diff --git a/README.md b/README.md
index 790d139..b8e537b 100644
--- a/README.md
+++ b/README.md
@@ -5,9 +5,9 @@ Nextcloud for YunoHost
 own data. A personal cloud which run on your own server. With Nextcloud
 you can synchronize your files over your devices.
 
-**Shipped version:** 11.0.3
+**Shipped version:** 12.0.0
 
-[![Install Nextcloud with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=nextcloud)
+![Install Nextcloud with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=nextcloud)
 
 ![](https://github.com/nextcloud/screenshots/blob/master/files/filelist.png)
 
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 445eca8..82c54ad 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -15,7 +15,6 @@ location ^~ #LOCATION# {
   # Add headers to serve security related headers
   add_header Strict-Transport-Security "max-age=15768000;";
   add_header X-Content-Type-Options nosniff;
-  add_header X-Frame-Options "SAMEORIGIN";
   add_header X-XSS-Protection "1; mode=block";
   add_header X-Robots-Tag none;
   add_header X-Download-Options noopen;
@@ -77,7 +76,6 @@ location ^~ #LOCATION# {
     # Add headers to serve security related headers
     add_header Strict-Transport-Security "max-age=15768000;";
     add_header X-Content-Type-Options nosniff;
-    add_header X-Frame-Options "SAMEORIGIN";
     add_header X-XSS-Protection "1; mode=block";
     add_header X-Robots-Tag none;
     add_header X-Download-Options noopen;
diff --git a/conf/php-fpm.ini b/conf/php-fpm.ini
new file mode 100644
index 0000000..104f242
--- /dev/null
+++ b/conf/php-fpm.ini
@@ -0,0 +1,7 @@
+opcache.enable=1
+opcache.enable_cli=1
+opcache.interned_strings_buffer=8
+opcache.max_accelerated_files=10000
+opcache.memory_consumption=128
+opcache.save_comments=1
+opcache.revalidate_freq=1
diff --git a/manifest.json b/manifest.json
index a0c754c..324f3a3 100644
--- a/manifest.json
+++ b/manifest.json
@@ -8,7 +8,7 @@
     },
     "url": "https://nextcloud.com",
     "license": "AGPL-3",
-    "version": "11.0.3",
+    "version": "12.0.0",
     "maintainer": {
         "name": "-",
         "email": "-"
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 5f85ebc..f9e5d2f 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -190,4 +190,85 @@ ynh_remove_logrotate () {
 	if [ -e "/etc/logrotate.d/$app" ]; then
 		sudo rm "/etc/logrotate.d/$app"
 	fi
-}
\ No newline at end of file
+}
+
+# Calculate and store a file checksum into the app settings
+#
+# $app should be defined when calling this helper
+#
+# usage: ynh_store_file_checksum file
+# | arg: file - The file on which the checksum will performed, then stored.
+ynh_store_file_checksum () {
+	local checksum_setting_name=checksum_${1//[\/ ]/_}	# Replace all '/' and ' ' by '_'
+	ynh_app_setting_set $app $checksum_setting_name $(sudo md5sum "$1" | cut -d' ' -f1)
+}
+
+# Verify the checksum and backup the file if it's different
+# This helper is primarily meant to allow to easily backup personalised/manually 
+# modified config files.
+#
+# $app should be defined when calling this helper
+#
+# usage: ynh_backup_if_checksum_is_different file [compress]
+# | arg: file - The file on which the checksum test will be perfomed.
+# | arg: compress - 1 to compress the backup instead of a simple copy
+# A compression is needed for a file which will be analyzed even if its name is different.
+#
+# | ret: Return the name a the backup file, or nothing
+ynh_backup_if_checksum_is_different () {
+	local file=$1
+	local compress_backup=${2:-0}	# If $2 is empty, compress_backup will set at 0
+	local checksum_setting_name=checksum_${file//[\/ ]/_}	# Replace all '/' and ' ' by '_'
+	local checksum_value=$(ynh_app_setting_get $app $checksum_setting_name)
+	if [ -n "$checksum_value" ]
+	then	# Proceed only if a value was stored into the app settings
+		if ! echo "$checksum_value $file" | sudo md5sum -c --status
+		then	# If the checksum is now different
+			backup_file="$file.backup.$(date '+%d.%m.%y_%Hh%M,%Ss')"
+			if [ $compress_backup -eq 1 ]
+			then
+				sudo tar --create --gzip --file "$backup_file.tar.gz" "$file"	# Backup the current file and compress
+				backup_file="$backup_file.tar.gz"
+			else
+				sudo cp -a "$file" "$backup_file"	# Backup the current file
+			fi
+			echo "File $file has been manually modified since the installation or last upgrade. So it has been duplicated in $backup_file" >&2
+			echo "$backup_file"	# Return the name of the backup file
+		fi
+	fi
+}
+
+
+# Create a dedicated php-fpm config
+final_path=$1
+# usage: ynh_add_fpm_config
+ynh_add_fpm_config () {
+	finalphpconf="/etc/php5/fpm/pool.d/$app.conf"
+	ynh_backup_if_checksum_is_different "$finalphpconf" 1
+	sudo cp ../conf/php-fpm.conf "$finalphpconf"
+	ynh_replace_string "__NAMETOCHANGE__" "$app" "$finalphpconf"
+	ynh_replace_string "__FINALPATH__" "$final_path" "$finalphpconf"
+	ynh_replace_string "__USER__" "$app" "$finalphpconf"
+	sudo chown root: "$finalphpconf"
+	ynh_store_file_checksum "$finalphpconf"
+
+	if [ -e "../conf/php-fpm.ini" ]
+	then
+		finalphpini="/etc/php5/fpm/conf.d/20-$app.ini"
+		ynh_backup_if_checksum_is_different "$finalphpini" 1
+		sudo cp ../conf/php-fpm.ini "$finalphpini"
+		sudo chown root: "$finalphpini"
+		ynh_store_file_checksum "$finalphpini"
+	fi
+
+	sudo systemctl reload php5-fpm
+}
+
+# Remove the dedicated php-fpm config
+#
+# usage: ynh_remove_fpm_config
+ynh_remove_fpm_config () {
+	ynh_secure_remove "/etc/php5/fpm/pool.d/$app.conf"
+	ynh_secure_remove "/etc/php5/fpm/conf.d/20-$app.ini" 2>&1
+	sudo systemctl reload php5-fpm
+}
diff --git a/scripts/install b/scripts/install
index bc56e53..5cc4140 100755
--- a/scripts/install
+++ b/scripts/install
@@ -94,6 +94,7 @@ sed -i "s@#DESTDIR#@${DESTDIR}/@g" ../conf/php-fpm.conf
 sudo cp ../conf/php-fpm.conf "$phpfpm_conf"
 sudo chown root: $phpfpm_conf
 sudo chmod 644 $phpfpm_conf
+ynh_add_fpm_config
 
 # occ helper for the current installation
 _exec_occ() {
@@ -188,4 +189,4 @@ sudo chmod 644 "$cron_path"
 _exec_occ background:cron
 
 # Setup log rotation
-ynh_use_logrotate "/home/yunohost.app/nextcloud/data/nextcloud.log"
\ No newline at end of file
+ynh_use_logrotate "/home/yunohost.app/nextcloud/data/nextcloud.log"
diff --git a/scripts/upgrade b/scripts/upgrade
index 22c169f..1ea8297 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -127,6 +127,7 @@ sed -i "s@#DESTDIR#@${DESTDIR}/@g" ../conf/php-fpm.conf
 sudo cp ../conf/php-fpm.conf "$phpfpm_conf"
 sudo chown root: $phpfpm_conf
 sudo chmod 644 $phpfpm_conf
+ynh_add_fpm_config
 
 # Set system group in hooks
 sed -i "s@#GROUP#@${app}@g" ../hooks/post_user_create
diff --git a/scripts/upgrade.d/upgrade.11.sh b/scripts/upgrade.d/upgrade.11.sh
new file mode 100755
index 0000000..33419d6
--- /dev/null
+++ b/scripts/upgrade.d/upgrade.11.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Version cible de la mise à jour de Nextcloud
+VERSION="12.0.0"
+
+# Nextcloud tarball checksum
+NEXTCLOUD_SOURCE_SHA256="1b9d9cf05e657cd564a552b418fbf42d669ca51e0fd1f1f118fe44cbf93a243f"
+
+# Load common variables and helpers
+source ./_common.sh
+
+# Source app helpers
+source /usr/share/yunohost/helpers
+
+# Load common upgrade function
+source ./upgrade.d/upgrade.generic.sh
+
+COMMON_UPGRADE # Met à jour Nextcloud vers la version suivante
diff --git a/scripts/upgrade.d/upgrade.generic.sh b/scripts/upgrade.d/upgrade.generic.sh
index 16f3307..cd09b99 100755
--- a/scripts/upgrade.d/upgrade.generic.sh
+++ b/scripts/upgrade.d/upgrade.generic.sh
@@ -17,9 +17,11 @@ COMMON_UPGRADE () {
 
 	# Retrieve new Nextcloud sources in a temporary directory
 	TMPDIR=$(mktemp -d)
+
+	# Set temp folder ownership
 	sudo chown -R $app: "$TMPDIR"
 	extract_nextcloud "$TMPDIR"	"$app" # Télécharge nextcloud, vérifie sa somme de contrôle et le décompresse.
-  
+
 	# Copy Nextcloud configuration file
 	sed -i "s@#DOMAIN#@${domain}@g" ../conf/config.json
 	sed -i "s@#DATADIR#@${DATADIR}@g" ../conf/config.json
diff --git a/scripts/upgrade.d/upgrade.last.sh b/scripts/upgrade.d/upgrade.last.sh
index 08bf50b..d8874f5 100755
--- a/scripts/upgrade.d/upgrade.last.sh
+++ b/scripts/upgrade.d/upgrade.last.sh
@@ -1,10 +1,10 @@
 #!/bin/bash
 
 # Version cible de la mise à jour de Nextcloud
-VERSION=11.0.3
+VERSION=12.0.0
 
 # Nextcloud tarball checksum sha256
-NEXTCLOUD_SOURCE_SHA256=28d5ee39f31c6be20f037ad2eb300272ad9bb72a7d428eb0152c7a3fde87d545
+NEXTCLOUD_SOURCE_SHA256=1b9d9cf05e657cd564a552b418fbf42d669ca51e0fd1f1f118fe44cbf93a243f
 
 # Load common variables and helpers
 source ./_common.sh