diff --git a/10.0/apache/Dockerfile b/10.0/apache/Dockerfile
index 3798deb..570aef6 100644
--- a/10.0/apache/Dockerfile
+++ b/10.0/apache/Dockerfile
@@ -1,6 +1,7 @@
 FROM php:5.6-apache
 
 RUN apt-get update && apt-get install -y \
+  rsync \
   bzip2 \
   libcurl4-openssl-dev \
   libfreetype6-dev \
@@ -52,9 +53,22 @@ RUN curl -fsSL -o nextcloud.tar.bz2 \
  && gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2 \
  && rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc \
  && tar -xjf nextcloud.tar.bz2 -C /usr/src/ \
- && rm nextcloud.tar.bz2
+ && rm nextcloud.tar.bz2 \
+ && rm -rf /usr/src/nextcloud/updater \
+ # https://docs.nextcloud.com/server/11/admin_manual/installation/installation_wizard.html#setting-strong-directory-permissions
+ && mkdir -p /usr/src/nextcloud/data \
+ && mkdir -p /usr/src/nextcloud/custom_apps \
+ && find /usr/src/nextcloud/ -type f -print0 | xargs -0 chmod 0640 \
+ && find /usr/src/nextcloud/ -type d -print0 | xargs -0 chmod 0750 \
+ && chown -R root:www-data /usr/src/nextcloud/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/custom_apps/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/config/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/data/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/themes/ \
+ && chmod +x /usr/src/nextcloud/occ
 
 COPY docker-entrypoint.sh /entrypoint.sh
+COPY apps.config.php /usr/src/nextcloud/config/apps.config.php
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["apache2-foreground"]
diff --git a/10.0/apache/apps.config.php b/10.0/apache/apps.config.php
new file mode 100644
index 0000000..a4bed83
--- /dev/null
+++ b/10.0/apache/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$CONFIG = array (
+  "apps_paths" => array (
+      0 => array (
+              "path"     => OC::$SERVERROOT."/apps",
+              "url"      => "/apps",
+              "writable" => false,
+      ),
+      1 => array (
+              "path"     => OC::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/10.0/apache/docker-entrypoint.sh b/10.0/apache/docker-entrypoint.sh
index 62d1625..b2bf65e 100755
--- a/10.0/apache/docker-entrypoint.sh
+++ b/10.0/apache/docker-entrypoint.sh
@@ -1,9 +1,50 @@
 #!/bin/bash
 set -e
 
-if [ ! -e '/var/www/html/version.php' ]; then
-    tar cf - --one-file-system -C /usr/src/nextcloud . | tar xf -
-    chown -R www-data /var/www/html
+# version_greater A B returns whether A > B
+function version_greater() {
+	[[ "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1" ]];
+}
+
+installed_version="0.0.0~unknown"
+if [ -f /var/www/html/version.php ]; then
+    installed_version=$(php -r 'require "/var/www/html/version.php"; echo "$OC_VersionString";')
+fi
+image_version=$(php -r 'require "/usr/src/nextcloud/version.php"; echo "$OC_VersionString";')
+
+if version_greater "$installed_version" "$image_version"; then
+    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+    exit 1
+fi
+
+if version_greater "$image_version" "$installed_version"; then
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_before
+    fi
+
+    rsync -a --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ /usr/src/nextcloud/ /var/www/html/
+
+    if [ ! -d /var/www/html/config ]; then
+        cp -arT /usr/src/nextcloud/config /var/www/html/config
+    fi
+
+    if [ ! -d /var/www/html/data ]; then
+        cp -arT /usr/src/nextcloud/data /var/www/html/data
+    fi
+
+    if [ ! -d /var/www/html/custom_apps ]; then
+        cp -arT /usr/src/nextcloud/custom_apps /var/www/html/custom_apps
+        cp -a /usr/src/nextcloud/config/apps.config.php /var/www/html/config/apps.config.php
+    fi
+
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ upgrade --no-app-disable'
+
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_after
+        echo "The following apps have beed disabled:"
+        diff <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_before) <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_after) | grep '<' | cut -d- -f2 | cut -d: -f1
+        rm -f /tmp/list_before /tmp/list_after
+    fi
 fi
 
 exec "$@"
diff --git a/10.0/fpm/Dockerfile b/10.0/fpm/Dockerfile
index 5619a17..b60b57f 100644
--- a/10.0/fpm/Dockerfile
+++ b/10.0/fpm/Dockerfile
@@ -1,6 +1,7 @@
 FROM php:5.6-fpm
 
 RUN apt-get update && apt-get install -y \
+  rsync \
   bzip2 \
   libcurl4-openssl-dev \
   libfreetype6-dev \
@@ -50,9 +51,22 @@ RUN curl -fsSL -o nextcloud.tar.bz2 \
  && gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2 \
  && rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc \
  && tar -xjf nextcloud.tar.bz2 -C /usr/src/ \
- && rm nextcloud.tar.bz2
+ && rm nextcloud.tar.bz2 \
+ && rm -rf /usr/src/nextcloud/updater \
+ # https://docs.nextcloud.com/server/11/admin_manual/installation/installation_wizard.html#setting-strong-directory-permissions
+ && mkdir -p /usr/src/nextcloud/data \
+ && mkdir -p /usr/src/nextcloud/custom_apps \
+ && find /usr/src/nextcloud/ -type f -print0 | xargs -0 chmod 0640 \
+ && find /usr/src/nextcloud/ -type d -print0 | xargs -0 chmod 0750 \
+ && chown -R root:www-data /usr/src/nextcloud/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/custom_apps/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/config/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/data/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/themes/ \
+ && chmod +x /usr/src/nextcloud/occ
 
 COPY docker-entrypoint.sh /entrypoint.sh
+COPY apps.config.php /usr/src/nextcloud/config/apps.config.php
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["php-fpm"]
diff --git a/10.0/fpm/apps.config.php b/10.0/fpm/apps.config.php
new file mode 100644
index 0000000..a4bed83
--- /dev/null
+++ b/10.0/fpm/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$CONFIG = array (
+  "apps_paths" => array (
+      0 => array (
+              "path"     => OC::$SERVERROOT."/apps",
+              "url"      => "/apps",
+              "writable" => false,
+      ),
+      1 => array (
+              "path"     => OC::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/10.0/fpm/docker-entrypoint.sh b/10.0/fpm/docker-entrypoint.sh
index 62d1625..b2bf65e 100755
--- a/10.0/fpm/docker-entrypoint.sh
+++ b/10.0/fpm/docker-entrypoint.sh
@@ -1,9 +1,50 @@
 #!/bin/bash
 set -e
 
-if [ ! -e '/var/www/html/version.php' ]; then
-    tar cf - --one-file-system -C /usr/src/nextcloud . | tar xf -
-    chown -R www-data /var/www/html
+# version_greater A B returns whether A > B
+function version_greater() {
+	[[ "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1" ]];
+}
+
+installed_version="0.0.0~unknown"
+if [ -f /var/www/html/version.php ]; then
+    installed_version=$(php -r 'require "/var/www/html/version.php"; echo "$OC_VersionString";')
+fi
+image_version=$(php -r 'require "/usr/src/nextcloud/version.php"; echo "$OC_VersionString";')
+
+if version_greater "$installed_version" "$image_version"; then
+    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+    exit 1
+fi
+
+if version_greater "$image_version" "$installed_version"; then
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_before
+    fi
+
+    rsync -a --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ /usr/src/nextcloud/ /var/www/html/
+
+    if [ ! -d /var/www/html/config ]; then
+        cp -arT /usr/src/nextcloud/config /var/www/html/config
+    fi
+
+    if [ ! -d /var/www/html/data ]; then
+        cp -arT /usr/src/nextcloud/data /var/www/html/data
+    fi
+
+    if [ ! -d /var/www/html/custom_apps ]; then
+        cp -arT /usr/src/nextcloud/custom_apps /var/www/html/custom_apps
+        cp -a /usr/src/nextcloud/config/apps.config.php /var/www/html/config/apps.config.php
+    fi
+
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ upgrade --no-app-disable'
+
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_after
+        echo "The following apps have beed disabled:"
+        diff <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_before) <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_after) | grep '<' | cut -d- -f2 | cut -d: -f1
+        rm -f /tmp/list_before /tmp/list_after
+    fi
 fi
 
 exec "$@"
diff --git a/11.0/apache/Dockerfile b/11.0/apache/Dockerfile
index c0a522b..3ba14c7 100644
--- a/11.0/apache/Dockerfile
+++ b/11.0/apache/Dockerfile
@@ -1,6 +1,7 @@
 FROM php:7.1-apache
 
 RUN apt-get update && apt-get install -y \
+  rsync \
   bzip2 \
   libcurl4-openssl-dev \
   libfreetype6-dev \
@@ -52,9 +53,22 @@ RUN curl -fsSL -o nextcloud.tar.bz2 \
  && gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2 \
  && rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc \
  && tar -xjf nextcloud.tar.bz2 -C /usr/src/ \
- && rm nextcloud.tar.bz2
+ && rm nextcloud.tar.bz2 \
+ && rm -rf /usr/src/nextcloud/updater \
+ # https://docs.nextcloud.com/server/11/admin_manual/installation/installation_wizard.html#setting-strong-directory-permissions
+ && mkdir -p /usr/src/nextcloud/data \
+ && mkdir -p /usr/src/nextcloud/custom_apps \
+ && find /usr/src/nextcloud/ -type f -print0 | xargs -0 chmod 0640 \
+ && find /usr/src/nextcloud/ -type d -print0 | xargs -0 chmod 0750 \
+ && chown -R root:www-data /usr/src/nextcloud/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/custom_apps/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/config/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/data/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/themes/ \
+ && chmod +x /usr/src/nextcloud/occ
 
 COPY docker-entrypoint.sh /entrypoint.sh
+COPY apps.config.php /usr/src/nextcloud/config/apps.config.php
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["apache2-foreground"]
diff --git a/11.0/apache/apps.config.php b/11.0/apache/apps.config.php
new file mode 100644
index 0000000..a4bed83
--- /dev/null
+++ b/11.0/apache/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$CONFIG = array (
+  "apps_paths" => array (
+      0 => array (
+              "path"     => OC::$SERVERROOT."/apps",
+              "url"      => "/apps",
+              "writable" => false,
+      ),
+      1 => array (
+              "path"     => OC::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/11.0/apache/docker-entrypoint.sh b/11.0/apache/docker-entrypoint.sh
index 62d1625..b2bf65e 100755
--- a/11.0/apache/docker-entrypoint.sh
+++ b/11.0/apache/docker-entrypoint.sh
@@ -1,9 +1,50 @@
 #!/bin/bash
 set -e
 
-if [ ! -e '/var/www/html/version.php' ]; then
-    tar cf - --one-file-system -C /usr/src/nextcloud . | tar xf -
-    chown -R www-data /var/www/html
+# version_greater A B returns whether A > B
+function version_greater() {
+	[[ "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1" ]];
+}
+
+installed_version="0.0.0~unknown"
+if [ -f /var/www/html/version.php ]; then
+    installed_version=$(php -r 'require "/var/www/html/version.php"; echo "$OC_VersionString";')
+fi
+image_version=$(php -r 'require "/usr/src/nextcloud/version.php"; echo "$OC_VersionString";')
+
+if version_greater "$installed_version" "$image_version"; then
+    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+    exit 1
+fi
+
+if version_greater "$image_version" "$installed_version"; then
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_before
+    fi
+
+    rsync -a --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ /usr/src/nextcloud/ /var/www/html/
+
+    if [ ! -d /var/www/html/config ]; then
+        cp -arT /usr/src/nextcloud/config /var/www/html/config
+    fi
+
+    if [ ! -d /var/www/html/data ]; then
+        cp -arT /usr/src/nextcloud/data /var/www/html/data
+    fi
+
+    if [ ! -d /var/www/html/custom_apps ]; then
+        cp -arT /usr/src/nextcloud/custom_apps /var/www/html/custom_apps
+        cp -a /usr/src/nextcloud/config/apps.config.php /var/www/html/config/apps.config.php
+    fi
+
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ upgrade --no-app-disable'
+
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_after
+        echo "The following apps have beed disabled:"
+        diff <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_before) <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_after) | grep '<' | cut -d- -f2 | cut -d: -f1
+        rm -f /tmp/list_before /tmp/list_after
+    fi
 fi
 
 exec "$@"
diff --git a/11.0/fpm/Dockerfile b/11.0/fpm/Dockerfile
index fa31bfb..0b86d16 100644
--- a/11.0/fpm/Dockerfile
+++ b/11.0/fpm/Dockerfile
@@ -1,6 +1,7 @@
 FROM php:7.1-fpm
 
 RUN apt-get update && apt-get install -y \
+  rsync \
   bzip2 \
   libcurl4-openssl-dev \
   libfreetype6-dev \
@@ -50,9 +51,22 @@ RUN curl -fsSL -o nextcloud.tar.bz2 \
  && gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2 \
  && rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc \
  && tar -xjf nextcloud.tar.bz2 -C /usr/src/ \
- && rm nextcloud.tar.bz2
+ && rm nextcloud.tar.bz2 \
+ && rm -rf /usr/src/nextcloud/updater \
+ # https://docs.nextcloud.com/server/11/admin_manual/installation/installation_wizard.html#setting-strong-directory-permissions
+ && mkdir -p /usr/src/nextcloud/data \
+ && mkdir -p /usr/src/nextcloud/custom_apps \
+ && find /usr/src/nextcloud/ -type f -print0 | xargs -0 chmod 0640 \
+ && find /usr/src/nextcloud/ -type d -print0 | xargs -0 chmod 0750 \
+ && chown -R root:www-data /usr/src/nextcloud/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/custom_apps/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/config/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/data/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/themes/ \
+ && chmod +x /usr/src/nextcloud/occ
 
 COPY docker-entrypoint.sh /entrypoint.sh
+COPY apps.config.php /usr/src/nextcloud/config/apps.config.php
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["php-fpm"]
diff --git a/11.0/fpm/apps.config.php b/11.0/fpm/apps.config.php
new file mode 100644
index 0000000..a4bed83
--- /dev/null
+++ b/11.0/fpm/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$CONFIG = array (
+  "apps_paths" => array (
+      0 => array (
+              "path"     => OC::$SERVERROOT."/apps",
+              "url"      => "/apps",
+              "writable" => false,
+      ),
+      1 => array (
+              "path"     => OC::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/11.0/fpm/docker-entrypoint.sh b/11.0/fpm/docker-entrypoint.sh
index 62d1625..b2bf65e 100755
--- a/11.0/fpm/docker-entrypoint.sh
+++ b/11.0/fpm/docker-entrypoint.sh
@@ -1,9 +1,50 @@
 #!/bin/bash
 set -e
 
-if [ ! -e '/var/www/html/version.php' ]; then
-    tar cf - --one-file-system -C /usr/src/nextcloud . | tar xf -
-    chown -R www-data /var/www/html
+# version_greater A B returns whether A > B
+function version_greater() {
+	[[ "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1" ]];
+}
+
+installed_version="0.0.0~unknown"
+if [ -f /var/www/html/version.php ]; then
+    installed_version=$(php -r 'require "/var/www/html/version.php"; echo "$OC_VersionString";')
+fi
+image_version=$(php -r 'require "/usr/src/nextcloud/version.php"; echo "$OC_VersionString";')
+
+if version_greater "$installed_version" "$image_version"; then
+    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+    exit 1
+fi
+
+if version_greater "$image_version" "$installed_version"; then
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_before
+    fi
+
+    rsync -a --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ /usr/src/nextcloud/ /var/www/html/
+
+    if [ ! -d /var/www/html/config ]; then
+        cp -arT /usr/src/nextcloud/config /var/www/html/config
+    fi
+
+    if [ ! -d /var/www/html/data ]; then
+        cp -arT /usr/src/nextcloud/data /var/www/html/data
+    fi
+
+    if [ ! -d /var/www/html/custom_apps ]; then
+        cp -arT /usr/src/nextcloud/custom_apps /var/www/html/custom_apps
+        cp -a /usr/src/nextcloud/config/apps.config.php /var/www/html/config/apps.config.php
+    fi
+
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ upgrade --no-app-disable'
+
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_after
+        echo "The following apps have beed disabled:"
+        diff <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_before) <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_after) | grep '<' | cut -d- -f2 | cut -d: -f1
+        rm -f /tmp/list_before /tmp/list_after
+    fi
 fi
 
 exec "$@"
diff --git a/9.0/apache/Dockerfile b/9.0/apache/Dockerfile
index 56d4616..07ede26 100644
--- a/9.0/apache/Dockerfile
+++ b/9.0/apache/Dockerfile
@@ -1,6 +1,7 @@
 FROM php:5.6-apache
 
 RUN apt-get update && apt-get install -y \
+  rsync \
   bzip2 \
   libcurl4-openssl-dev \
   libfreetype6-dev \
@@ -52,9 +53,26 @@ RUN curl -fsSL -o nextcloud.tar.bz2 \
  && gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2 \
  && rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc \
  && tar -xjf nextcloud.tar.bz2 -C /usr/src/ \
- && rm nextcloud.tar.bz2
+ && rm nextcloud.tar.bz2 \
+ && rm -rf /usr/src/nextcloud/updater \
+ # https://docs.nextcloud.com/server/11/admin_manual/installation/installation_wizard.html#setting-strong-directory-permissions
+ && mkdir -p /usr/src/nextcloud/data \
+ && mkdir -p /usr/src/nextcloud/custom_apps \
+ # only used in nextcloud 9 (assets)
+ && mkdir -p /usr/src/nextcloud/assets \
+ && find /usr/src/nextcloud/ -type f -print0 | xargs -0 chmod 0640 \
+ && find /usr/src/nextcloud/ -type d -print0 | xargs -0 chmod 0750 \
+ && chown -R root:www-data /usr/src/nextcloud/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/custom_apps/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/config/ \
+ # only used in nextcloud 9 (assets)
+ && chown -R www-data:www-data /usr/src/nextcloud/assets/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/data/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/themes/ \
+ && chmod +x /usr/src/nextcloud/occ
 
 COPY docker-entrypoint.sh /entrypoint.sh
+COPY apps.config.php /usr/src/nextcloud/config/apps.config.php
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["apache2-foreground"]
diff --git a/9.0/apache/apps.config.php b/9.0/apache/apps.config.php
new file mode 100644
index 0000000..a4bed83
--- /dev/null
+++ b/9.0/apache/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$CONFIG = array (
+  "apps_paths" => array (
+      0 => array (
+              "path"     => OC::$SERVERROOT."/apps",
+              "url"      => "/apps",
+              "writable" => false,
+      ),
+      1 => array (
+              "path"     => OC::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/9.0/apache/docker-entrypoint.sh b/9.0/apache/docker-entrypoint.sh
index 62d1625..b2bf65e 100755
--- a/9.0/apache/docker-entrypoint.sh
+++ b/9.0/apache/docker-entrypoint.sh
@@ -1,9 +1,50 @@
 #!/bin/bash
 set -e
 
-if [ ! -e '/var/www/html/version.php' ]; then
-    tar cf - --one-file-system -C /usr/src/nextcloud . | tar xf -
-    chown -R www-data /var/www/html
+# version_greater A B returns whether A > B
+function version_greater() {
+	[[ "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1" ]];
+}
+
+installed_version="0.0.0~unknown"
+if [ -f /var/www/html/version.php ]; then
+    installed_version=$(php -r 'require "/var/www/html/version.php"; echo "$OC_VersionString";')
+fi
+image_version=$(php -r 'require "/usr/src/nextcloud/version.php"; echo "$OC_VersionString";')
+
+if version_greater "$installed_version" "$image_version"; then
+    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+    exit 1
+fi
+
+if version_greater "$image_version" "$installed_version"; then
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_before
+    fi
+
+    rsync -a --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ /usr/src/nextcloud/ /var/www/html/
+
+    if [ ! -d /var/www/html/config ]; then
+        cp -arT /usr/src/nextcloud/config /var/www/html/config
+    fi
+
+    if [ ! -d /var/www/html/data ]; then
+        cp -arT /usr/src/nextcloud/data /var/www/html/data
+    fi
+
+    if [ ! -d /var/www/html/custom_apps ]; then
+        cp -arT /usr/src/nextcloud/custom_apps /var/www/html/custom_apps
+        cp -a /usr/src/nextcloud/config/apps.config.php /var/www/html/config/apps.config.php
+    fi
+
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ upgrade --no-app-disable'
+
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_after
+        echo "The following apps have beed disabled:"
+        diff <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_before) <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_after) | grep '<' | cut -d- -f2 | cut -d: -f1
+        rm -f /tmp/list_before /tmp/list_after
+    fi
 fi
 
 exec "$@"
diff --git a/9.0/fpm/Dockerfile b/9.0/fpm/Dockerfile
index 44027c5..fd82cb3 100644
--- a/9.0/fpm/Dockerfile
+++ b/9.0/fpm/Dockerfile
@@ -1,6 +1,7 @@
 FROM php:5.6-fpm
 
 RUN apt-get update && apt-get install -y \
+  rsync \
   bzip2 \
   libcurl4-openssl-dev \
   libfreetype6-dev \
@@ -50,9 +51,26 @@ RUN curl -fsSL -o nextcloud.tar.bz2 \
  && gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2 \
  && rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc \
  && tar -xjf nextcloud.tar.bz2 -C /usr/src/ \
- && rm nextcloud.tar.bz2
+ && rm nextcloud.tar.bz2 \
+ && rm -rf /usr/src/nextcloud/updater \
+ # https://docs.nextcloud.com/server/11/admin_manual/installation/installation_wizard.html#setting-strong-directory-permissions
+ && mkdir -p /usr/src/nextcloud/data \
+ && mkdir -p /usr/src/nextcloud/custom_apps \
+ # only used in nextcloud 9 (assets)
+ && mkdir -p /usr/src/nextcloud/assets \
+ && find /usr/src/nextcloud/ -type f -print0 | xargs -0 chmod 0640 \
+ && find /usr/src/nextcloud/ -type d -print0 | xargs -0 chmod 0750 \
+ && chown -R root:www-data /usr/src/nextcloud/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/custom_apps/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/config/ \
+ # only used in nextcloud 9 (assets)
+ && chown -R www-data:www-data /usr/src/nextcloud/assets/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/data/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/themes/ \
+ && chmod +x /usr/src/nextcloud/occ
 
 COPY docker-entrypoint.sh /entrypoint.sh
+COPY apps.config.php /usr/src/nextcloud/config/apps.config.php
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["php-fpm"]
diff --git a/9.0/fpm/apps.config.php b/9.0/fpm/apps.config.php
new file mode 100644
index 0000000..a4bed83
--- /dev/null
+++ b/9.0/fpm/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$CONFIG = array (
+  "apps_paths" => array (
+      0 => array (
+              "path"     => OC::$SERVERROOT."/apps",
+              "url"      => "/apps",
+              "writable" => false,
+      ),
+      1 => array (
+              "path"     => OC::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/9.0/fpm/docker-entrypoint.sh b/9.0/fpm/docker-entrypoint.sh
index 62d1625..b2bf65e 100755
--- a/9.0/fpm/docker-entrypoint.sh
+++ b/9.0/fpm/docker-entrypoint.sh
@@ -1,9 +1,50 @@
 #!/bin/bash
 set -e
 
-if [ ! -e '/var/www/html/version.php' ]; then
-    tar cf - --one-file-system -C /usr/src/nextcloud . | tar xf -
-    chown -R www-data /var/www/html
+# version_greater A B returns whether A > B
+function version_greater() {
+	[[ "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1" ]];
+}
+
+installed_version="0.0.0~unknown"
+if [ -f /var/www/html/version.php ]; then
+    installed_version=$(php -r 'require "/var/www/html/version.php"; echo "$OC_VersionString";')
+fi
+image_version=$(php -r 'require "/usr/src/nextcloud/version.php"; echo "$OC_VersionString";')
+
+if version_greater "$installed_version" "$image_version"; then
+    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+    exit 1
+fi
+
+if version_greater "$image_version" "$installed_version"; then
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_before
+    fi
+
+    rsync -a --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ /usr/src/nextcloud/ /var/www/html/
+
+    if [ ! -d /var/www/html/config ]; then
+        cp -arT /usr/src/nextcloud/config /var/www/html/config
+    fi
+
+    if [ ! -d /var/www/html/data ]; then
+        cp -arT /usr/src/nextcloud/data /var/www/html/data
+    fi
+
+    if [ ! -d /var/www/html/custom_apps ]; then
+        cp -arT /usr/src/nextcloud/custom_apps /var/www/html/custom_apps
+        cp -a /usr/src/nextcloud/config/apps.config.php /var/www/html/config/apps.config.php
+    fi
+
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ upgrade --no-app-disable'
+
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_after
+        echo "The following apps have beed disabled:"
+        diff <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_before) <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_after) | grep '<' | cut -d- -f2 | cut -d: -f1
+        rm -f /tmp/list_before /tmp/list_after
+    fi
 fi
 
 exec "$@"
diff --git a/Dockerfile-php7.template b/Dockerfile-php7.template
index 6dd989a..345009d 100644
--- a/Dockerfile-php7.template
+++ b/Dockerfile-php7.template
@@ -1,6 +1,7 @@
 FROM php:7.1-%%VARIANT%%
 
 RUN apt-get update && apt-get install -y \
+  rsync \
   bzip2 \
   libcurl4-openssl-dev \
   libfreetype6-dev \
@@ -52,9 +53,26 @@ RUN curl -fsSL -o nextcloud.tar.bz2 \
  && gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2 \
  && rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc \
  && tar -xjf nextcloud.tar.bz2 -C /usr/src/ \
- && rm nextcloud.tar.bz2
+ && rm nextcloud.tar.bz2 \
+ && rm -rf /usr/src/nextcloud/updater \
+ # https://docs.nextcloud.com/server/11/admin_manual/installation/installation_wizard.html#setting-strong-directory-permissions
+ && mkdir -p /usr/src/nextcloud/data \
+ && mkdir -p /usr/src/nextcloud/custom_apps \
+ # only used in nextcloud 9 (assets)
+ && mkdir -p /usr/src/nextcloud/assets \
+ && find /usr/src/nextcloud/ -type f -print0 | xargs -0 chmod 0640 \
+ && find /usr/src/nextcloud/ -type d -print0 | xargs -0 chmod 0750 \
+ && chown -R root:www-data /usr/src/nextcloud/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/custom_apps/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/config/ \
+ # only used in nextcloud 9 (assets)
+ && chown -R www-data:www-data /usr/src/nextcloud/assets/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/data/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/themes/ \
+ && chmod +x /usr/src/nextcloud/occ
 
 COPY docker-entrypoint.sh /entrypoint.sh
+COPY apps.config.php /usr/src/nextcloud/config/apps.config.php
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["%%CMD%%"]
diff --git a/Dockerfile.template b/Dockerfile.template
index 3d71379..24ef5e9 100644
--- a/Dockerfile.template
+++ b/Dockerfile.template
@@ -1,6 +1,7 @@
 FROM php:5.6-%%VARIANT%%
 
 RUN apt-get update && apt-get install -y \
+  rsync \
   bzip2 \
   libcurl4-openssl-dev \
   libfreetype6-dev \
@@ -52,9 +53,26 @@ RUN curl -fsSL -o nextcloud.tar.bz2 \
  && gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2 \
  && rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc \
  && tar -xjf nextcloud.tar.bz2 -C /usr/src/ \
- && rm nextcloud.tar.bz2
+ && rm nextcloud.tar.bz2 \
+ && rm -rf /usr/src/nextcloud/updater \
+ # https://docs.nextcloud.com/server/11/admin_manual/installation/installation_wizard.html#setting-strong-directory-permissions
+ && mkdir -p /usr/src/nextcloud/data \
+ && mkdir -p /usr/src/nextcloud/custom_apps \
+ # only used in nextcloud 9 (assets)
+ && mkdir -p /usr/src/nextcloud/assets \
+ && find /usr/src/nextcloud/ -type f -print0 | xargs -0 chmod 0640 \
+ && find /usr/src/nextcloud/ -type d -print0 | xargs -0 chmod 0750 \
+ && chown -R root:www-data /usr/src/nextcloud/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/custom_apps/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/config/ \
+ # only used in nextcloud 9 (assets)
+ && chown -R www-data:www-data /usr/src/nextcloud/assets/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/data/ \
+ && chown -R www-data:www-data /usr/src/nextcloud/themes/ \
+ && chmod +x /usr/src/nextcloud/occ
 
 COPY docker-entrypoint.sh /entrypoint.sh
+COPY apps.config.php /usr/src/nextcloud/config/apps.config.php
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["%%CMD%%"]
diff --git a/apps.config.php b/apps.config.php
new file mode 100644
index 0000000..a4bed83
--- /dev/null
+++ b/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$CONFIG = array (
+  "apps_paths" => array (
+      0 => array (
+              "path"     => OC::$SERVERROOT."/apps",
+              "url"      => "/apps",
+              "writable" => false,
+      ),
+      1 => array (
+              "path"     => OC::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 62d1625..b2bf65e 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -1,9 +1,50 @@
 #!/bin/bash
 set -e
 
-if [ ! -e '/var/www/html/version.php' ]; then
-    tar cf - --one-file-system -C /usr/src/nextcloud . | tar xf -
-    chown -R www-data /var/www/html
+# version_greater A B returns whether A > B
+function version_greater() {
+	[[ "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1" ]];
+}
+
+installed_version="0.0.0~unknown"
+if [ -f /var/www/html/version.php ]; then
+    installed_version=$(php -r 'require "/var/www/html/version.php"; echo "$OC_VersionString";')
+fi
+image_version=$(php -r 'require "/usr/src/nextcloud/version.php"; echo "$OC_VersionString";')
+
+if version_greater "$installed_version" "$image_version"; then
+    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+    exit 1
+fi
+
+if version_greater "$image_version" "$installed_version"; then
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_before
+    fi
+
+    rsync -a --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ /usr/src/nextcloud/ /var/www/html/
+
+    if [ ! -d /var/www/html/config ]; then
+        cp -arT /usr/src/nextcloud/config /var/www/html/config
+    fi
+
+    if [ ! -d /var/www/html/data ]; then
+        cp -arT /usr/src/nextcloud/data /var/www/html/data
+    fi
+
+    if [ ! -d /var/www/html/custom_apps ]; then
+        cp -arT /usr/src/nextcloud/custom_apps /var/www/html/custom_apps
+        cp -a /usr/src/nextcloud/config/apps.config.php /var/www/html/config/apps.config.php
+    fi
+
+    if [ "$installed_version" != "0.0.0~unknown" ]; then
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ upgrade --no-app-disable'
+
+        su - www-data -s /bin/bash -c 'php /var/www/html/occ app:list' > /tmp/list_after
+        echo "The following apps have beed disabled:"
+        diff <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_before) <(sed -n "/Enabled:/,/Disabled:/p" /tmp/list_after) | grep '<' | cut -d- -f2 | cut -d: -f1
+        rm -f /tmp/list_before /tmp/list_after
+    fi
 fi
 
 exec "$@"
diff --git a/update.sh b/update.sh
index 4c41d75..8fd447e 100755
--- a/update.sh
+++ b/update.sh
@@ -43,9 +43,17 @@ for latest in "${latests[@]}"; do
 			sed -ri -e '/a2enmod/d' "$version/$variant/Dockerfile"
 		fi
 
+		# Remove the assets folder if version >= 10.0
+		if version_greater_or_equal "$version" "10.0"; then
+			sed -ri -e '/assets/d' "$version/$variant/Dockerfile"
+		fi
+
 		# Copy the docker-entrypoint.
 		cp docker-entrypoint.sh "$version/$variant/docker-entrypoint.sh"
 
+		# Copy apps.config.php
+		cp apps.config.php "$version/$variant/apps.config.php"
+
 		travisEnv='\n  - VERSION='"$version"' VARIANT='"$variant$travisEnv"
 	done
 done