diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a872e86..c309ba50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,11 +12,15 @@ The **patch** part changes incrementally at each release.
 
 ### Added
 
+* dovecot: Update munin plugin & configure it
 * nextcloud: New role to setup a nextcloud instance
+* redis: variable to force use of port 6379 in instances mode
 * lxc-php: Allow php containers to contact local MySQL with localhost
 
 ### Changed
 
+* evoacme: Don't ignore hooks with . in the name (ignore when it's ".disable")
+
 ### Fixed
 
 ### Removed
diff --git a/dovecot/files/munin_config b/dovecot/files/munin_config
new file mode 100644
index 00000000..1a0553d8
--- /dev/null
+++ b/dovecot/files/munin_config
@@ -0,0 +1,2 @@
+[dovecot]
+group adm
diff --git a/dovecot/files/munin_plugin b/dovecot/files/munin_plugin
index e5a6d1d1..f12c2b04 100755
--- a/dovecot/files/munin_plugin
+++ b/dovecot/files/munin_plugin
@@ -2,21 +2,22 @@
 #
 # Munin Plugin
 # to count logins to your dovecot mailserver
-# 
+#
 # Created by Dominik Schulz <lkml@ds.gauner.org>
 # http://developer.gauner.org/munin/
 # Contributions by:
 # - Stephane Enten <tuf@delyth.net>
 # - Steve Schnepp <steve.schnepp@pwkf.org>
-# 
+# - pcy <pcy@ulyssis.org> (make 'Connected Users' DERIVE, check existence of logfile in autoconf)
+#
 # Parameters understood:
 #
 #	config		(required)
 #	autoconf 	(optional - used by munin-config)
-# 
+#
 # Config variables:
 #
-#       logfile      - Where to find the syslog file
+#       logfile        - Where to find the syslog file
 #
 # Add the following line to a file in /etc/munin/plugin-conf.d:
 # 	env.logfile /var/log/your/logfile.log
@@ -34,13 +35,13 @@ LOGFILE=${logfile:-/var/log/mail.log}
 ######################
 
 if [ "$1" = "autoconf" ]; then
-	echo yes
+	[ -f "$LOGFILE" ] && echo yes || echo "no (logfile $LOGFILE not found)"
 	exit 0
 fi
 
 if [ "$1" = "config" ]; then
 	echo 'graph_title Dovecot Logins'
-	echo 'graph_category Mail'
+	echo 'graph_category mail'
 	echo 'graph_args --base 1000 -l 0'
 	echo 'graph_vlabel Login Counters'
 
@@ -53,6 +54,7 @@ if [ "$1" = "config" ]; then
 	done
 
 	echo 'connected.label Connected Users'
+	echo "connected.type DERIVE"
 
 	exit 0
 fi
@@ -86,7 +88,7 @@ echo -n
 echo -en "login_tls.value "
 VALUE=$(egrep -c '[dovecot]?.*Login.*TLS' $LOGFILE)
 if [ ! -z "$VALUE" ]; then
-        echo "$VALUE"
+	echo "$VALUE"
 else
 	echo "0"
 fi
@@ -97,7 +99,7 @@ echo -n
 echo -en "login_ssl.value "
 VALUE=$(egrep -c '[dovecot]?.*Login.*SSL' $LOGFILE)
 if [ ! -z "$VALUE" ]; then
-        echo "$VALUE"
+	echo "$VALUE"
 else
 	echo "0"
 fi
@@ -108,7 +110,7 @@ echo -n
 echo -en "login_imap.value "
 VALUE=$(egrep -c '[dovecot]?.*imap.*Login' $LOGFILE)
 if [ ! -z "$VALUE" ]; then
-        echo "$VALUE"
+	echo "$VALUE"
 else
 	echo "0"
 fi
@@ -119,7 +121,7 @@ echo -n
 echo -en "login_pop3.value "
 VALUE=$(egrep -c '[dovecot]?.*pop3.*Login' $LOGFILE)
 if [ ! -z "$VALUE" ]; then
-        echo "$VALUE"
+	echo "$VALUE"
 else
 	echo "0"
 fi
diff --git a/dovecot/tasks/munin.yml b/dovecot/tasks/munin.yml
index 21d17519..c6b58d28 100644
--- a/dovecot/tasks/munin.yml
+++ b/dovecot/tasks/munin.yml
@@ -14,8 +14,10 @@
         dest: /etc/munin/plugins/dovecot
         mode: "0755"
 
-# TODO : add in /etc/munin/plugin-conf.d/munin-node
-# [dovecot]
-# group adm
+    - name: Install munin config
+      copy:
+        src: munin_config
+        dest: /etc/munin/plugin-conf.d/dovecot
+        mode: "0644"
 
   when: munin_node_plugins_config.stat.exists
diff --git a/evoacme/files/evoacme.sh b/evoacme/files/evoacme.sh
index e8330748..6db0cab7 100755
--- a/evoacme/files/evoacme.sh
+++ b/evoacme/files/evoacme.sh
@@ -287,7 +287,7 @@ main() {
     # search for files in hooks directory
     for hook in $(find ${HOOKS_DIR} -type f -executable | sort); do
         # keep only executables files, not containing a "."
-        if [ -x "${hook}" ] && (basename "${hook}" | grep -vqF "."); then
+        if [ -x "${hook}" ] && (basename "${hook}" | grep -vqF ".disable"); then
             debug "Executing ${hook}"
             ${hook}
         fi
diff --git a/redis/defaults/main.yml b/redis/defaults/main.yml
index 6fc0b4c3..5cd311ce 100644
--- a/redis/defaults/main.yml
+++ b/redis/defaults/main.yml
@@ -3,6 +3,8 @@ redis_systemd_name: redis-server
 
 redis_conf_dir_prefix: /etc/redis
 
+redis_force_instance_port: False
+
 redis_port: 6379
 redis_bind_interface: 127.0.0.1
 
diff --git a/redis/tasks/instance-server.yml b/redis/tasks/instance-server.yml
index 6437567c..5f4b2601 100644
--- a/redis/tasks/instance-server.yml
+++ b/redis/tasks/instance-server.yml
@@ -5,6 +5,7 @@
     that:
       - redis_port != 6379
     msg: "If you want to use port 6379, use the default instance, not a named instance."
+  when: not redis_force_instance_port
 
 - name: "Instance '{{ redis_instance_name }}' group is present"
   group:
diff --git a/webapps/nextcloud/defaults/main.yml b/webapps/nextcloud/defaults/main.yml
index 0048ca69..cb8b70a0 100644
--- a/webapps/nextcloud/defaults/main.yml
+++ b/webapps/nextcloud/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 nextcloud_webserver: 'nginx'
-nextcloud_version: "19.0.0"
+nextcloud_version: "20.0.0"
 nextcloud_archive_name: "nextcloud-{{ nextcloud_version }}.tar.bz2"
 nextcloud_releases_baseurl: "https://download.nextcloud.com/server/releases/"