diff --git a/check_process b/check_process
index 487c4da..4292fa2 100644
--- a/check_process
+++ b/check_process
@@ -20,7 +20,7 @@
 		backup_restore=1
 		multi_instance=1
 		port_already_use=0
-		change_url=0
+		change_url=1
 ;;; Options
 Email=anmol@datamol.org
 Notification=yes
diff --git a/conf/config.ini.php b/conf/config.ini.php
index beda577..0d3b9c6 100644
--- a/conf/config.ini.php
+++ b/conf/config.ini.php
@@ -2,7 +2,8 @@
 ; file automatically generated or modified by Matomo; you can manually override the default values in global.ini.php by redefining them in this file.
 [database]
 host = "127.0.0.1"
-username = "__DB__"
+username = "__DB_NAME__"
 password = "__DB_PASSWORD__"
-dbname = "__DB__"
+dbname = "__DB_NAME__"
 tables_prefix = "matomo_"
+
diff --git a/conf/cron b/conf/cron
index 8e8ce50..02900b9 100644
--- a/conf/cron
+++ b/conf/cron
@@ -1,2 +1,2 @@
 MAILTO="admin"
-5 * * * * __USER__ /usr/bin/php YNH_WWW_PATH/console core:archive --url=https://__DOMAIN__/__PATH__ > /dev/null
+5 * * * * __APP__ /usr/bin/php__PHPVERSION__ __FINALPATH__/console core:archive --url=https://__DOMAIN____PATH__ > /dev/null
diff --git a/conf/extra_php-fpm.conf b/conf/extra_php-fpm.conf
new file mode 100644
index 0000000..a5425fc
--- /dev/null
+++ b/conf/extra_php-fpm.conf
@@ -0,0 +1,5 @@
+; Additional php.ini defines, specific to this pool of workers.
+
+php_admin_value[upload_max_filesize] = 100M
+php_admin_value[memory_limit] = 256M
+php_admin_value[post_max_size] = 50M
diff --git a/conf/icons.src b/conf/icons.src
new file mode 100644
index 0000000..6ffad8e
--- /dev/null
+++ b/conf/icons.src
@@ -0,0 +1,6 @@
+SOURCE_URL=https://github.com/matomo-org/matomo-icons/archive/e96ef33bf490794829831cbb795fd4ea67259699.tar.gz
+SOURCE_SUM=9a6457d8f138216f911621db7a5af5fbce7214e62d6f184730f216986e498b53
+SOURCE_SUM_PRG=sha256sum
+SOURCE_FORMAT=tar.gz
+SOURCE_IN_SUBDIR=true
+SOURCE_FILENAME=
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 556b622..b41ead3 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -11,8 +11,8 @@ location __PATH__/ {
 
   index index.php;
 
-  # Common parameter to increase upload size limit in conjunction with dedicated php-fpm file
-  #client_max_body_size 50M;
+  # Common parameter to increase upload size limit in conjunction with dedicated PHP-FPM file
+  client_max_body_size 100M;
 
   try_files $uri $uri/ index.php;
   location ~ [^/]\.php(/|$) {
diff --git a/issue_template.md b/issue_template.md
index 0f954a7..1cad34d 100644
--- a/issue_template.md
+++ b/issue_template.md
@@ -20,7 +20,7 @@ about: Create a report to help us debug, it would be nice to fill the template a
 - Hardware: *VPS bought online / Old laptop or computer / Raspberry Pi at home / Internet Cube with VPN / Other ARM board / ...*
 - YunoHost version: x.x.x
 - I have access to my server: *Through SSH | through the webadmin | direct access via keyboard / screen | ...*
-- Are you in a special context or did you perform some particular tweaking on your YunoHost instance ?: *no / yes*
+- Are you in a special context or did you perform some particular tweaking on your YunoHost instance?: *no / yes*
   - If yes, please explain:
 - Using, or trying to install package version/branch:
 - If upgrading, current package version: *can be found in the admin, or with `yunohost app info $app_id`*
diff --git a/manifest.json b/manifest.json
index 35712cc..7f5a27d 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Open source analytics platform for measuring Web statistics",
         "fr": "Plateforme d'analyse open source de mesure de statistiques Web"
     },
-    "version": "4.0.5~ynh1",
+    "version": "4.0.5~ynh2",
     "url": "https://matomo.org",
     "license": "GPL-3.0-or-later",
     "maintainer": {
@@ -50,6 +50,10 @@
                     "en": "Is it a public application?",
                     "fr": "Est-ce une application publique ?"
                 },
+                "help": {
+                    "en": "If enabled, Matomo will be accessible by people who do not have an account. This can be changed later via the webadmin.",
+                    "fr": "Si cette case est cochée, Matomo sera accessible aux personnes n’ayant pas de compte. Vous pourrez changer ceci plus tard via la webadmin."
+                },
                 "default": true
             }
         ]
diff --git a/scripts/_common.sh b/scripts/_common.sh
index e932edf..c685199 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -76,3 +76,19 @@ $(yunohost tools diagnosis | grep -B 100 "services:" | sed '/services:/d')"
 	# Send the email to the recipients
 	echo "$mail_message" | $mail_bin -a "Content-Type: text/plain; charset=UTF-8" -s "$mail_subject" "$recipients"
 }
+
+
+
+# Execute a command as another user
+# usage: ynh_exec_as USER COMMAND [ARG ...]
+ynh_exec_as() {
+  local USER=$1
+  shift 1
+
+  if [[ $USER = $(whoami) ]]; then
+    eval "$@"
+  else
+    sudo -u "$USER" "$@"
+  fi
+}
+
diff --git a/scripts/change_url b/scripts/change_url
new file mode 100644
index 0000000..253d54f
--- /dev/null
+++ b/scripts/change_url
@@ -0,0 +1,119 @@
+#!/bin/bash
+
+#=================================================
+# GENERIC STARTING
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source _common.sh
+source /usr/share/yunohost/helpers
+
+#=================================================
+# RETRIEVE ARGUMENTS
+#=================================================
+
+old_domain=$YNH_APP_OLD_DOMAIN
+old_path=$YNH_APP_OLD_PATH
+
+new_domain=$YNH_APP_NEW_DOMAIN
+new_path=$YNH_APP_NEW_PATH
+
+app=$YNH_APP_INSTANCE_NAME
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_script_progression --message="Loading installation settings..." --weight=1
+
+# Needed for helper "ynh_add_nginx_config"
+final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+
+#=================================================
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backing up the app before changing its URL (may take a while)..." --weight=1
+
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+	# Remove the new domain config file, the remove script won't do it as it doesn't know yet its location.
+	ynh_secure_remove --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+
+	# Restore it if the upgrade fails
+	ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
+#=================================================
+# CHECK WHICH PARTS SHOULD BE CHANGED
+#=================================================
+
+change_domain=0
+if [ "$old_domain" != "$new_domain" ]
+then
+	change_domain=1
+fi
+
+change_path=0
+if [ "$old_path" != "$new_path" ]
+then
+	change_path=1
+fi
+
+#=================================================
+# MODIFY URL IN NGINX CONF
+#=================================================
+ynh_script_progression --message="Updating NGINX web server configuration..." --weight=3
+
+nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
+
+# Change the path in the NGINX config file
+if [ $change_path -eq 1 ]
+then
+	# Make a backup of the original NGINX config file if modified
+	ynh_backup_if_checksum_is_different --file="$nginx_conf_path"
+	# Set global variables for NGINX helper
+	domain="$old_domain"
+	path_url="$new_path"
+	# Create a dedicated NGINX config
+	ynh_add_nginx_config
+fi
+
+# Change the domain for NGINX
+if [ $change_domain -eq 1 ]
+then
+	# Delete file checksum for the old conf file location
+	ynh_delete_file_checksum --file="$nginx_conf_path"
+	mv $nginx_conf_path /etc/nginx/conf.d/$new_domain.d/$app.conf
+	# Store file checksum for the new config file location
+	ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+fi
+
+#=================================================
+# SETUP A CRON
+#=================================================
+ynh_script_progression --message="Setuping a cron..."
+
+cp ../conf/cron /etc/cron.d/$app
+
+ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__DOMAIN__" --replace_string="$new_domain" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__PATH__" --replace_string="$new_path" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__PHPVERSION__" --replace_string="$phpversion" --target_file="/etc/cron.d/$app"
+
+#=================================================
+# RELOAD NGINX
+#=================================================
+ynh_script_progression --message="Reloading NGINX web server..." --weight=1
+
+ynh_systemd_action --service_name=nginx --action=reload
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Change of URL completed for $app" --last
diff --git a/scripts/install b/scripts/install
index 6f18a0c..9e41513 100755
--- a/scripts/install
+++ b/scripts/install
@@ -96,43 +96,26 @@ phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 #=================================================
 # INSTALL COMPOSER AND DEPENDENCIES
 #=================================================
-ynh_script_progression --message="Installing composer and dependencies..."
+ynh_script_progression --message="Installing Composer and dependencies..."
 
 ynh_install_composer --phpversion="$phpversion" --workdir="$final_path"
 
+# Install missing icons
+ynh_setup_source --dest_dir="$final_path/plugins/Morpheus/icons" --source_id="icons"
+chmod -R 755 "$final_path/plugins/Morpheus"
+
 #=================================================
 # SETUP A CRON
 #=================================================
 ynh_script_progression --message="Setuping a cron..."
 
-ynh_replace_string  --match_string="YNH_WWW_PATH" --replace_string="$final_path" --target_file="../conf/cron"
-ynh_replace_string --match_string="__USER__" --replace_string="$app" --target_file="../conf/cron"
-ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="../conf/cron"
-ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="../conf/cron"
-cp -f ../conf/cron /etc/cron.d/$app
+cp ../conf/cron /etc/cron.d/$app
 
-#=================================================
-# MODIFY A CONFIG FILE (TO DO: Automate install)
-#=================================================
-ynh_script_progression --message="Modifying a config file..."
-
-### `ynh_replace_string` is used to replace a string in a file.
-### (It's compatible with sed regular expressions syntax)
-## cp -f ../conf/config.ini.php "$final_path/config/config.ini.php"
-## ynh_replace_string "__DB__"          "$db_name" "$final_path/config/config.ini.php"
-## ynh_replace_string "__DB_PASSWORD__" "$db_pwd"  "$final_path/config/config.ini.php"
-
-#=================================================
-# STORE THE CONFIG FILE CHECKSUM
-#=================================================
-ynh_script_progression --message="Storing the config file checksum..."
-
-### `ynh_store_file_checksum` is used to store the checksum of a file.
-### That way, during the upgrade script, by using `ynh_backup_if_checksum_is_different`,
-### you can make a backup of this file before modifying it again if the admin had modified it.
-
-# Calculate and store the config file checksum into the app settings
-## ynh_store_file_checksum --file="$final_path/CONFIG_FILE"
+ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__PHPVERSION__" --replace_string="$phpversion" --target_file="/etc/cron.d/$app"
 
 #=================================================
 # GENERIC FINALIZATION
@@ -152,8 +135,6 @@ ynh_script_progression --message="Configuring SSOwat..."
 # Make app public if necessary or protect it
 if [ $is_public -eq 1 ]
 then
-	# Everyone can access the app.
-	# The "main" permission is automatically created before the install script.
 	ynh_permission_update --permission "main" --add "visitors"
 fi
 
@@ -169,12 +150,15 @@ ynh_systemd_action --service_name=nginx --action=reload
 #=================================================
 ynh_script_progression --message="Sending a readme for the admin..."
 
-message=" $app was successfully installed :)
+message="Matomo was successfully installed :)
+
 Please open your $app domain: https://$domain$path_url
+
 Complete the registration process from the setup page displayed.
-Details for mysql database to be enterted while registration process:
-Database login: $app
-Database  name: $app
+Details for MySQL database to be enterted while registration process:
+
+Database login:    $app
+Database name:     $app
 Database password: $db_pwd
 
 If you are facing any problem or want to improve this app, please open a new issue here: https://github.com/YunoHost-Apps/matomo_ynh/issues"
diff --git a/scripts/upgrade b/scripts/upgrade
index 6f892f9..bddff85 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -22,6 +22,7 @@ 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)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # CHECK VERSION
@@ -80,8 +81,32 @@ if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
 	ynh_script_progression --message="Upgrading source files..."
 
-	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path"
+	if [[ ! -f "$final_path/config/config.ini.php" ]]; then
+		# config.ini.php is only created during the post-install process...
+		# it is therefore not present when the CI tests are carried out...
+		# This condition is only for CI test to go through the upgrade process
+		ynh_secure_remove --file="$final_path"
+		# Download, check integrity, uncompress and patch the source from app.src
+		ynh_setup_source --dest_dir="$final_path"
+	else
+		# Create a temporary directory
+		tmpdir="$(mktemp -d)"
+
+		# Backup the config file in the temp dir
+		cp -a "$final_path/config/config.ini.php" "$tmpdir/config.ini.php"
+
+		# Remove the app directory securely
+		ynh_secure_remove --file="$final_path"
+
+		# Download, check integrity, uncompress and patch the source from app.src
+		ynh_setup_source --dest_dir="$final_path"
+
+		# Copy the admin saved settings from tmp directory to final path	
+		cp -a "$tmpdir/config.ini.php" "$final_path/config/config.ini.php" 
+
+		# Remove the tmp directory securely
+		ynh_secure_remove --file="$tmpdir"
+	fi
 fi
 
 #=================================================
@@ -105,9 +130,8 @@ ynh_system_user_create --username=$app
 #=================================================
 ynh_script_progression --message="Upgrading PHP-FPM configuration..."
 
-# Create a dedicated php-fpm config
+# Create a dedicated PHP-FPM config
 ynh_add_fpm_config --usage=low --footprint=low --package="$extra_php_dependencies"
-phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # SPECIFIC UPGRADE
@@ -118,16 +142,34 @@ ynh_script_progression --message="Installating composer and dependencies..."
 
 ynh_install_composer --phpversion="$phpversion" --workdir="$final_path"
 
+if [[ -f "$final_path/config/config.ini.php" ]]; then
+	pushd "$final_path"
+		ynh_exec_as $app ./console core:update
+	popd
+fi
+
+#=================================================
+# INSTALL MISSING ICONS
+#=================================================
+
+if [ ! "$(ls -A "$final_path/plugins/Morpheus/icons")" ]
+then
+    ynh_setup_source --dest_dir="$final_path/plugins/Morpheus/icons" --source_id="icons"
+    chmod -R 755 "$final_path/plugins/Morpheus"
+fi
+
 #=================================================
 # SETUP A CRON
 #=================================================
 ynh_script_progression --message="Setuping a cron..."
 
-ynh_replace_string  --match_string="YNH_WWW_PATH" --replace_string="$final_path" --target_file="../conf/cron"
-ynh_replace_string --match_string="__USER__" --replace_string="$app" --target_file="../conf/cron"
-ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="../conf/cron"
-ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="../conf/cron"
-cp -f ../conf/cron /etc/cron.d/$app
+cp ../conf/cron /etc/cron.d/$app
+
+ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="/etc/cron.d/$app"
+ynh_replace_string --match_string="__PHPVERSION__" --replace_string="$phpversion" --target_file="/etc/cron.d/$app"
 
 #=================================================
 # GENERIC FINALIZATION