(thumbnails|avatars)/ {
+  if ($request_method = 'OPTIONS') {
+    add_header 'Access-Control-Allow-Origin' '*';
+    add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
+    add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
+    add_header 'Access-Control-Max-Age' 1728000;
+    add_header 'Content-Type' 'text/plain charset=UTF-8';
+    add_header 'Content-Length' 0;
+    return 204;
+  }
+
+  add_header 'Access-Control-Allow-Origin' '*';
+  add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
+  add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
+
+  # Cache 2 hours
+  add_header Cache-Control "public, max-age=7200";
+
+  root /home/yunohost.app/__NAME__/storage;
+
+  rewrite ^/static/(thumbnails|avatars)/(.*)$ /$1/$2 break;
+  try_files $uri /;
+}
+
+location / {
+  if ($scheme = http) {
+    rewrite ^ https://$server_name$request_uri? permanent;
+  }
+  proxy_pass http://localhost:__PORT__;
+  proxy_set_header X-Real-IP $remote_addr;
+  proxy_set_header Host $host;
+  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+
+  # This is the maximum upload size, which roughly matches the maximum size of a video file
+  # you can send via the API or the web interface. By default this is 8GB, but administrators
+  # can increase or decrease the limit. Currently there's no way to communicate this limit
+  # to users automatically, so you may want to leave a note in your instance 'about' page if
+  # you change this.
+  #
+  # Note that temporary space is needed equal to the total size of all concurrent uploads.
+  # This data gets stored in /var/lib/nginx by default, so you may want to put this directory
+  # on a dedicated filesystem.
+  #
+  client_max_body_size 8G;
+  proxy_connect_timeout       600;
+  proxy_send_timeout          600;
+  proxy_read_timeout          600;
+  send_timeout                600;
+
+  # Include SSOWAT user panel.
+  include conf.d/yunohost_panel.conf.inc;
+}
+
+# Bypass PeerTube for performance reasons. Could be removed
+location ~ ^/static/(webseed|redundancy)/ {
+  # Clients usually have 4 simultaneous webseed connections, so the real limit is 3MB/s per client
+  limit_rate 800k;
+
+  if ($request_method = 'OPTIONS') {
+    add_header 'Access-Control-Allow-Origin' '*';
+    add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
+    add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
+    add_header 'Access-Control-Max-Age' 1728000;
+    add_header 'Content-Type' 'text/plain charset=UTF-8';
+    add_header 'Content-Length' 0;
+    return 204;
+  }
+
+  if ($request_method = 'GET') {
     add_header 'Access-Control-Allow-Origin' '*';
     add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
     add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
 
-    # Cache 2 hours
-    add_header Cache-Control "public, max-age=7200";
-
-    root /home/yunohost.app/__NAME__/storage;
-
-    rewrite ^/static/(thumbnails|avatars)/(.*)$ /$1/$2 break;
-    try_files $uri /;
-  }
-  
-	location / {
-     if ($scheme = http) {
-        rewrite ^ https://$server_name$request_uri? permanent;
-      }
-    proxy_pass http://localhost:__PORT__;
-    proxy_set_header X-Real-IP $remote_addr;
-    proxy_set_header Host $host;
-    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-    
-    # This is the maximum upload size, which roughly matches the maximum size of a video file
-    # you can send via the API or the web interface. By default this is 8GB, but administrators
-    # can increase or decrease the limit. Currently there's no way to communicate this limit
-    # to users automatically, so you may want to leave a note in your instance 'about' page if
-    # you change this.
-    #
-    # Note that temporary space is needed equal to the total size of all concurrent uploads.
-    # This data gets stored in /var/lib/nginx by default, so you may want to put this directory
-    # on a dedicated filesystem.
-    #
-    client_max_body_size 8G;
-    proxy_connect_timeout       600;
-    proxy_send_timeout          600;
-    proxy_read_timeout          600;
-    send_timeout                600;
-    
-  # Include SSOWAT user panel.
-  include conf.d/yunohost_panel.conf.inc;
+    # Don't spam access log file with byte range requests
+    access_log off;
   }
 
-	# Bypass PeerTube for performance reasons. Could be removed
-	location ~ ^/static/(webseed|redundancy)/ {
-    # Clients usually have 4 simultaneous webseed connections, so the real limit is 3MB/s per client
-    limit_rate 800k;
+  root /home/yunohost.app/__NAME__/storage;
 
-    if ($request_method = 'OPTIONS') {
-      add_header 'Access-Control-Allow-Origin' '*';
-      add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
-      add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
-      add_header 'Access-Control-Max-Age' 1728000;
-      add_header 'Content-Type' 'text/plain charset=UTF-8';
-      add_header 'Content-Length' 0;
-      return 204;
-    }
+  rewrite ^/static/webseed/(.*)$ /videos/$1 break;
+  rewrite ^/static/redundancy/(.*)$ /redundancy/$1 break;
 
-    if ($request_method = 'GET') {
-      add_header 'Access-Control-Allow-Origin' '*';
-      add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
-      add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
+  try_files $uri /;
+}
 
-      # Don't spam access log file with byte range requests
-      access_log off;
-    }
-
-    root /home/yunohost.app/__NAME__/storage;
-
-    rewrite ^/static/webseed/(.*)$ /videos/$1 break;
-    rewrite ^/static/redundancy/(.*)$ /redundancy/$1 break;
-
-    try_files $uri /;
-    
-   
-  }
-
-  # Websocket tracker
-  location /tracker/socket {
-    # Peers send a message to the tracker every 15 minutes
-    # Don't close the websocket before this time
-    proxy_read_timeout 1200s;
-    proxy_set_header Upgrade $http_upgrade;
-    proxy_set_header Connection "upgrade";
-    proxy_http_version 1.1;
-    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-    proxy_set_header Host $host;
-    proxy_pass http://localhost:__PORT__;
-  }
+# Websocket tracker
+location /tracker/socket {
+  # Peers send a message to the tracker every 15 minutes
+  # Don't close the websocket before this time
+  proxy_read_timeout 1200s;
+  proxy_set_header Upgrade $http_upgrade;
+  proxy_set_header Connection "upgrade";
+  proxy_http_version 1.1;
+  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+  proxy_set_header Host $host;
+  proxy_pass http://localhost:__PORT__;
+}
 
 location /socket.io {
-    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-    proxy_set_header Host $host;
-
-    proxy_pass http://localhost:__PORT__;
-
-    # enable WebSockets
-    proxy_http_version 1.1;
-    proxy_set_header Upgrade $http_upgrade;
-    proxy_set_header Connection "upgrade";
-  }
-
+  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+  proxy_set_header Host $host;
 
+  proxy_pass http://localhost:__PORT__;
 
+  # enable WebSockets
+  proxy_http_version 1.1;
+  proxy_set_header Upgrade $http_upgrade;
+  proxy_set_header Connection "upgrade";
+}
diff --git a/scripts/backup b/scripts/backup
index 40f3993..a708505 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -13,6 +13,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 # MANAGE SCRIPT FAILURE
 #=================================================
+ynh_print_info --message="Managing script failure..."
 
 ynh_clean_setup () {
 	ynh_clean_check_starting
@@ -38,7 +39,7 @@ db_name=$(ynh_app_setting_get --app=$app --key=psql_db)
 #=================================================
 ynh_print_info --message="Stopping a systemd service..."
 
-ynh_systemd_action --service_name=$app --action="stop"
+ynh_systemd_action --service_name=$app --action="stop" --log_path="systemd"
 
 #=================================================
 # BACKUP THE APP MAIN DIR
diff --git a/scripts/install b/scripts/install
index 33fdbf1..ad82268 100644
--- a/scripts/install
+++ b/scripts/install
@@ -14,6 +14,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 # MANAGE SCRIPT FAILURE
 #=================================================
+ynh_print_info --message="Managing script failure..."
 
 ynh_clean_setup () {
 	ynh_clean_check_starting
@@ -24,6 +25,7 @@ ynh_abort_if_errors
 #=================================================
 # RETRIEVE ARGUMENTS FROM THE MANIFEST
 #=================================================
+ynh_print_info --message="Retrieving arguments from the manifest..."
 
 domain=$YNH_APP_ARG_DOMAIN
 path_url="/"
@@ -61,7 +63,7 @@ ynh_app_setting_set --app=$app --key=is_public --value=$is_public
 #=================================================
 ynh_print_info --message="Configuring firewall..."
 
-# Find a free port
+# Find an available port
 port=$(ynh_find_port --port=9000)
 ynh_app_setting_set --app=$app --key=port --value=$port
 
@@ -132,7 +134,7 @@ ynh_system_user_create --username=$app --home_dir=$final_path
 #=================================================
 # CREATE THE DATA DIRECTORY
 #=================================================
-ynh_print_info --message="Create the data directory..."
+ynh_print_info --message="Creating the data directory..."
 
 # Define app's data directory
 datadir="/home/yunohost.app/${app}/storage"
@@ -146,6 +148,7 @@ chown -R "$app":"$app" "$datadir"
 #=================================================
 # MODIFY A CONFIG FILE
 #=================================================
+ynh_print_info --message="Modifying a config file..."
 
 cp ../conf/production.yaml "$final_path/config/production.yaml"
 ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$final_path/config/production.yaml"
@@ -161,6 +164,7 @@ cp ../conf/local-production.json "$final_path/config/local-production.json"
 #=================================================
 # FIX NGINX DOMAIN CONFIGURATION
 #=================================================
+ynh_print_info --message="Fixing nginx domain configuration..."
 
 cp -R ../conf/nginx_regen_conf.hook /usr/share/yunohost/hooks/conf_regen/15-nginx_$app
 ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="/usr/share/yunohost/hooks/conf_regen/15-nginx_$app"
@@ -169,6 +173,7 @@ yunohost tools regen-conf nginx
 #=================================================
 # STORE THE CHECKSUM OF THE CONFIG FILE
 #=================================================
+ynh_print_info --message="Storing the config file checksum..."
 
 # Calculate and store the config file checksum into the app settings
 ynh_store_file_checksum --file="$final_path/config/production.yaml"
@@ -177,6 +182,7 @@ ynh_store_file_checksum --file="$final_path/config/local-production.json"
 #=================================================
 # BUILD YARN DEPENDENCIES
 #=================================================
+ynh_print_info --message="Building yarn dependencies..."
 
 chown -R "$app":"$app" $final_path
 
@@ -188,6 +194,7 @@ popd
 #=================================================
 # SETUP SYSTEMD
 #=================================================
+ynh_print_info --message="Configuring a systemd service..."
 
 ynh_replace_string --match_string="__ENV_PATH__" --replace_string="$PATH" --target_file="../conf/systemd.service"
 # Create a dedicated systemd config
@@ -198,6 +205,7 @@ ynh_add_systemd_config
 #=================================================
 # SECURE FILES AND DIRECTORIES
 #=================================================
+ynh_print_info --message="Securing files and directories..."
 
 # Set permissions to app files
 chown -R "$app":"$app" $final_path
@@ -211,10 +219,10 @@ ynh_print_info --message="Configuring log rotation..."
 ynh_use_logrotate --logfile="/home/yunohost.app/${app}/storage/logs/peertube.log"
 
 #=================================================
-# ADVERTISE SERVICE IN ADMIN PANEL
+# INTEGRATE SERVICE IN YUNOHOST
 #=================================================
+ynh_print_info --message="Integrating service in YunoHost..."
 
-# if using yunohost version 3.2 or more in the 'manifest.json', a description can be added
 yunohost service add $app --description "$app daemon for Peertube" --log "/home/yunohost.app/${app}/storage/logs/peertube.log"
 
 #=================================================
@@ -222,6 +230,7 @@ yunohost service add $app --description "$app daemon for Peertube" --log "/home/
 #=================================================
 ynh_print_info --message="Starting a systemd service..."
 
+# Start a systemd service
 #ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --line_match="Server listening on localhost"
 
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index df5dca4..3f3420e 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -27,11 +27,12 @@ admin_email=$(ynh_app_setting_get --app=$app --key=admin_email)
 #=================================================
 # STANDARD REMOVE
 #=================================================
-# REMOVE SERVICE FROM ADMIN PANEL
+# REMOVE SERVICE INTEGRATION IN YUNOHOST
 #=================================================
+ynh_print_info --message="Removing service integration in YunoHost..."
 
-# Remove a service from the admin panel, added by `yunohost service add`
-if ynh_exec_warn_less yunohost service status $app >/dev/null 2>&1
+# Remove the service from the list of services known by Yunohost (added from `yunohost service add`)
+if ynh_exec_warn_less yunohost service status $app >/dev/null
 then
 	ynh_print_info --message="Removing $app service..."
 	yunohost service remove $app
@@ -89,6 +90,7 @@ ynh_remove_logrotate
 #=================================================
 # CLOSE A PORT
 #=================================================
+ynh_print_info --message="Closing a port..."
 
 if yunohost firewall list | grep -q "\- $port$"
 then
@@ -101,6 +103,7 @@ fi
 #=================================================
 # RESTORE ORIGINAL NGINX DOMAIN CONFIGURATION
 #=================================================
+ynh_print_info --message="Restoring original nginx domain configuration..."
 
 ynh_secure_remove --file="/usr/share/yunohost/hooks/conf_regen/15-nginx_$app"
 yunohost tools regen-conf nginx
diff --git a/scripts/restore b/scripts/restore
index 927db52..d60859a 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -13,6 +13,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 # MANAGE SCRIPT FAILURE
 #=================================================
+ynh_print_info --message="Managing script failure..."
 
 ynh_clean_setup () {
 	ynh_clean_check_starting
@@ -50,6 +51,7 @@ test ! -d $final_path \
 #=================================================
 # RESTORE THE NGINX CONFIGURATION
 #=================================================
+ynh_print_info --message="Restoring the nginx configuration..."
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
@@ -71,6 +73,7 @@ ynh_system_user_create --username=$app --home_dir=$final_path
 #=================================================
 # RESTORE USER RIGHTS
 #=================================================
+ynh_print_info --message="Restoring user rights..."
 
 # Set right permissions
 if [ ! -d "/home/yunohost.app/$app" ]; then
@@ -104,6 +107,7 @@ ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ st
 #=================================================
 # FIX NGINX DOMAIN CONFIGURATION
 #=================================================
+ynh_print_info --message="Fixing nginx domain configuration..."
 
 ynh_restore_file --origin_path="/usr/share/yunohost/hooks/conf_regen/15-nginx_$app"
 yunohost tools regen-conf nginx
@@ -126,8 +130,9 @@ ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
 systemctl enable $app.service
 
 #=================================================
-# ADVERTISE SERVICE IN ADMIN PANEL
+# INTEGRATE SERVICE IN YUNOHOST
 #=================================================
+ynh_print_info --message="Integrating service in YunoHost..."
 
 yunohost service add $app --description "$app daemon for Peertube" --log "/home/yunohost.app/${app}/storage/logs/peertube.log"
 
@@ -141,6 +146,7 @@ ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --l
 #=================================================
 # RESTORE THE LOGROTATE CONFIGURATION
 #=================================================
+ynh_print_info --message="Restoring the logrotate configuration..."
 
 ynh_restore_file --origin_path="/etc/logrotate.d/$app"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index ba86b5c..cee5bc0 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -29,6 +29,7 @@ db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
 #=================================================
 # CHECK VERSION
 #=================================================
+ynh_print_info --message="Checking version..."
 
 upgrade_type=$(ynh_check_app_version_changed)
 
@@ -88,7 +89,7 @@ ynh_abort_if_errors
 #=================================================
 ynh_print_info --message="Stopping a systemd service..."
 
-ynh_systemd_action --service_name=$app --action="stop"
+ynh_systemd_action --service_name=$app --action="stop" --log_path="systemd"
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
@@ -102,8 +103,11 @@ then
 	tmpdir="$(mktemp -d)"
 	
 	# Backup the config file in the temp dir
-	cp -a "$final_path/config/local-production.json" "$tmpdir/local-production.json"
 	cp -a "$final_path/config/production.yaml" "$tmpdir/production.yaml"
+	if [ -s "$final_path/config/local-production.json" ]
+	then
+		cp -a "$final_path/config/local-production.json" "$tmpdir/local-production.json"
+	fi
 	
 	# Remove the app directory securely
 	ynh_secure_remove --file="$final_path"
@@ -166,14 +170,15 @@ ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ st
 #=================================================
 ynh_print_info --message="Making sure dedicated system user exists..."
 
-# Create a system user
-ynh_system_user_create "$app"
+# Create a dedicated user (if not existing)
+ynh_system_user_create --username=$app
 
 #=================================================
 # SPECIFIC UPGRADE
 #=================================================
 # MODIFY A CONFIG FILE
 #=================================================
+ynh_print_info --message="Modifying a config file..."
 
 ynh_backup_if_checksum_is_different --file="$final_path/config/local-production.json"
 ynh_backup_if_checksum_is_different --file="$final_path/config/production.yaml"
@@ -193,6 +198,7 @@ ynh_store_file_checksum --file="$final_path/config/production.yaml"
 #=================================================
 # FIX NGINX DOMAIN CONFIGURATION
 #=================================================
+ynh_print_info --message="Fixing nginx domain configuration..."
 
 cp -R ../conf/nginx_regen_conf.hook /usr/share/yunohost/hooks/conf_regen/15-nginx_$app
 ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="/usr/share/yunohost/hooks/conf_regen/15-nginx_$app"
@@ -201,6 +207,7 @@ yunohost tools regen-conf nginx
 #=================================================
 # BUILD YARN DEPENDENCIES
 #=================================================
+ynh_print_info --message="Building yarn dependencies..."
 
 chown -R "$app":"$app" $final_path
 
@@ -231,6 +238,7 @@ ynh_add_systemd_config
 #=================================================
 # SECURE FILES AND DIRECTORIES
 #=================================================
+ynh_print_info --message="Securing files and directories..."
 
 # Set permissions on app files
 chown -R "$app":"$app" "$final_path"
@@ -251,7 +259,7 @@ fi
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
-ynh_print_info --message="Start $app service..."
+ynh_print_info --message="Starting a systemd service..."
 
 ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --line_match="Server listening on localhost"