diff --git a/README.md b/README.md
index c489e63..c164048 100644
--- a/README.md
+++ b/README.md
@@ -24,18 +24,16 @@ From command line:
 
 `sudo yunohost app upgrade -l Seafile https://github.com/mbugeia/seafile_ynh seafile`
 
-This will install Seafile v4.1.1 with HTTPS Sync only. /!\Not available on ARM for now /!\
+This will install Seafile v4.3.1 with HTTPS Sync only.
 
 Infos
 -----
 
-Seafile server v4.0.6
+Seafile server v4.3.1
 
-Available for x64, i386 and arm (Raspberry) architecture but only tested for x64 (feedback are welcome)
+Available for x64, i386, armhf and Raspberry architecture but only tested for x64 (feedback are welcome)
 
 TODO
 -----
 
- - Webdav configuration
- - Auto login/logout
- - logrotate configuration
\ No newline at end of file
+ - Auto login/logout
\ No newline at end of file
diff --git a/conf/add_sso_conf.py b/conf/add_sso_conf.py
index 5c43e4f..09e9666 100644
--- a/conf/add_sso_conf.py
+++ b/conf/add_sso_conf.py
@@ -6,6 +6,7 @@ with open("/etc/ssowat/conf.json.persistent", "r") as jsonFile:
         data["unprotected_urls"].append("/seafhttp")
     else:
         data["unprotected_urls"] = ["/seafhttp"]
+    data["unprotected_urls"].append("/seafdav")
 
 with open("/etc/ssowat/conf.json.persistent", "w") as jsonFile:
     jsonFile.write(json.dumps(data, indent=4, sort_keys=True))
\ No newline at end of file
diff --git a/conf/add_sso_conf_webdav.py b/conf/add_sso_conf_webdav.py
new file mode 100644
index 0000000..e5570d8
--- /dev/null
+++ b/conf/add_sso_conf_webdav.py
@@ -0,0 +1,8 @@
+import json
+
+with open("/etc/ssowat/conf.json.persistent", "r") as jsonFile:
+    data = json.load(jsonFile)
+    data["unprotected_urls"].append("/seafdav")
+
+with open("/etc/ssowat/conf.json.persistent", "w") as jsonFile:
+    jsonFile.write(json.dumps(data, indent=4, sort_keys=True))
\ No newline at end of file
diff --git a/conf/first_launch.exp b/conf/first_launch.exp
index ebb633a..91687ea 100644
--- a/conf/first_launch.exp
+++ b/conf/first_launch.exp
@@ -4,7 +4,7 @@ set timeout 10
 set admin_email [lindex $argv 0]
 set admin_password [lindex $argv 1]
 
-spawn /var/www/seafile/seafile-server-4.0.6/seahub.sh start-fastcgi
+spawn /var/www/seafile/seafile-server-latest/seahub.sh start-fastcgi
 
 expect "for the admin account?"
 send "$admin_email\r";
diff --git a/conf/install.exp b/conf/install.exp
index 49f9470..fafcd4a 100644
--- a/conf/install.exp
+++ b/conf/install.exp
@@ -3,13 +3,11 @@ set timeout 10
 
 set server_name [lindex $argv 0]
 set domain [lindex $argv 1]
-set ccnet_port [lindex $argv 2]
-set seafile_data [lindex $argv 3]
-set seafile_port [lindex $argv 4]
-set fileserver_port [lindex $argv 5]
-set db_pwd [lindex $argv 6]
+set seafile_data [lindex $argv 2]
+set fileserver_port [lindex $argv 3]
+set db_pwd [lindex $argv 4]
 
-spawn /var/www/seafile/seafile-server-4.0.6/setup-seafile-mysql.sh
+spawn /var/www/seafile/seafile-server-4.3.1/setup-seafile-mysql.sh
 
 expect "Press ENTER to continue"
 send "\r";
@@ -20,15 +18,9 @@ send "$server_name\r";
 expect "What is the ip or domain of the server?"
 send "$domain\r";
 
-expect "Which port do you want to use for the ccnet server?"
-send "$ccnet_port\r";
-
 expect "Where do you want to put your seafile data?"
 send "$seafile_data\r";
 
-expect "Which port do you want to use for the seafile server?"
-send "$seafile_port\r";
-
 expect "Which port do you want to use for the seafile fileserver?"
 send "$fileserver_port\r";
 
diff --git a/conf/logrotate b/conf/logrotate
new file mode 100644
index 0000000..59942a2
--- /dev/null
+++ b/conf/logrotate
@@ -0,0 +1,28 @@
+SEAFILE_DIR/logs/seaf-server.log
+{
+        daily
+        missingok
+        rotate 52
+        compress
+        delaycompress
+        notifempty
+        sharedscripts
+        postrotate
+                [ ! -f SEAFILE_DIR/pids/seaf-server.pid ] || kill -USR1 `cat SEAFILE_DIR/pids/seaf-server.pid`
+        endscript
+}
+
+SEAFILE_DIR/logs/ccnet.log
+{
+        daily
+        missingok
+        rotate 52
+        compress
+        delaycompress
+        notifempty
+        sharedscripts
+        postrotate
+                [ ! -f SEAFILE_DIR/pids/ccnet.pid ] || kill -USR1 `cat SEAFILE_DIR/pids/ccnet.pid`
+        endscript
+}
+ 
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 67cbd85..2a5efd0 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -33,9 +33,31 @@ location /seafhttp/ {
         client_max_body_size 0;
         proxy_connect_timeout  36000s;
         proxy_read_timeout  36000s;
-    }
+}
 
 
 location PATHTOCHANGE/media {
         alias ALIASTOCHANGEseafile-server-latest/seahub/media;
-    }
+}
+
+location /seafdav {
+        fastcgi_pass    127.0.0.1:WEBDAV_PORT;
+        fastcgi_param   SCRIPT_FILENAME     $document_root$fastcgi_script_name;
+        fastcgi_param   PATH_INFO           $fastcgi_script_name;
+
+        fastcgi_param   SERVER_PROTOCOL     $server_protocol;
+        fastcgi_param   QUERY_STRING        $query_string;
+        fastcgi_param   REQUEST_METHOD      $request_method;
+        fastcgi_param   CONTENT_TYPE        $content_type;
+        fastcgi_param   CONTENT_LENGTH      $content_length;
+        fastcgi_param   SERVER_ADDR         $server_addr;
+        fastcgi_param   SERVER_PORT         $server_port;
+        fastcgi_param   SERVER_NAME         $server_name;
+
+        fastcgi_param   HTTPS               on;
+
+        client_max_body_size 0;
+
+        access_log      /var/log/nginx/seafdav.access.log;
+        error_log       /var/log/nginx/seafdav.error.log;
+}
\ No newline at end of file
diff --git a/conf/nginx_add_webdav b/conf/nginx_add_webdav
new file mode 100644
index 0000000..d3e9091
--- /dev/null
+++ b/conf/nginx_add_webdav
@@ -0,0 +1,21 @@
+location /seafdav {
+        fastcgi_pass    127.0.0.1:WEBDAV_PORT;
+        fastcgi_param   SCRIPT_FILENAME     $document_root$fastcgi_script_name;
+        fastcgi_param   PATH_INFO           $fastcgi_script_name;
+
+        fastcgi_param   SERVER_PROTOCOL     $server_protocol;
+        fastcgi_param   QUERY_STRING        $query_string;
+        fastcgi_param   REQUEST_METHOD      $request_method;
+        fastcgi_param   CONTENT_TYPE        $content_type;
+        fastcgi_param   CONTENT_LENGTH      $content_length;
+        fastcgi_param   SERVER_ADDR         $server_addr;
+        fastcgi_param   SERVER_PORT         $server_port;
+        fastcgi_param   SERVER_NAME         $server_name;
+
+        fastcgi_param   HTTPS               on;
+
+        client_max_body_size 0;
+
+        access_log      /var/log/nginx/seafdav.access.log;
+        error_log       /var/log/nginx/seafdav.error.log;
+}
\ No newline at end of file
diff --git a/conf/remove_sso_conf.py b/conf/remove_sso_conf.py
index a29c367..ff59377 100644
--- a/conf/remove_sso_conf.py
+++ b/conf/remove_sso_conf.py
@@ -3,6 +3,7 @@ import json
 with open("/etc/ssowat/conf.json.persistent", "r") as jsonFile:
     data = json.load(jsonFile)
     data["unprotected_urls"].remove("/seafhttp")
+    data["unprotected_urls"].remove("/seafdav")
 
 with open("/etc/ssowat/conf.json.persistent", "w") as jsonFile:
     jsonFile.write(json.dumps(data, indent=4, sort_keys=True))
\ No newline at end of file
diff --git a/conf/seafdav.conf b/conf/seafdav.conf
new file mode 100644
index 0000000..68fe00b
--- /dev/null
+++ b/conf/seafdav.conf
@@ -0,0 +1,5 @@
+[WEBDAV]
+enabled = true
+port = WEBDAV_PORT
+fastcgi = true
+share_name = /seafdav
\ No newline at end of file
diff --git a/conf/upgrade_4.1.1.exp b/conf/upgrade_4.1.1.exp
index 67b2fa2..d1ec85f 100644
--- a/conf/upgrade_4.1.1.exp
+++ b/conf/upgrade_4.1.1.exp
@@ -3,7 +3,7 @@ set timeout 5
 
 set mysql_password [lindex $argv 0]
 
-spawn /var/www/seafile/seafile-server-4.1.1/upgrade/upgrade_4.0_4.1.sh
+spawn /var/www/seafile/seafile-server-4.3.1/upgrade/upgrade_4.0_4.1.sh
 
 expect "to contiune"
 send "\r";
diff --git a/conf/upgrade_4.2.1.exp b/conf/upgrade_4.2.1.exp
new file mode 100644
index 0000000..43c58a1
--- /dev/null
+++ b/conf/upgrade_4.2.1.exp
@@ -0,0 +1,11 @@
+#!/usr/bin/expect
+set timeout 5
+
+set mysql_password [lindex $argv 0]
+
+spawn /var/www/seafile/seafile-server-4.3.1/upgrade/upgrade_4.1_4.2.sh
+
+expect "to contiune"
+send "\r";
+
+interact
\ No newline at end of file
diff --git a/conf/upgrade_4.3.1.exp b/conf/upgrade_4.3.1.exp
new file mode 100644
index 0000000..1460173
--- /dev/null
+++ b/conf/upgrade_4.3.1.exp
@@ -0,0 +1,11 @@
+#!/usr/bin/expect
+set timeout 5
+
+set mysql_password [lindex $argv 0]
+
+spawn /var/www/seafile/seafile-server-4.3.1/upgrade/upgrade_4.2_4.3.sh
+
+expect "to contiune"
+send "\r";
+
+interact
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index 556b838..2c9f820 100644
--- a/manifest.json
+++ b/manifest.json
@@ -70,7 +70,7 @@
                     "en": "What is the server architecture?",
                     "fr": "Quelle est l'architecture du serveur ?"
                 },
-                "choices": ["x86-64", "i386", "arm"],
+                "choices": ["x86-64", "i386", "rpi", "armhf"],
                 "default": "x86-64"
             }
         ]
diff --git a/scripts/install b/scripts/install
index 1c6e871..521c7ee 100644
--- a/scripts/install
+++ b/scripts/install
@@ -9,7 +9,7 @@ is_public=$6
 architecture=$7
 final_path=/var/www/seafile
 seafile_data=/home/yunohost.app/seafile-data
-seafile_version=4.0.6
+seafile_version=4.3.1
 
 # Retrieve admin email
 admin_email=$(sudo yunohost user info $admin | grep mail: | sed "s/mail: //g")
@@ -48,20 +48,17 @@ sudo mv seafile-server-$seafile_version/* $final_path/seafile-server-$seafile_ve
 sudo mv ../sources/'seafile-server_'$seafile_version'_'$architecture'.tar' $final_path/installed
 
 # Find available ports
-findPort 10001
-ccnet_port=$port
-findPort 12001
-seafile_port=$port
 findPort 8000
 seahub_port=$port
 findPort 8082
 fileserver_port=$port
+findPort 8080
+webdav_port=$port
 
 # store config in yunohost
-sudo yunohost app setting seafile ccnet_port -v $ccnet_port
-sudo yunohost app setting seafile seafile_port -v $seafile_port
 sudo yunohost app setting seafile seahub_port -v $seahub_port
 sudo yunohost app setting seafile fileserver_port -v $fileserver_port
+sudo yunohost app setting seafile fileserver_port -v $webdav_port
 sudo yunohost app setting seafile is_public -v $is_public
 sudo yunohost app setting seafile architecture -v $architecture
 sudo yunohost app setting seafile installed_version -v $seafile_version
@@ -77,7 +74,7 @@ sudo yunohost app setting seafile db_pwd -v $db_pwd
 # Run install script
 sudo chmod +x ../conf/install.exp
 sudo chmod +x $final_path/seafile-server-$seafile_version/setup-seafile-mysql.sh
-sudo ../conf/install.exp $server_name $domain $ccnet_port $seafile_data $seafile_port $fileserver_port $db_pwd
+sudo ../conf/install.exp $server_name $domain $seafile_data $fileserver_port $db_pwd
 
 # Update seafile config
 sudo sed -i "s@http://@https://@g" $final_path/ccnet/ccnet.conf
@@ -86,6 +83,8 @@ echo 'FILE_SERVER_ROOT = "https://'$domain'/seafhttp"' | sudo tee -a $final_path
 echo 'SITE_ROOT = "'$path'/"' | sudo tee -a $final_path/seahub_settings.py
 echo 'SERVE_STATIC = False' | sudo tee -a $final_path/seahub_settings.py
 echo 'MEDIA_URL = "'$path'/media/"' | sudo tee -a $final_path/seahub_settings.py
+echo 'COMPRESS_URL = MEDIA_URL' | sudo tee -a $final_path/seahub_settings.py
+echo "STATIC_URL = MEDIA_URL + 'assets/'" | sudo tee -a $final_path/seahub_settings.py
 
 # Email configuration
 echo 'EMAIL_USE_TLS = False' | sudo tee -a $final_path/seahub_settings.py
@@ -114,6 +113,7 @@ sed -i "s@PATHTOCHANGE@$path@g" ../conf/nginx.conf
 sed -i "s@ALIASTOCHANGE@$final_path/@g" ../conf/nginx.conf
 sed -i "s@SEAHUB_PORT@$seahub_port@g" ../conf/nginx.conf
 sed -i "s@SEAFILE_FILESERVER_PORT@$fileserver_port@g" ../conf/nginx.conf
+sed -i "s@WEBDAV_PORT@$webdav_port@g" ../conf/nginx.conf
 sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/seafile.conf
 
 # Copy first launch script
@@ -124,15 +124,11 @@ sudo chmod +x $final_path/first_launch.exp
 sudo chown -R www-data:www-data $final_path
 sudo chown -R www-data:www-data $seafile_data
 
-# Open port
-sudo yunohost firewall allow $ccnet_port
-sudo yunohost firewall allow $seafile_port
-
 # Start seafile, seahub and populate admin account
-sudo su - www-data -c "/var/www/seafile/seafile-server-4.0.6/seafile.sh start"
+sudo su - www-data -c "/var/www/seafile/seafile-server-$seafile_version/seafile.sh start"
 sudo su - www-data -c "$final_path/first_launch.exp $admin_email $admin_password"
 
-# add sso config to unprotect domain.tld/seafhttp in /etc/ssowat/conf.json.persistent
+# Add sso config to unprotect domain.tld/seafhttp + domain.tld/seafdav do in /etc/ssowat/conf.json.persistent
 sudo cp ../conf/add_sso_conf.py $final_path
 sudo cp ../conf/remove_sso_conf.py $final_path
 sudo python $final_path/add_sso_conf.py
@@ -147,6 +143,15 @@ else
 	sudo yunohost app setting seafile unprotected_uris -v "/"
 fi
 
+# Add webdav
+sudo cp ../conf/seafdav.conf $final_path/conf/seafdav.conf
+sudo sed -i "s@SEAFILE_FILESERVER_PORT@$fileserver_port@g" $final_path/conf/seafdav.conf
+
+# Add logrotate
+sudo cp ../conf/logrotate /etc/logrotate.d/seafile
+sudo sed -i "s@SEAFILE_DIR@$final_path@g" /etc/logrotate.d/seafile
+sudo service rsyslog restart
+
 # register yunohost service
 sudo yunohost service add seafile-server
 
diff --git a/scripts/remove b/scripts/remove
index ed1cd6f..86a07b7 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -15,12 +15,6 @@ sudo rm -rf /home/yunohost.app/seafile-data
 # Remove databases
 mysql -u root -p$root_pwd -e "DROP DATABASE ccnetdb ; DROP DATABASE seafiledb ; DROP DATABASE seahubdb ; DROP USER seafile@localhost ;"
 
-ccnet_port=$(sudo yunohost app setting seafile ccnet_port)
-seafile_port=$(sudo yunohost app setting seafile seafile_port)
-
-sudo yunohost firewall disallow $ccnet_port
-sudo yunohost firewall disallow $seafile_port
-
 sudo yunohost service remove seafile-server
 
 # Restart services
diff --git a/scripts/upgrade b/scripts/upgrade
index 565dd62..3fc1d42 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -5,7 +5,7 @@ app=seafile
 installed_version=$(sudo yunohost app setting $app installed_version)
 architecture=$(sudo yunohost app setting $app architecture)
 root_pwd=$(sudo cat /etc/yunohost/mysql)
-seafile_version=4.1.1
+seafile_version=4.3.1
 final_path=/var/www/$app
 
 # extract new version
@@ -19,20 +19,82 @@ sudo service seafile-server stop
 
 # permission to execute update script and expect helper
 sudo chmod +x ../conf/upgrade_4.1.1.exp
+sudo chmod +x ../conf/upgrade_4.2.1.exp
+sudo chmod +x ../conf/upgrade_4.3.1.exp
 sudo chmod +x $final_path/seafile-server-$seafile_version/upgrade/upgrade_4.0_4.1.sh
+sudo chmod +x $final_path/seafile-server-$seafile_version/upgrade/upgrade_4.1_4.2.sh
+sudo chmod +x $final_path/seafile-server-$seafile_version/upgrade/upgrade_4.2_4.3.sh
 
 # do the upgrade
-sudo ../conf/upgrade_4.1.1.exp $root_pwd
+case $installed_version in
+"4.0."* )
+	# Update seafile by script
+	sudo ../conf/upgrade_4.1.1.exp $root_pwd
+	sudo ../conf/upgrade_4.2.1.exp $root_pwd
+	sudo ../conf/upgrade_4.3.1.exp $root_pwd
+;;
+"4.1."* )
+	# Update seafile by script
+	sudo ../conf/upgrade_4.2.1.exp $root_pwd
+	sudo ../conf/upgrade_4.3.1.exp $root_pwd
+;;
+esac
+
+## Install webdav and logrotate if not installed
+if [[ $installed_version = "4.0."* ]] || [[ $installed_version = "4.1."* ]]
+then
+	# findPort
+	findPort () {
+	    port=$1
+
+	    sudo yunohost app checkport $port
+	    while [[ ! $? -eq 0 ]]
+		do
+		    port=$(($port + 1))
+		    sudo yunohost app checkport $port
+		done
+
+	  return $port
+	}
+	
+	findPort 8080
+	webdav_port=$port
+	sudo yunohost app setting seafile fileserver_port -v $webdav_port
+	
+	# Disallow port that was used by old seafile client
+	ccnet_port=$(sudo yunohost app setting $app ccnet_port)
+	seafile_port=$(sudo yunohost app setting $app seafile_port)
+	sudo yunohost firewall disallow Both $ccnet_port
+	sudo yunohost firewall disallow Both $seafile_port
+	
+	# Add webdav to nginx config
+	sed -i "s@WEBDAV_PORT@$webdav_port@g" ../conf/nginx_add_webdav
+	domain=$(sudo yunohost app setting seafile domain)
+	echo $(cat ../conf/nginx_add_webdav) | sudo tee -a /etc/nginx/conf.d/$domain.d/seafile.conf
+	
+	# Add webdav config
+	sudo cp ../conf/seafdav.conf $final_path/conf/seafdav.conf
+	sudo sed -i "s@SEAFILE_FILESERVER_PORT@$fileserver_port@g" $final_path/conf/seafdav.conf
+	
+	# Add sso config to unprotect domain.tld/seafdav in /etc/ssowat/conf.json.persistent
+	sudo cp ../conf/add_sso_conf.py $final_path
+	sudo cp ../conf/add_sso_conf_webdav.py $final_path
+	sudo cp ../conf/remove_sso_conf.py $final_path
+	sudo python $final_path/add_sso_conf_webdav.py
+	
+	# Update seafile config
+	echo 'COMPRESS_URL = MEDIA_URL' | sudo tee -a $final_path/seahub_settings.py
+	echo "STATIC_URL = MEDIA_URL + 'assets/'" | sudo tee -a $final_path/seahub_settings.py
+	
+	# Add logrotate
+	sudo cp ../conf/logrotate /etc/logrotate.d/seafile
+	sudo sed -i "s@SEAFILE_DIR@$final_path@g" /etc/logrotate.d/seafile
+	sudo service rsyslog restart
+fi
 
 # restore correct permissions
 sudo chown -R www-data:www-data $final_path
 
-# disallow port that was used by old seafile client
-ccnet_port=$(sudo yunohost app setting $app ccnet_port)
-seafile_port=$(sudo yunohost app setting $app seafile_port)
-sudo yunohost firewall disallow $ccnet_port
-sudo yunohost firewall disallow $seafile_port
-
 # restart seafile server
 sudo service seafile-server start
 
diff --git a/sources/seafile-server_4.1.1_i386.tar b/sources/seafile-server_4.1.1_i386.tar
deleted file mode 100644
index 8af778d..0000000
Binary files a/sources/seafile-server_4.1.1_i386.tar and /dev/null differ
diff --git a/sources/seafile-server_4.0.6_arm.tar b/sources/seafile-server_4.3.1_armhf.tar
similarity index 63%
rename from sources/seafile-server_4.0.6_arm.tar
rename to sources/seafile-server_4.3.1_armhf.tar
index 975d76f..853ee6c 100644
Binary files a/sources/seafile-server_4.0.6_arm.tar and b/sources/seafile-server_4.3.1_armhf.tar differ
diff --git a/sources/seafile-server_4.1.1_x86-64.tar b/sources/seafile-server_4.3.1_i386.tar
similarity index 67%
rename from sources/seafile-server_4.1.1_x86-64.tar
rename to sources/seafile-server_4.3.1_i386.tar
index db8a74b..e4b42c2 100644
Binary files a/sources/seafile-server_4.1.1_x86-64.tar and b/sources/seafile-server_4.3.1_i386.tar differ
diff --git a/sources/seafile-server_4.0.6_i386.tar b/sources/seafile-server_4.3.1_rpi.tar
similarity index 64%
rename from sources/seafile-server_4.0.6_i386.tar
rename to sources/seafile-server_4.3.1_rpi.tar
index 49612e9..a25ef59 100644
Binary files a/sources/seafile-server_4.0.6_i386.tar and b/sources/seafile-server_4.3.1_rpi.tar differ
diff --git a/sources/seafile-server_4.0.6_x86-64.tar b/sources/seafile-server_4.3.1_x86-64.tar
similarity index 64%
rename from sources/seafile-server_4.0.6_x86-64.tar
rename to sources/seafile-server_4.3.1_x86-64.tar
index ccd4dd5..1c5c7c3 100644
Binary files a/sources/seafile-server_4.0.6_x86-64.tar and b/sources/seafile-server_4.3.1_x86-64.tar differ