diff --git a/README.md b/README.md
index 725c9ef..fa352a0 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 [![Status](https://img.shields.io/badge/status-testing-yellow.svg?style=flat)](https://github.com/YunoHost-Apps/mastodon_ynh/milestones)
 [![Dependencies](https://img.shields.io/badge/dependencies-includes-lightgrey.svg?style=flat)](https://github.com/YunoHost-Apps/mastodon_ynh#dependencies)
 [![GitHub license](https://img.shields.io/badge/license-GPLv3-blue.svg?style=flat)](https://raw.githubusercontent.com/YunoHost-Apps/mastodon_ynh/master/LICENSE)
-[![Yunohost version](https://img.shields.io/badge/yunohost-2.4.2_tested-orange.svg?style=flat)](https://github.com/YunoHost/yunohost)
+[![Yunohost version](https://img.shields.io/badge/yunohost-2.5.6_tested-orange.svg?style=flat)](https://github.com/YunoHost/yunohost)
 [![GitHub issues](https://img.shields.io/github/issues/YunoHost-Apps/mastodon_ynh.svg?style=flat)](https://github.com/YunoHost-Apps/mastodon_ynh/issues)
 
 :warning: Cette application utilise les packages backports de Debian, nous vous recommendons de ne pas installer cette application directement en production
@@ -82,13 +82,3 @@ The admin user is automatically created as: user@domain.tld
 You can't install Mastodon in subdirectory, you must use a domain or subdomain for this application.
 
 It seems important to close the inscriptions for your Mastodon, so that it remains a private body. We invite you to block remote malicious instances from the administration interface. You can also add text on your home page.
-
-## TODO
-
-- [x] Fix upgrade
-- [x] [Create automatic user](https://github.com/tootsuite/documentation/blob/master/Running-Mastodon/Administration-guide.md#creating-users-while-registration-is-closed)
-- [x] Fix restore
-- [x] Install from a release
-- [x] Tune [Create automatic user](https://github.com/tootsuite/documentation/blob/master/Running-Mastodon/Administration-guide.md#creating-users-while-registration-is-closed)
-- [x] Change SMTP settings
-- [ ] Fix errors on jenkins
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 0d48dc5..85f883c 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,6 +1,9 @@
 # upload max size
 client_max_body_size 100M;
 
+# add to v1.4 assets
+root /opt/mastodon/live/public;
+
 location / {
 
 	if ($scheme = http) {
@@ -13,6 +16,12 @@ location / {
 	include conf.d/yunohost_panel.conf.inc;
 }
 
+# add to v1.4 assets
+location ~ ^/(assets|system/media_attachments/files|system/accounts/avatars) {
+    add_header Cache-Control "public, max-age=31536000, immutable";
+    try_files $uri @proxy;
+  }
+
 location @proxy {
 	proxy_set_header Host $host;
 	proxy_set_header X-Real-IP $remote_addr;
diff --git a/scripts/install b/scripts/install
index 0c71505..1634c52 100644
--- a/scripts/install
+++ b/scripts/install
@@ -41,7 +41,7 @@ ynh_app_setting_set $app language $language
 sudo adduser $app --home /opt/$app --gecos "First Last,RoomNumber,WorkPhone,HomePhone" --disabled-password --disabled-login
 
 # Install debian package
-ynh_package_install imagemagick libpq-dev libxml2-dev libxslt1-dev file curl apt-transport-https
+ynh_package_install imagemagick libpq-dev libxml2-dev libxslt1-dev file curl apt-transport-https pkg-config libprotobuf-dev protobuf-compiler
 
 # Install redis package
 ynh_package_install redis-server redis-tools
@@ -66,7 +66,7 @@ ynh_app_setting_set $app final_path $final_path
 
 # Install de Node.js
 pushd /opt
-curl -sL https://deb.nodesource.com/setup_4.x | sudo bash -
+curl -sL https://deb.nodesource.com/setup_6.x | sudo bash -
 sudo apt-get -y install nodejs
 
 # Install Yarn
@@ -95,9 +95,11 @@ CLONECOMMANDS
 
 # Switch branch to tagged release
 cd $final_path/live
+url=$(curl -s https://api.github.com/repos/tootsuite/mastodon/releases/latest | sort -r | head -1 | cut -d\" -f4)
+version=$(echo $url | cut -d/ -f8)
 sudo su - $app <<SWITCHCOMMANDS
 pushd ~/live
-git checkout $(git tag | tail -n 1)
+git checkout $version
 SWITCHCOMMANDS
 
 # Be king rewind (/var/cache/yunohost/from_file/scripts)
diff --git a/scripts/restore b/scripts/restore
index 3a2eeaf..5860e2c 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -35,30 +35,30 @@ fi
 # Check configuration files nginx
 nginx_conf="/etc/nginx/conf.d/${domain}.d/${app}.conf"
 if [ -f $nginx_conf ]; then
-	ynh_die "The NGINX configuration already exists at '${nginx_conf}'. 
+	ynh_die "The NGINX configuration already exists at '${nginx_conf}'.
 	You should safely delete it before restoring this app."
 fi
 # Check configuration files php-fpm
 crontab_conf="/etc/cron.d/${app}"
-if [ -f $crontab_conf ]; then 
-	ynh_die "The CRONTAB configuration already exists at '${crontab_conf}'. 
+if [ -f $crontab_conf ]; then
+	ynh_die "The CRONTAB configuration already exists at '${crontab_conf}'.
 	You should safely delete it before restoring this app."
 fi
 
 # Restore services
 web_systemd="/etc/systemd/system/${app}-web.service"
 if [ -f "${web_systemd}" ]; then
-	ynh_die "The MASTODON WEB configuration already exists at '${web_systemd}'. 
+	ynh_die "The MASTODON WEB configuration already exists at '${web_systemd}'.
 	You should safely delete it before restoring this app."
 fi
 sidekiq_systemd="/etc/systemd/system/${app}-sidekiq.service"
 if [ -f "${sidekiq_systemd}" ]; then
-	ynh_die "The MASTODON SIDEKIQ configuration already exists at '${sidekiq_systemd}'. 
+	ynh_die "The MASTODON SIDEKIQ configuration already exists at '${sidekiq_systemd}'.
 	You should safely delete it before restoring this app."
 fi
 streaming_systemd="/etc/systemd/system/${app}-streaming.service"
 if [ -f "${streaming_systemd}" ]; then
-	ynh_die "The MASTODON STREAMING configuration already exists at '${streaming_systemd}'. 
+	ynh_die "The MASTODON STREAMING configuration already exists at '${streaming_systemd}'.
 	You should safely delete it before restoring this app."
 fi
 
@@ -67,7 +67,7 @@ sudo adduser $app --home /opt/$app --gecos "First Last,RoomNumber,WorkPhone,Home
 
 # Reinstall dependencies
 	# Install debian package
-	ynh_package_install imagemagick libpq-dev libxml2-dev libxslt1-dev file curl apt-transport-https
+	ynh_package_install imagemagick libpq-dev libxml2-dev libxslt1-dev file curl apt-transport-https pkg-config libprotobuf-dev protobuf-compiler
 
 	# Install redis package
 	ynh_package_install redis-server redis-tools
@@ -89,7 +89,7 @@ sudo adduser $app --home /opt/$app --gecos "First Last,RoomNumber,WorkPhone,Home
 
 	# Install de Node.js
 	pushd /opt
-	curl -sL https://deb.nodesource.com/setup_4.x | sudo bash -
+	curl -sL https://deb.nodesource.com/setup_6.x | sudo bash -
 	sudo apt-get -y install nodejs
 
 	# Install Yarn
@@ -97,7 +97,7 @@ sudo adduser $app --home /opt/$app --gecos "First Last,RoomNumber,WorkPhone,Home
 
 	# Return to home
 	popd
-	
+
  # Restore sources & data
 sudo cp -a ./sources/. "$final_path"
 
@@ -117,21 +117,23 @@ sudo su -c "psql" postgres <<< \
 sudo su -c "psql" postgres <<< \
 			"update pg_database set datistemplate='true' where datname='template1';"
 
+# Install rbenv
+sudo su - $app <<COMMANDS
+pushd ~/.rbenv
+src/configure && make -C src
+echo 'export PATH="/opt/mastodon/.rbenv/bin:/opt/mastodon/live/bin:$PATH"' >> ~/.profile
+echo 'export PATH="/opt/mastodon/.rbenv/bin:/opt/mastodon/live/bin:$PATH"' >> ~/.bashrc
+echo 'eval "\$(rbenv init -)"' >> ~/.profile
+COMMANDS
+
 # Create user for db postgresql
 ynh_psql_create_db_without_password "$app"
 
 # Setup database
-sudo su - $app <<SCOMMANDS
-cd ~/live
-RAILS_ENV=production bin/bundle exec rails db:setup
-SCOMMANDS
-
-# Restore Mastodon
-sudo su - $app <<RCOMMANDS
-cd ~/live
-RAILS_ENV=production bin/bundle exec rails db:migrate
-RAILS_ENV=production bin/bundle exec rails assets:precompile
-RCOMMANDS
+#sudo su - $app <<SCOMMANDS
+#cd ~/live
+#RAILS_ENV=production bin/bundle exec rails db:setup
+#SCOMMANDS
 
 # copy database dump
 sudo cp $YNH_APP_BACKUP_DIR/mastodon_db.sql $final_path
@@ -150,6 +152,16 @@ ynh_secure_remove $final_path/mastodon_db.sql
 # Create symlink for ruby
 sudo ln -s /opt/mastodon/.rbenv/versions/2.4.1/bin/ruby /usr/bin/ruby || true
 
+# Upgrade Mastodon
+sudo su - $app <<RCOMMANDS
+cd ~/live
+bin/bundle install
+yarn install --pure-lockfile
+#RAILS_ENV=production bin/bundle exec rails db:migrate
+#RAILS_ENV=production bundle exec rails assets:clean
+#RAILS_ENV=production bin/bundle exec rails assets:precompile
+RCOMMANDS
+
 # Restore nginx configuration files
 sudo cp -a ./nginx.conf   "$nginx_conf"
 # Restore crontab
diff --git a/scripts/upgrade b/scripts/upgrade
index f070bbd..2a9b0fe 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -40,6 +40,14 @@ sudo systemctl stop mastodon-*.service
 # Change owner of live folder
 sudo chown -R $app: $final_path/live
 
+# upgrade Node.js v4 to v6
+node_version=$(nodejs --version)
+if [[ $node_version =~ ^v4.*$  ]]; then
+	pushd /opt
+	curl -sL https://deb.nodesource.com/setup_6.x | sudo bash -
+	sudo apt-get -y install nodejs
+fi
+
 # Download Mastodon
 sudo su - $app <<PULLCOMMANDS
 pushd ~/live
@@ -50,11 +58,24 @@ PULLCOMMANDS
 
 # Switch branch to tagged release
 cd $final_path/live
+url=$(curl -s https://api.github.com/repos/tootsuite/mastodon/releases/latest | sort -r | head -1 | cut -d\" -f4)
+version=$(echo $url | cut -d/ -f8)
 sudo su - $app <<SWITCHCOMMANDS
 pushd ~/live
-git checkout $(git tag | tail -n 1)
+git checkout $version
 SWITCHCOMMANDS
 
+# upgrade Node.js v4 to v6
+node_version=$(nodejs --version)
+if [[ $node_version =~ ^v4.*$  ]]; then
+	pushd /opt
+	curl -sL https://deb.nodesource.com/setup_6.x | sudo bash -
+	sudo apt-get -y install nodejs
+fi
+
+# add additional package for release 1.4
+ynh_package_install pkg-config libprotobuf-dev protobuf-compiler
+
 # Apply Mastodon upgrade
 sudo su - $app <<COMMANDS
 pushd ~/live