diff --git a/.config/redis.config.php b/.config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/.config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/.examples/README.md b/.examples/README.md
index d21834479..015ff53ee 100644
--- a/.examples/README.md
+++ b/.examples/README.md
@@ -21,48 +21,43 @@ Example | Description
 ### full
 The `full` Dockerfile example adds dependencies for all optional packages suggested by nextcloud that may be needed for some features (e.g. Video Preview Generation), as stated in the [Administration Manual](https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html).
 
-NOTE: The Dockerfile does not install the LibreOffice package (line is commented), because it would increase the generated Image size by approximately 500 MB. In order to install it, simply uncomment the 13th line of the Dockerfile.  
+NOTE: The Dockerfile does not install the LibreOffice package (line is commented), because it would increase the generated Image size by approximately 500 MB. In order to install it, simply uncomment the appropriate line in the Dockerfile.
 
-NOTE: Per default, only previews for BMP, GIF, JPEG, MarkDown, MP3, PNG, TXT, and XBitmap Files are generated. The configuration of the preview generation can be done in config.php, as explained in the [Administration Manual](https://docs.nextcloud.com/server/12/admin_manual/configuration_server/config_sample_php_parameters.html#previews)  
+NOTE: Per default, only previews for BMP, GIF, JPEG, MarkDown, MP3, PNG, TXT, and XBitmap Files are generated. The configuration of the preview generation can be done in config.php, as explained in the [Administration Manual](https://docs.nextcloud.com/server/12/admin_manual/configuration_server/config_sample_php_parameters.html#previews)
 
-NOTE: Nextcloud recommends [disabling preview generation](https://docs.nextcloud.com/server/12/admin_manual/configuration_server/harden_server.html?highlight=enabledpreviewproviders#disable-preview-image-generation) for high security deployments, as preview generation opens your nextcloud instance to new possible attack vectors.  
+NOTE: Nextcloud recommends [disabling preview generation](https://docs.nextcloud.com/server/12/admin_manual/configuration_server/harden_server.html?highlight=enabledpreviewproviders#disable-preview-image-generation) for high security deployments, as preview generation opens your nextcloud instance to new possible attack vectors.
 
 The required steps for each optional/recommended package that is not already in the Nextcloud image are listed here, so that the Dockerfile can easily be modified to only install the needed extra packages. Simply remove the steps for the unwanted packages  from the Dockerfile.
 
 #### PHP Module bz2
-`docker-php-ext-install bz2`  
-
-#### PHP Module imagick
-`apt install libmagickwand-dev`  
-`pecl install imagick`  
-`docker-php-ext-enable imagick`  
+`docker-php-ext-install bz2`
 
 #### PHP Module imap
-`apt install libc-client-dev libkrb5-dev`  
-`docker-php-ext-configure imap --with-kerberos --with-imap-ssl`  
-`docker-php-ext-install imap`  
+`apt install libc-client-dev libkrb5-dev`
+`docker-php-ext-configure imap --with-kerberos --with-imap-ssl`
+`docker-php-ext-install imap`
 
 #### PHP Module gmp
-`apt install libgmp3-dev`  
-`docker-php-ext-install gmp`  
+`apt install libgmp3-dev`
+`docker-php-ext-install gmp`
 
 #### PHP Module smbclient
-`apt install smbclient libsmbclient-dev`  
-`pecl install smbclient`  
-`docker-php-ext-enable smbclient`  
+`apt install smbclient libsmbclient-dev`
+`pecl install smbclient`
+`docker-php-ext-enable smbclient`
 
 #### ffmpeg
-`apt install ffmpeg`  
+`apt install ffmpeg`
 
 #### LibreOffice
-`apt install libreoffice`  
+`apt install libreoffice`
 
 #### CRON via supervisor
-`apt install supervisor`  
-`mkdir /var/log/supervisord /var/run/supervisord`  
-The following Dockerfile commands are also necessary for a sucessfull cron installation:  
-`COPY supervisord.conf /etc/supervisor/supervisord.conf`  
-`CMD ["/usr/bin/supervisord"]`  
+`apt install supervisor`
+`mkdir /var/log/supervisord /var/run/supervisord`
+The following Dockerfile commands are also necessary for a sucessfull cron installation:
+`COPY supervisord.conf /etc/supervisor/supervisord.conf`
+`CMD ["/usr/bin/supervisord"]`
 
 
 
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/apache/docker-compose.yml b/.examples/docker-compose/insecure/mariadb-cron-redis/apache/docker-compose.yml
index 2dc06e159..64c0570fe 100644
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/apache/docker-compose.yml
+++ b/.examples/docker-compose/insecure/mariadb-cron-redis/apache/docker-compose.yml
@@ -13,7 +13,7 @@ services:
       - db.env
 
   redis:
-    image: redis
+    image: redis:alpine
     restart: always
 
   app:
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/app/Dockerfile b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/app/Dockerfile
index 4a1116107..0436d37d5 100644
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/app/Dockerfile
+++ b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/app/Dockerfile
@@ -1,3 +1,3 @@
-FROM nextcloud:fpm
+FROM nextcloud:fpm-alpine
 
 COPY redis.config.php /usr/src/nextcloud/config/redis.config.php
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/docker-compose.yml b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/docker-compose.yml
index 49fafabcf..424ef057f 100644
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/docker-compose.yml
+++ b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/docker-compose.yml
@@ -13,7 +13,7 @@ services:
       - db.env
 
   redis:
-    image: redis
+    image: redis:alpine
     restart: always
 
   app:
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/web/Dockerfile b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/web/Dockerfile
index d6eac3e8e..9e620aff0 100644
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/web/Dockerfile
+++ b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/web/Dockerfile
@@ -1,3 +1,3 @@
-FROM nginx
+FROM nginx:alpine
 
 COPY nginx.conf /etc/nginx/nginx.conf
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/web/nginx.conf b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/web/nginx.conf
index 2d14e2307..49a19c355 100644
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/web/nginx.conf
+++ b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/web/nginx.conf
@@ -1,4 +1,3 @@
-user  www-data;
 worker_processes  1;
 
 error_log  /var/log/nginx/error.log warn;
diff --git a/.examples/docker-compose/insecure/mariadb/fpm/docker-compose.yml b/.examples/docker-compose/insecure/mariadb/fpm/docker-compose.yml
index 3596e9893..eb91bbdb4 100644
--- a/.examples/docker-compose/insecure/mariadb/fpm/docker-compose.yml
+++ b/.examples/docker-compose/insecure/mariadb/fpm/docker-compose.yml
@@ -13,7 +13,7 @@ services:
       - db.env
 
   app:
-    image: nextcloud:fpm
+    image: nextcloud:fpm-alpine
     restart: always
     volumes:
       - nextcloud:/var/www/html
diff --git a/.examples/docker-compose/insecure/mariadb/fpm/web/Dockerfile b/.examples/docker-compose/insecure/mariadb/fpm/web/Dockerfile
index d6eac3e8e..9e620aff0 100644
--- a/.examples/docker-compose/insecure/mariadb/fpm/web/Dockerfile
+++ b/.examples/docker-compose/insecure/mariadb/fpm/web/Dockerfile
@@ -1,3 +1,3 @@
-FROM nginx
+FROM nginx:alpine
 
 COPY nginx.conf /etc/nginx/nginx.conf
diff --git a/.examples/docker-compose/insecure/mariadb/fpm/web/nginx.conf b/.examples/docker-compose/insecure/mariadb/fpm/web/nginx.conf
index 2d14e2307..49a19c355 100644
--- a/.examples/docker-compose/insecure/mariadb/fpm/web/nginx.conf
+++ b/.examples/docker-compose/insecure/mariadb/fpm/web/nginx.conf
@@ -1,4 +1,3 @@
-user  www-data;
 worker_processes  1;
 
 error_log  /var/log/nginx/error.log warn;
diff --git a/.examples/docker-compose/insecure/postgres/apache/docker-compose.yml b/.examples/docker-compose/insecure/postgres/apache/docker-compose.yml
index f69bb72e3..596568d69 100644
--- a/.examples/docker-compose/insecure/postgres/apache/docker-compose.yml
+++ b/.examples/docker-compose/insecure/postgres/apache/docker-compose.yml
@@ -2,7 +2,7 @@ version: '3'
 
 services:
   db:
-    image: postgres
+    image: postgres:alpine
     restart: always
     volumes:
       - db:/var/lib/postgresql/data
diff --git a/.examples/docker-compose/insecure/postgres/fpm/docker-compose.yml b/.examples/docker-compose/insecure/postgres/fpm/docker-compose.yml
index 7a1fab7d2..b1ff459c4 100644
--- a/.examples/docker-compose/insecure/postgres/fpm/docker-compose.yml
+++ b/.examples/docker-compose/insecure/postgres/fpm/docker-compose.yml
@@ -2,7 +2,7 @@ version: '3'
 
 services:
   db:
-    image: postgres
+    image: postgres:alpine
     restart: always
     volumes:
       - db:/var/lib/postgresql/data
@@ -10,7 +10,7 @@ services:
       - db.env
 
   app:
-    image: nextcloud:fpm
+    image: nextcloud:fpm-alpine
     restart: always
     volumes:
       - nextcloud:/var/www/html
diff --git a/.examples/docker-compose/insecure/postgres/fpm/web/Dockerfile b/.examples/docker-compose/insecure/postgres/fpm/web/Dockerfile
index d6eac3e8e..9e620aff0 100644
--- a/.examples/docker-compose/insecure/postgres/fpm/web/Dockerfile
+++ b/.examples/docker-compose/insecure/postgres/fpm/web/Dockerfile
@@ -1,3 +1,3 @@
-FROM nginx
+FROM nginx:alpine
 
 COPY nginx.conf /etc/nginx/nginx.conf
diff --git a/.examples/docker-compose/insecure/postgres/fpm/web/nginx.conf b/.examples/docker-compose/insecure/postgres/fpm/web/nginx.conf
index 2d14e2307..49a19c355 100644
--- a/.examples/docker-compose/insecure/postgres/fpm/web/nginx.conf
+++ b/.examples/docker-compose/insecure/postgres/fpm/web/nginx.conf
@@ -1,4 +1,3 @@
-user  www-data;
 worker_processes  1;
 
 error_log  /var/log/nginx/error.log warn;
diff --git a/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/docker-compose.yml
index 6d1e70a94..3d60f7ee1 100644
--- a/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/docker-compose.yml
@@ -13,7 +13,7 @@ services:
       - db.env
 
   app:
-    image: nextcloud:fpm
+    image: nextcloud:fpm-alpine
     restart: always
     volumes:
       - nextcloud:/var/www/html
diff --git a/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/web/Dockerfile b/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/web/Dockerfile
index d6eac3e8e..9e620aff0 100644
--- a/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/web/Dockerfile
+++ b/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/web/Dockerfile
@@ -1,3 +1,3 @@
-FROM nginx
+FROM nginx:alpine
 
 COPY nginx.conf /etc/nginx/nginx.conf
diff --git a/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/web/nginx.conf b/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/web/nginx.conf
index 518f104d4..266606464 100644
--- a/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/web/nginx.conf
+++ b/.examples/docker-compose/with-nginx-proxy-self-signed-ssl/mariadb/fpm/web/nginx.conf
@@ -1,4 +1,3 @@
-user  www-data;
 worker_processes  1;
 
 error_log  /var/log/nginx/error.log warn;
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/docker-compose.yml
index b6ca391f7..aaec5a2e7 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/docker-compose.yml
@@ -13,7 +13,7 @@ services:
       - db.env
 
   redis:
-    image: redis
+    image: redis:alpine
     restart: always
 
   app:
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/app/Dockerfile b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/app/Dockerfile
index 4a1116107..0436d37d5 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/app/Dockerfile
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/app/Dockerfile
@@ -1,3 +1,3 @@
-FROM nextcloud:fpm
+FROM nextcloud:fpm-alpine
 
 COPY redis.config.php /usr/src/nextcloud/config/redis.config.php
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/docker-compose.yml
index dd98915e4..30aee4d90 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/docker-compose.yml
@@ -13,7 +13,7 @@ services:
       - db.env
 
   redis:
-    image: redis
+    image: redis:alpine
     restart: always
 
   app:
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/web/Dockerfile b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/web/Dockerfile
index d6eac3e8e..9e620aff0 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/web/Dockerfile
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/web/Dockerfile
@@ -1,3 +1,3 @@
-FROM nginx
+FROM nginx:alpine
 
 COPY nginx.conf /etc/nginx/nginx.conf
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/web/nginx.conf b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/web/nginx.conf
index 518f104d4..266606464 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/web/nginx.conf
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/web/nginx.conf
@@ -1,4 +1,3 @@
-user  www-data;
 worker_processes  1;
 
 error_log  /var/log/nginx/error.log warn;
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose.yml
index 17a656de9..5fc70af19 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose.yml
@@ -13,7 +13,7 @@ services:
       - db.env
 
   app:
-    image: nextcloud:fpm
+    image: nextcloud:fpm-alpine
     restart: always
     volumes:
       - nextcloud:/var/www/html
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/web/Dockerfile b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/web/Dockerfile
index d6eac3e8e..9e620aff0 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/web/Dockerfile
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/web/Dockerfile
@@ -1,3 +1,3 @@
-FROM nginx
+FROM nginx:alpine
 
 COPY nginx.conf /etc/nginx/nginx.conf
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/web/nginx.conf b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/web/nginx.conf
index 518f104d4..266606464 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/web/nginx.conf
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/web/nginx.conf
@@ -1,4 +1,3 @@
-user  www-data;
 worker_processes  1;
 
 error_log  /var/log/nginx/error.log warn;
diff --git a/.examples/docker-compose/with-nginx-proxy/postgres/apache/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy/postgres/apache/docker-compose.yml
index a2bda83bd..2e40e8d7e 100644
--- a/.examples/docker-compose/with-nginx-proxy/postgres/apache/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy/postgres/apache/docker-compose.yml
@@ -2,7 +2,7 @@ version: '3'
 
 services:
   db:
-    image: postgres
+    image: postgres:alpine
     restart: always
     volumes:
       - db:/var/lib/postgresql/data
diff --git a/.examples/docker-compose/with-nginx-proxy/postgres/fpm/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy/postgres/fpm/docker-compose.yml
index 9bed12188..39e85f719 100644
--- a/.examples/docker-compose/with-nginx-proxy/postgres/fpm/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy/postgres/fpm/docker-compose.yml
@@ -2,7 +2,7 @@ version: '3'
 
 services:
   db:
-    image: postgres
+    image: postgres:alpine
     restart: always
     volumes:
       - db:/var/lib/postgresql/data
@@ -10,7 +10,7 @@ services:
       - db.env
 
   app:
-    image: nextcloud:fpm
+    image: nextcloud:fpm-alpine
     restart: always
     volumes:
       - nextcloud:/var/www/html
diff --git a/.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/Dockerfile b/.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/Dockerfile
index d6eac3e8e..9e620aff0 100644
--- a/.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/Dockerfile
+++ b/.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/Dockerfile
@@ -1,3 +1,3 @@
-FROM nginx
+FROM nginx:alpine
 
 COPY nginx.conf /etc/nginx/nginx.conf
diff --git a/.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/nginx.conf b/.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/nginx.conf
index 518f104d4..266606464 100644
--- a/.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/nginx.conf
+++ b/.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/nginx.conf
@@ -1,4 +1,3 @@
-user  www-data;
 worker_processes  1;
 
 error_log  /var/log/nginx/error.log warn;
diff --git a/.examples/dockerfiles/cron/fpm-alpine/Dockerfile b/.examples/dockerfiles/cron/fpm-alpine/Dockerfile
new file mode 100644
index 000000000..820b3f9ad
--- /dev/null
+++ b/.examples/dockerfiles/cron/fpm-alpine/Dockerfile
@@ -0,0 +1,10 @@
+FROM nextcloud:fpm-alpine
+
+RUN apk add --no-cache supervisor \
+  && mkdir /var/log/supervisord /var/run/supervisord
+
+COPY supervisord.conf /etc/supervisor/supervisord.conf
+
+ENV NEXTCLOUD_UPDATE=1
+
+CMD ["/usr/bin/supervisord"]
diff --git a/.examples/dockerfiles/cron/fpm-alpine/supervisord.conf b/.examples/dockerfiles/cron/fpm-alpine/supervisord.conf
new file mode 100644
index 000000000..4f7625928
--- /dev/null
+++ b/.examples/dockerfiles/cron/fpm-alpine/supervisord.conf
@@ -0,0 +1,22 @@
+[supervisord]
+nodaemon=true
+logfile=/var/log/supervisord/supervisord.log
+pidfile=/var/run/supervisord/supervisord.pid
+childlogdir=/var/log/supervisord/
+logfile_maxbytes=50MB                           ; maximum size of logfile before rotation
+logfile_backups=10                              ; number of backed up logfiles
+loglevel=error
+
+[program:php-fpm]
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+command=php-fpm
+
+[program:cron]
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+command=/cron.sh
diff --git a/.examples/dockerfiles/full/apache/Dockerfile b/.examples/dockerfiles/full/apache/Dockerfile
index fc5e848c3..fe82de233 100644
--- a/.examples/dockerfiles/full/apache/Dockerfile
+++ b/.examples/dockerfiles/full/apache/Dockerfile
@@ -1,23 +1,58 @@
 FROM nextcloud:apache
 
-RUN mkdir -p /usr/share/man/man1 \
-    && apt-get update && apt-get install -y \
-        supervisor \
+RUN set -ex; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
         ffmpeg \
-        libmagickwand-dev \
-        libgmp3-dev \
+        smbclient \
+        supervisor \
+#       libreoffice \
+    ; \
+    rm -rf /var/lib/apt/lists/*
+
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libbz2-dev \
         libc-client-dev \
+        libgmp3-dev \
         libkrb5-dev \
-        smbclient \
         libsmbclient-dev \
-#       libreoffice \
-    && rm -rf /var/lib/apt/lists/* \
-    && docker-php-ext-configure imap --with-kerberos --with-imap-ssl \
-    && ln -s "/usr/include/$(dpkg-architecture --query DEB_BUILD_MULTIARCH)/gmp.h" /usr/include/gmp.h \
-    && docker-php-ext-install bz2 gmp imap \
-    && pecl install imagick smbclient \
-    && docker-php-ext-enable imagick smbclient \
-    && mkdir /var/log/supervisord /var/run/supervisord
+    ; \
+    \
+    docker-php-ext-configure imap --with-kerberos --with-imap-ssl; \
+    ln -s "/usr/include/$(dpkg-architecture --query DEB_BUILD_MULTIARCH)/gmp.h" /usr/include/gmp.h; \
+    docker-php-ext-install \
+        bz2 \
+        gmp \
+        imap \
+    ; \
+    pecl install smbclient; \
+    docker-php-ext-enable smbclient; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
+
+RUN mkdir -p \
+    /usr/share/man/man1 \
+    /var/log/supervisord \
+    /var/run/supervisord \
+;
 
 COPY supervisord.conf /etc/supervisor/supervisord.conf
 
diff --git a/.examples/dockerfiles/full/fpm-alpine/Dockerfile b/.examples/dockerfiles/full/fpm-alpine/Dockerfile
new file mode 100644
index 000000000..bfcb263af
--- /dev/null
+++ b/.examples/dockerfiles/full/fpm-alpine/Dockerfile
@@ -0,0 +1,52 @@
+FROM nextcloud:fpm-alpine
+
+RUN set -ex; \
+    \
+    apk add --no-cache \
+        ffmpeg \
+        samba-client \
+        supervisor \
+#       libreoffice \
+    ;
+
+RUN set -ex; \
+    \
+    apk add --no-cache --virtual .build-deps \
+        $PHPIZE_DEPS \
+        imap-dev \
+        krb5-dev \
+        libressl-dev \
+        samba-dev \
+        bzip2-dev \
+        gmp-dev \
+    ; \
+    \
+    docker-php-ext-configure imap --with-kerberos --with-imap-ssl; \
+    docker-php-ext-install \
+        bz2 \
+        gmp \
+        imap \
+    ; \
+    pecl install smbclient; \
+    docker-php-ext-enable smbclient; \
+    \
+    runDeps="$( \
+        scanelf --needed --nobanner --format '%n#p' --recursive /usr/local/lib/php/extensions \
+            | tr ',' '\n' \
+            | sort -u \
+            | awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
+    )"; \
+    apk add --virtual .nextcloud-phpext-rundeps $runDeps; \
+    apk del .build-deps
+
+RUN mkdir -p \
+    /usr/share/man/man1 \
+    /var/log/supervisord \
+    /var/run/supervisord \
+;
+
+COPY supervisord.conf /etc/supervisor/supervisord.conf
+
+ENV NEXTCLOUD_UPDATE=1
+
+CMD ["/usr/bin/supervisord"]
diff --git a/.examples/dockerfiles/full/fpm-alpine/supervisord.conf b/.examples/dockerfiles/full/fpm-alpine/supervisord.conf
new file mode 100644
index 000000000..4f7625928
--- /dev/null
+++ b/.examples/dockerfiles/full/fpm-alpine/supervisord.conf
@@ -0,0 +1,22 @@
+[supervisord]
+nodaemon=true
+logfile=/var/log/supervisord/supervisord.log
+pidfile=/var/run/supervisord/supervisord.pid
+childlogdir=/var/log/supervisord/
+logfile_maxbytes=50MB                           ; maximum size of logfile before rotation
+logfile_backups=10                              ; number of backed up logfiles
+loglevel=error
+
+[program:php-fpm]
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+command=php-fpm
+
+[program:cron]
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+command=/cron.sh
diff --git a/.examples/dockerfiles/full/fpm/Dockerfile b/.examples/dockerfiles/full/fpm/Dockerfile
index b73112583..3e53e5978 100644
--- a/.examples/dockerfiles/full/fpm/Dockerfile
+++ b/.examples/dockerfiles/full/fpm/Dockerfile
@@ -1,23 +1,58 @@
 FROM nextcloud:fpm
 
-RUN mkdir -p /usr/share/man/man1 \
-    && apt-get update && apt-get install -y \
-        supervisor \
+RUN set -ex; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
         ffmpeg \
-        libmagickwand-dev \
-        libgmp3-dev \
+        smbclient \
+        supervisor \
+#       libreoffice \
+    ; \
+    rm -rf /var/lib/apt/lists/*
+
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libbz2-dev \
         libc-client-dev \
+        libgmp3-dev \
         libkrb5-dev \
-        smbclient \
         libsmbclient-dev \
-#       libreoffice \
-    && rm -rf /var/lib/apt/lists/* \
-    && docker-php-ext-configure imap --with-kerberos --with-imap-ssl \
-    && ln -s "/usr/include/$(dpkg-architecture --query DEB_BUILD_MULTIARCH)/gmp.h" /usr/include/gmp.h \
-    && docker-php-ext-install bz2 gmp imap \
-    && pecl install imagick smbclient \
-    && docker-php-ext-enable imagick smbclient \
-    && mkdir /var/log/supervisord /var/run/supervisord
+    ; \
+    \
+    docker-php-ext-configure imap --with-kerberos --with-imap-ssl; \
+    ln -s "/usr/include/$(dpkg-architecture --query DEB_BUILD_MULTIARCH)/gmp.h" /usr/include/gmp.h; \
+    docker-php-ext-install \
+        bz2 \
+        gmp \
+        imap \
+    ; \
+    pecl install smbclient; \
+    docker-php-ext-enable smbclient; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
+
+RUN mkdir -p \
+    /usr/share/man/man1 \
+    /var/log/supervisord \
+    /var/run/supervisord \
+;
 
 COPY supervisord.conf /etc/supervisor/supervisord.conf
 
diff --git a/.examples/dockerfiles/imap/apache/Dockerfile b/.examples/dockerfiles/imap/apache/Dockerfile
index f7958c081..5f24c7561 100644
--- a/.examples/dockerfiles/imap/apache/Dockerfile
+++ b/.examples/dockerfiles/imap/apache/Dockerfile
@@ -1,7 +1,28 @@
 FROM nextcloud:apache
 
-RUN apt-get update \
- && apt-get install -y libc-client-dev libkrb5-dev \
- && rm -rf /var/lib/apt/lists/* \
- && docker-php-ext-configure imap --with-kerberos --with-imap-ssl \
- && docker-php-ext-install imap
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libc-client-dev \
+        libkrb5-dev \
+    ; \
+    \
+    docker-php-ext-configure imap --with-kerberos --with-imap-ssl; \
+    docker-php-ext-install imap; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
diff --git a/.examples/dockerfiles/imap/fpm-alpine/Dockerfile b/.examples/dockerfiles/imap/fpm-alpine/Dockerfile
new file mode 100644
index 000000000..289c2a993
--- /dev/null
+++ b/.examples/dockerfiles/imap/fpm-alpine/Dockerfile
@@ -0,0 +1,22 @@
+FROM nextcloud:fpm-alpine
+
+RUN set -ex; \
+    \
+    apk add --no-cache --virtual .build-deps \
+        $PHPIZE_DEPS \
+        imap-dev \
+        krb5-dev \
+        libressl-dev \
+    ; \
+    \
+    docker-php-ext-configure imap --with-kerberos --with-imap-ssl; \
+    docker-php-ext-install imap; \
+    \
+    runDeps="$( \
+        scanelf --needed --nobanner --format '%n#p' --recursive /usr/local/lib/php/extensions \
+            | tr ',' '\n' \
+            | sort -u \
+            | awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
+    )"; \
+    apk add --virtual .nextcloud-phpext-rundeps $runDeps; \
+    apk del .build-deps
diff --git a/.examples/dockerfiles/imap/fpm/Dockerfile b/.examples/dockerfiles/imap/fpm/Dockerfile
index b403de66c..f692fd7ac 100644
--- a/.examples/dockerfiles/imap/fpm/Dockerfile
+++ b/.examples/dockerfiles/imap/fpm/Dockerfile
@@ -1,7 +1,28 @@
 FROM nextcloud:fpm
 
-RUN apt-get update \
- && apt-get install -y libc-client-dev libkrb5-dev \
- && rm -rf /var/lib/apt/lists/* \
- && docker-php-ext-configure imap --with-kerberos --with-imap-ssl \
- && docker-php-ext-install imap
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libc-client-dev \
+        libkrb5-dev \
+    ; \
+    \
+    docker-php-ext-configure imap --with-kerberos --with-imap-ssl; \
+    docker-php-ext-install imap; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
diff --git a/.examples/dockerfiles/smb/fpm-alpine/Dockerfile b/.examples/dockerfiles/smb/fpm-alpine/Dockerfile
new file mode 100644
index 000000000..a66cd93a8
--- /dev/null
+++ b/.examples/dockerfiles/smb/fpm-alpine/Dockerfile
@@ -0,0 +1,3 @@
+FROM nextcloud:fpm-alpine
+
+RUN apk add --no-cache samba-client
diff --git a/.travis.yml b/.travis.yml
index e042d1fcd..c7bdc6060 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -50,12 +50,24 @@ jobs:
         - ./generate-stackbrew-library.sh
 
     - stage: test images
-      env: VERSION=12.0 VARIANT=fpm-alpine ARCH=amd64
-    - env: VERSION=12.0 VARIANT=fpm-alpine ARCH=i386
-    - env: VERSION=12.0 VARIANT=fpm ARCH=amd64
-    - env: VERSION=12.0 VARIANT=fpm ARCH=i386
-    - env: VERSION=12.0 VARIANT=apache ARCH=amd64
-    - env: VERSION=12.0 VARIANT=apache ARCH=i386
+      env: VERSION=13.0-rc VARIANT=fpm-alpine ARCH=amd64
+    - env: VERSION=13.0-rc VARIANT=fpm-alpine ARCH=i386
+    - env: VERSION=13.0-rc VARIANT=fpm ARCH=amd64
+    - env: VERSION=13.0-rc VARIANT=fpm ARCH=i386
+    - env: VERSION=13.0-rc VARIANT=apache ARCH=amd64
+    - env: VERSION=13.0-rc VARIANT=apache ARCH=i386
+    - env: VERSION=14.0-rc VARIANT=fpm-alpine ARCH=amd64
+    - env: VERSION=14.0-rc VARIANT=fpm-alpine ARCH=i386
+    - env: VERSION=14.0-rc VARIANT=fpm ARCH=amd64
+    - env: VERSION=14.0-rc VARIANT=fpm ARCH=i386
+    - env: VERSION=14.0-rc VARIANT=apache ARCH=amd64
+    - env: VERSION=14.0-rc VARIANT=apache ARCH=i386
+    - env: VERSION=15.0-rc VARIANT=fpm-alpine ARCH=amd64
+    - env: VERSION=15.0-rc VARIANT=fpm-alpine ARCH=i386
+    - env: VERSION=15.0-rc VARIANT=fpm ARCH=amd64
+    - env: VERSION=15.0-rc VARIANT=fpm ARCH=i386
+    - env: VERSION=15.0-rc VARIANT=apache ARCH=amd64
+    - env: VERSION=15.0-rc VARIANT=apache ARCH=i386
     - env: VERSION=13.0 VARIANT=fpm-alpine ARCH=amd64
     - env: VERSION=13.0 VARIANT=fpm-alpine ARCH=i386
     - env: VERSION=13.0 VARIANT=fpm ARCH=amd64
@@ -68,3 +80,9 @@ jobs:
     - env: VERSION=14.0 VARIANT=fpm ARCH=i386
     - env: VERSION=14.0 VARIANT=apache ARCH=amd64
     - env: VERSION=14.0 VARIANT=apache ARCH=i386
+    - env: VERSION=15.0 VARIANT=fpm-alpine ARCH=amd64
+    - env: VERSION=15.0 VARIANT=fpm-alpine ARCH=i386
+    - env: VERSION=15.0 VARIANT=fpm ARCH=amd64
+    - env: VERSION=15.0 VARIANT=fpm ARCH=i386
+    - env: VERSION=15.0 VARIANT=apache ARCH=amd64
+    - env: VERSION=15.0 VARIANT=apache ARCH=i386
diff --git a/13.0-rc/apache/Dockerfile b/13.0-rc/apache/Dockerfile
new file mode 100644
index 000000000..b94ab1600
--- /dev/null
+++ b/13.0-rc/apache/Dockerfile
@@ -0,0 +1,145 @@
+# DO NOT EDIT: created by update.sh from Dockerfile-debian.template
+FROM php:7.2-apache-stretch
+
+# entrypoint.sh and cron.sh dependencies
+RUN set -ex; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        rsync \
+        bzip2 \
+        busybox-static \
+    ; \
+    rm -rf /var/lib/apt/lists/*; \
+    \
+    mkdir -p /var/spool/cron/crontabs; \
+    echo '*/15 * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
+
+# install the PHP extensions we need
+# see https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libcurl4-openssl-dev \
+        libfreetype6-dev \
+        libicu-dev \
+        libjpeg-dev \
+        libldap2-dev \
+        libmcrypt-dev \
+        libmemcached-dev \
+        libpng-dev \
+        libpq-dev \
+        libxml2-dev \
+        libmagickwand-dev \
+    ; \
+    \
+    debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
+    docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
+    docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
+    docker-php-ext-install \
+        exif \
+        gd \
+        intl \
+        ldap \
+        opcache \
+        pcntl \
+        pdo_mysql \
+        pdo_pgsql \
+        zip \
+    ; \
+    \
+# pecl will claim success even if one install fails, so we need to perform each install separately
+    pecl install APCu-5.1.15; \
+    pecl install memcached-3.0.4; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
+    \
+    docker-php-ext-enable \
+        apcu \
+        memcached \
+        redis \
+        imagick \
+    ; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
+
+# set recommended PHP.ini settings
+# see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/server_tuning.html#enable-php-opcache
+RUN { \
+        echo 'opcache.enable=1'; \
+        echo 'opcache.enable_cli=1'; \
+        echo 'opcache.interned_strings_buffer=8'; \
+        echo 'opcache.max_accelerated_files=10000'; \
+        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.save_comments=1'; \
+        echo 'opcache.revalidate_freq=1'; \
+    } > /usr/local/etc/php/conf.d/opcache-recommended.ini; \
+    \
+    echo 'apc.enable_cli=1' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini; \
+    \
+    echo 'memory_limit=512M' > /usr/local/etc/php/conf.d/memory-limit.ini; \
+    \
+    mkdir /var/www/data; \
+    chown -R www-data:root /var/www; \
+    chmod -R g=u /var/www
+
+VOLUME /var/www/html
+
+RUN a2enmod rewrite remoteip ;\
+    {\
+     echo RemoteIPHeader X-Real-IP ;\
+     echo RemoteIPTrustedProxy 10.0.0.0/8 ;\
+     echo RemoteIPTrustedProxy 172.16.0.0/12 ;\
+     echo RemoteIPTrustedProxy 192.168.0.0/16 ;\
+    } > /etc/apache2/conf-available/remoteip.conf;\
+    a2enconf remoteip
+
+ENV NEXTCLOUD_VERSION 13.0.9RC2
+
+RUN set -ex; \
+    fetchDeps=" \
+        gnupg \
+        dirmngr \
+    "; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends $fetchDeps; \
+    \
+    curl -fsSL -o nextcloud.tar.bz2 \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+# gpg key from https://nextcloud.com/nextcloud.asc
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
+    gpgconf --kill all; \
+    rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    rm -rf /usr/src/nextcloud/updater; \
+    mkdir -p /usr/src/nextcloud/data; \
+    mkdir -p /usr/src/nextcloud/custom_apps; \
+    chmod +x /usr/src/nextcloud/occ; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false $fetchDeps; \
+    rm -rf /var/lib/apt/lists/*
+
+COPY *.sh upgrade.exclude /
+COPY config/* /usr/src/nextcloud/config/
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["apache2-foreground"]
diff --git a/12.0/apache/config/apache-pretty-urls.config.php b/13.0-rc/apache/config/apache-pretty-urls.config.php
similarity index 100%
rename from 12.0/apache/config/apache-pretty-urls.config.php
rename to 13.0-rc/apache/config/apache-pretty-urls.config.php
diff --git a/12.0/apache/config/apcu.config.php b/13.0-rc/apache/config/apcu.config.php
similarity index 100%
rename from 12.0/apache/config/apcu.config.php
rename to 13.0-rc/apache/config/apcu.config.php
diff --git a/12.0/apache/config/apps.config.php b/13.0-rc/apache/config/apps.config.php
similarity index 100%
rename from 12.0/apache/config/apps.config.php
rename to 13.0-rc/apache/config/apps.config.php
diff --git a/12.0/apache/config/autoconfig.php b/13.0-rc/apache/config/autoconfig.php
similarity index 100%
rename from 12.0/apache/config/autoconfig.php
rename to 13.0-rc/apache/config/autoconfig.php
diff --git a/13.0-rc/apache/config/redis.config.php b/13.0-rc/apache/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/13.0-rc/apache/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/12.0/apache/cron.sh b/13.0-rc/apache/cron.sh
similarity index 100%
rename from 12.0/apache/cron.sh
rename to 13.0-rc/apache/cron.sh
diff --git a/12.0/fpm/entrypoint.sh b/13.0-rc/apache/entrypoint.sh
similarity index 99%
rename from 12.0/fpm/entrypoint.sh
rename to 13.0-rc/apache/entrypoint.sh
index 045227e80..07644c048 100755
--- a/12.0/fpm/entrypoint.sh
+++ b/13.0-rc/apache/entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/12.0/apache/upgrade.exclude b/13.0-rc/apache/upgrade.exclude
similarity index 100%
rename from 12.0/apache/upgrade.exclude
rename to 13.0-rc/apache/upgrade.exclude
diff --git a/13.0-rc/fpm-alpine/Dockerfile b/13.0-rc/fpm-alpine/Dockerfile
new file mode 100644
index 000000000..8eabdcf47
--- /dev/null
+++ b/13.0-rc/fpm-alpine/Dockerfile
@@ -0,0 +1,122 @@
+# DO NOT EDIT: created by update.sh from Dockerfile-alpine.template
+FROM php:7.2-fpm-alpine3.8
+
+# entrypoint.sh and cron.sh dependencies
+RUN set -ex; \
+    \
+    apk add --no-cache \
+        rsync \
+    ; \
+    \
+    rm /var/spool/cron/crontabs/root; \
+    echo '*/15 * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
+
+# install the PHP extensions we need
+# see https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html
+RUN set -ex; \
+    \
+    apk add --no-cache --virtual .build-deps \
+        $PHPIZE_DEPS \
+        autoconf \
+        freetype-dev \
+        icu-dev \
+        libjpeg-turbo-dev \
+        libmcrypt-dev \
+        libpng-dev \
+        libmemcached-dev \
+        libxml2-dev \
+        openldap-dev \
+        pcre-dev \
+        postgresql-dev \
+        imagemagick-dev \
+    ; \
+    \
+    docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
+    docker-php-ext-configure ldap; \
+    docker-php-ext-install \
+        exif \
+        gd \
+        intl \
+        ldap \
+        opcache \
+        pcntl \
+        pdo_mysql \
+        pdo_pgsql \
+        zip \
+    ; \
+    \
+# pecl will claim success even if one install fails, so we need to perform each install separately
+    pecl install APCu-5.1.15; \
+    pecl install memcached-3.0.4; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
+    \
+    docker-php-ext-enable \
+        apcu \
+        memcached \
+        redis \
+        imagick \
+    ; \
+    \
+    runDeps="$( \
+        scanelf --needed --nobanner --format '%n#p' --recursive /usr/local/lib/php/extensions \
+            | tr ',' '\n' \
+            | sort -u \
+            | awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
+    )"; \
+    apk add --virtual .nextcloud-phpext-rundeps $runDeps; \
+    apk del .build-deps
+
+# set recommended PHP.ini settings
+# see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/server_tuning.html#enable-php-opcache
+RUN { \
+        echo 'opcache.enable=1'; \
+        echo 'opcache.enable_cli=1'; \
+        echo 'opcache.interned_strings_buffer=8'; \
+        echo 'opcache.max_accelerated_files=10000'; \
+        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.save_comments=1'; \
+        echo 'opcache.revalidate_freq=1'; \
+    } > /usr/local/etc/php/conf.d/opcache-recommended.ini; \
+    \
+    echo 'apc.enable_cli=1' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini; \
+    \
+    echo 'memory_limit=512M' > /usr/local/etc/php/conf.d/memory-limit.ini; \
+    \
+    mkdir /var/www/data; \
+    chown -R www-data:root /var/www; \
+    chmod -R g=u /var/www
+
+VOLUME /var/www/html
+
+
+ENV NEXTCLOUD_VERSION 13.0.9RC2
+
+RUN set -ex; \
+    apk add --no-cache --virtual .fetch-deps \
+        bzip2 \
+        gnupg \
+    ; \
+    \
+    curl -fsSL -o nextcloud.tar.bz2 \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+# gpg key from https://nextcloud.com/nextcloud.asc
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
+    gpgconf --kill all; \
+    rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    rm -rf /usr/src/nextcloud/updater; \
+    mkdir -p /usr/src/nextcloud/data; \
+    mkdir -p /usr/src/nextcloud/custom_apps; \
+    chmod +x /usr/src/nextcloud/occ; \
+    apk del .fetch-deps
+
+COPY *.sh upgrade.exclude /
+COPY config/* /usr/src/nextcloud/config/
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["php-fpm"]
diff --git a/12.0/fpm-alpine/config/apcu.config.php b/13.0-rc/fpm-alpine/config/apcu.config.php
similarity index 100%
rename from 12.0/fpm-alpine/config/apcu.config.php
rename to 13.0-rc/fpm-alpine/config/apcu.config.php
diff --git a/12.0/fpm-alpine/config/apps.config.php b/13.0-rc/fpm-alpine/config/apps.config.php
similarity index 100%
rename from 12.0/fpm-alpine/config/apps.config.php
rename to 13.0-rc/fpm-alpine/config/apps.config.php
diff --git a/12.0/fpm-alpine/config/autoconfig.php b/13.0-rc/fpm-alpine/config/autoconfig.php
similarity index 100%
rename from 12.0/fpm-alpine/config/autoconfig.php
rename to 13.0-rc/fpm-alpine/config/autoconfig.php
diff --git a/13.0-rc/fpm-alpine/config/redis.config.php b/13.0-rc/fpm-alpine/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/13.0-rc/fpm-alpine/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/12.0/fpm-alpine/cron.sh b/13.0-rc/fpm-alpine/cron.sh
similarity index 100%
rename from 12.0/fpm-alpine/cron.sh
rename to 13.0-rc/fpm-alpine/cron.sh
diff --git a/12.0/apache/entrypoint.sh b/13.0-rc/fpm-alpine/entrypoint.sh
similarity index 99%
rename from 12.0/apache/entrypoint.sh
rename to 13.0-rc/fpm-alpine/entrypoint.sh
index 045227e80..07644c048 100755
--- a/12.0/apache/entrypoint.sh
+++ b/13.0-rc/fpm-alpine/entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/12.0/fpm-alpine/upgrade.exclude b/13.0-rc/fpm-alpine/upgrade.exclude
similarity index 100%
rename from 12.0/fpm-alpine/upgrade.exclude
rename to 13.0-rc/fpm-alpine/upgrade.exclude
diff --git a/13.0-rc/fpm/Dockerfile b/13.0-rc/fpm/Dockerfile
new file mode 100644
index 000000000..e5439ce4b
--- /dev/null
+++ b/13.0-rc/fpm/Dockerfile
@@ -0,0 +1,137 @@
+# DO NOT EDIT: created by update.sh from Dockerfile-debian.template
+FROM php:7.2-fpm-stretch
+
+# entrypoint.sh and cron.sh dependencies
+RUN set -ex; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        rsync \
+        bzip2 \
+        busybox-static \
+    ; \
+    rm -rf /var/lib/apt/lists/*; \
+    \
+    mkdir -p /var/spool/cron/crontabs; \
+    echo '*/15 * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
+
+# install the PHP extensions we need
+# see https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libcurl4-openssl-dev \
+        libfreetype6-dev \
+        libicu-dev \
+        libjpeg-dev \
+        libldap2-dev \
+        libmcrypt-dev \
+        libmemcached-dev \
+        libpng-dev \
+        libpq-dev \
+        libxml2-dev \
+        libmagickwand-dev \
+    ; \
+    \
+    debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
+    docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
+    docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
+    docker-php-ext-install \
+        exif \
+        gd \
+        intl \
+        ldap \
+        opcache \
+        pcntl \
+        pdo_mysql \
+        pdo_pgsql \
+        zip \
+    ; \
+    \
+# pecl will claim success even if one install fails, so we need to perform each install separately
+    pecl install APCu-5.1.15; \
+    pecl install memcached-3.0.4; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
+    \
+    docker-php-ext-enable \
+        apcu \
+        memcached \
+        redis \
+        imagick \
+    ; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
+
+# set recommended PHP.ini settings
+# see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/server_tuning.html#enable-php-opcache
+RUN { \
+        echo 'opcache.enable=1'; \
+        echo 'opcache.enable_cli=1'; \
+        echo 'opcache.interned_strings_buffer=8'; \
+        echo 'opcache.max_accelerated_files=10000'; \
+        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.save_comments=1'; \
+        echo 'opcache.revalidate_freq=1'; \
+    } > /usr/local/etc/php/conf.d/opcache-recommended.ini; \
+    \
+    echo 'apc.enable_cli=1' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini; \
+    \
+    echo 'memory_limit=512M' > /usr/local/etc/php/conf.d/memory-limit.ini; \
+    \
+    mkdir /var/www/data; \
+    chown -R www-data:root /var/www; \
+    chmod -R g=u /var/www
+
+VOLUME /var/www/html
+
+
+ENV NEXTCLOUD_VERSION 13.0.9RC2
+
+RUN set -ex; \
+    fetchDeps=" \
+        gnupg \
+        dirmngr \
+    "; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends $fetchDeps; \
+    \
+    curl -fsSL -o nextcloud.tar.bz2 \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+# gpg key from https://nextcloud.com/nextcloud.asc
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
+    gpgconf --kill all; \
+    rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    rm -rf /usr/src/nextcloud/updater; \
+    mkdir -p /usr/src/nextcloud/data; \
+    mkdir -p /usr/src/nextcloud/custom_apps; \
+    chmod +x /usr/src/nextcloud/occ; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false $fetchDeps; \
+    rm -rf /var/lib/apt/lists/*
+
+COPY *.sh upgrade.exclude /
+COPY config/* /usr/src/nextcloud/config/
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["php-fpm"]
diff --git a/12.0/fpm/config/apcu.config.php b/13.0-rc/fpm/config/apcu.config.php
similarity index 100%
rename from 12.0/fpm/config/apcu.config.php
rename to 13.0-rc/fpm/config/apcu.config.php
diff --git a/12.0/fpm/config/apps.config.php b/13.0-rc/fpm/config/apps.config.php
similarity index 100%
rename from 12.0/fpm/config/apps.config.php
rename to 13.0-rc/fpm/config/apps.config.php
diff --git a/12.0/fpm/config/autoconfig.php b/13.0-rc/fpm/config/autoconfig.php
similarity index 100%
rename from 12.0/fpm/config/autoconfig.php
rename to 13.0-rc/fpm/config/autoconfig.php
diff --git a/13.0-rc/fpm/config/redis.config.php b/13.0-rc/fpm/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/13.0-rc/fpm/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/12.0/fpm/cron.sh b/13.0-rc/fpm/cron.sh
similarity index 100%
rename from 12.0/fpm/cron.sh
rename to 13.0-rc/fpm/cron.sh
diff --git a/12.0/fpm-alpine/entrypoint.sh b/13.0-rc/fpm/entrypoint.sh
similarity index 99%
rename from 12.0/fpm-alpine/entrypoint.sh
rename to 13.0-rc/fpm/entrypoint.sh
index 045227e80..07644c048 100755
--- a/12.0/fpm-alpine/entrypoint.sh
+++ b/13.0-rc/fpm/entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/12.0/fpm/upgrade.exclude b/13.0-rc/fpm/upgrade.exclude
similarity index 100%
rename from 12.0/fpm/upgrade.exclude
rename to 13.0-rc/fpm/upgrade.exclude
diff --git a/13.0/apache/Dockerfile b/13.0/apache/Dockerfile
index c9eca58ce..5c096bb42 100644
--- a/13.0/apache/Dockerfile
+++ b/13.0/apache/Dockerfile
@@ -33,6 +33,7 @@ RUN set -ex; \
         libpng-dev \
         libpq-dev \
         libxml2-dev \
+        libmagickwand-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
@@ -51,14 +52,16 @@ RUN set -ex; \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
-    pecl install APCu-5.1.12; \
+    pecl install APCu-5.1.15; \
     pecl install memcached-3.0.4; \
-    pecl install redis-4.1.1; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
 # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
@@ -106,7 +109,7 @@ RUN a2enmod rewrite remoteip ;\
     } > /etc/apache2/conf-available/remoteip.conf;\
     a2enconf remoteip
 
-ENV NEXTCLOUD_VERSION 13.0.7
+ENV NEXTCLOUD_VERSION 13.0.8
 
 RUN set -ex; \
     fetchDeps=" \
@@ -122,7 +125,7 @@ RUN set -ex; \
         "https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/13.0/apache/config/redis.config.php b/13.0/apache/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/13.0/apache/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/13.0/apache/entrypoint.sh b/13.0/apache/entrypoint.sh
index 045227e80..07644c048 100755
--- a/13.0/apache/entrypoint.sh
+++ b/13.0/apache/entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/13.0/fpm-alpine/Dockerfile b/13.0/fpm-alpine/Dockerfile
index 797a70403..b2cb6b8cf 100644
--- a/13.0/fpm-alpine/Dockerfile
+++ b/13.0/fpm-alpine/Dockerfile
@@ -28,6 +28,7 @@ RUN set -ex; \
         openldap-dev \
         pcre-dev \
         postgresql-dev \
+        imagemagick-dev \
     ; \
     \
     docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
@@ -45,14 +46,16 @@ RUN set -ex; \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
-    pecl install APCu-5.1.12; \
+    pecl install APCu-5.1.15; \
     pecl install memcached-3.0.4; \
-    pecl install redis-4.1.1; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
     runDeps="$( \
@@ -87,7 +90,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 13.0.7
+ENV NEXTCLOUD_VERSION 13.0.8
 
 RUN set -ex; \
     apk add --no-cache --virtual .fetch-deps \
@@ -101,7 +104,7 @@ RUN set -ex; \
         "https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/13.0/fpm-alpine/config/redis.config.php b/13.0/fpm-alpine/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/13.0/fpm-alpine/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/13.0/fpm-alpine/entrypoint.sh b/13.0/fpm-alpine/entrypoint.sh
index 045227e80..07644c048 100755
--- a/13.0/fpm-alpine/entrypoint.sh
+++ b/13.0/fpm-alpine/entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/13.0/fpm/Dockerfile b/13.0/fpm/Dockerfile
index 1b2df5ff1..ad42be597 100644
--- a/13.0/fpm/Dockerfile
+++ b/13.0/fpm/Dockerfile
@@ -33,6 +33,7 @@ RUN set -ex; \
         libpng-dev \
         libpq-dev \
         libxml2-dev \
+        libmagickwand-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
@@ -51,14 +52,16 @@ RUN set -ex; \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
-    pecl install APCu-5.1.12; \
+    pecl install APCu-5.1.15; \
     pecl install memcached-3.0.4; \
-    pecl install redis-4.1.1; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
 # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
@@ -98,7 +101,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 13.0.7
+ENV NEXTCLOUD_VERSION 13.0.8
 
 RUN set -ex; \
     fetchDeps=" \
@@ -114,7 +117,7 @@ RUN set -ex; \
         "https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/13.0/fpm/config/redis.config.php b/13.0/fpm/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/13.0/fpm/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/13.0/fpm/entrypoint.sh b/13.0/fpm/entrypoint.sh
index 045227e80..07644c048 100755
--- a/13.0/fpm/entrypoint.sh
+++ b/13.0/fpm/entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/14.0-rc/apache/Dockerfile b/14.0-rc/apache/Dockerfile
new file mode 100644
index 000000000..aa62f6601
--- /dev/null
+++ b/14.0-rc/apache/Dockerfile
@@ -0,0 +1,145 @@
+# DO NOT EDIT: created by update.sh from Dockerfile-debian.template
+FROM php:7.2-apache-stretch
+
+# entrypoint.sh and cron.sh dependencies
+RUN set -ex; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        rsync \
+        bzip2 \
+        busybox-static \
+    ; \
+    rm -rf /var/lib/apt/lists/*; \
+    \
+    mkdir -p /var/spool/cron/crontabs; \
+    echo '*/15 * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
+
+# install the PHP extensions we need
+# see https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libcurl4-openssl-dev \
+        libfreetype6-dev \
+        libicu-dev \
+        libjpeg-dev \
+        libldap2-dev \
+        libmcrypt-dev \
+        libmemcached-dev \
+        libpng-dev \
+        libpq-dev \
+        libxml2-dev \
+        libmagickwand-dev \
+    ; \
+    \
+    debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
+    docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
+    docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
+    docker-php-ext-install \
+        exif \
+        gd \
+        intl \
+        ldap \
+        opcache \
+        pcntl \
+        pdo_mysql \
+        pdo_pgsql \
+        zip \
+    ; \
+    \
+# pecl will claim success even if one install fails, so we need to perform each install separately
+    pecl install APCu-5.1.15; \
+    pecl install memcached-3.0.4; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
+    \
+    docker-php-ext-enable \
+        apcu \
+        memcached \
+        redis \
+        imagick \
+    ; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
+
+# set recommended PHP.ini settings
+# see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/server_tuning.html#enable-php-opcache
+RUN { \
+        echo 'opcache.enable=1'; \
+        echo 'opcache.enable_cli=1'; \
+        echo 'opcache.interned_strings_buffer=8'; \
+        echo 'opcache.max_accelerated_files=10000'; \
+        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.save_comments=1'; \
+        echo 'opcache.revalidate_freq=1'; \
+    } > /usr/local/etc/php/conf.d/opcache-recommended.ini; \
+    \
+    echo 'apc.enable_cli=1' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini; \
+    \
+    echo 'memory_limit=512M' > /usr/local/etc/php/conf.d/memory-limit.ini; \
+    \
+    mkdir /var/www/data; \
+    chown -R www-data:root /var/www; \
+    chmod -R g=u /var/www
+
+VOLUME /var/www/html
+
+RUN a2enmod rewrite remoteip ;\
+    {\
+     echo RemoteIPHeader X-Real-IP ;\
+     echo RemoteIPTrustedProxy 10.0.0.0/8 ;\
+     echo RemoteIPTrustedProxy 172.16.0.0/12 ;\
+     echo RemoteIPTrustedProxy 192.168.0.0/16 ;\
+    } > /etc/apache2/conf-available/remoteip.conf;\
+    a2enconf remoteip
+
+ENV NEXTCLOUD_VERSION 14.0.5RC2
+
+RUN set -ex; \
+    fetchDeps=" \
+        gnupg \
+        dirmngr \
+    "; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends $fetchDeps; \
+    \
+    curl -fsSL -o nextcloud.tar.bz2 \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+# gpg key from https://nextcloud.com/nextcloud.asc
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
+    gpgconf --kill all; \
+    rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    rm -rf /usr/src/nextcloud/updater; \
+    mkdir -p /usr/src/nextcloud/data; \
+    mkdir -p /usr/src/nextcloud/custom_apps; \
+    chmod +x /usr/src/nextcloud/occ; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false $fetchDeps; \
+    rm -rf /var/lib/apt/lists/*
+
+COPY *.sh upgrade.exclude /
+COPY config/* /usr/src/nextcloud/config/
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["apache2-foreground"]
diff --git a/14.0-rc/apache/config/apache-pretty-urls.config.php b/14.0-rc/apache/config/apache-pretty-urls.config.php
new file mode 100644
index 000000000..72da1d8c0
--- /dev/null
+++ b/14.0-rc/apache/config/apache-pretty-urls.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'htaccess.RewriteBase' => '/',
+);
diff --git a/14.0-rc/apache/config/apcu.config.php b/14.0-rc/apache/config/apcu.config.php
new file mode 100644
index 000000000..69fed876a
--- /dev/null
+++ b/14.0-rc/apache/config/apcu.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'memcache.local' => '\OC\Memcache\APCu',
+);
diff --git a/14.0-rc/apache/config/apps.config.php b/14.0-rc/apache/config/apps.config.php
new file mode 100644
index 000000000..a4bed8336
--- /dev/null
+++ b/14.0-rc/apache/config/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$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/14.0-rc/apache/config/autoconfig.php b/14.0-rc/apache/config/autoconfig.php
new file mode 100644
index 000000000..85e02212c
--- /dev/null
+++ b/14.0-rc/apache/config/autoconfig.php
@@ -0,0 +1,29 @@
+<?php
+
+$autoconfig_enabled = false;
+
+if (getenv('SQLITE_DATABASE')) {
+    $AUTOCONFIG["dbtype"] = "sqlite";
+    $AUTOCONFIG["dbname"] = getenv('SQLITE_DATABASE');
+    $autoconfig_enabled = true;
+} elseif (getenv('MYSQL_DATABASE') && getenv('MYSQL_USER') && getenv('MYSQL_PASSWORD') && getenv('MYSQL_HOST')) {
+    $AUTOCONFIG["dbtype"] = "mysql";
+    $AUTOCONFIG["dbname"] = getenv('MYSQL_DATABASE');
+    $AUTOCONFIG["dbuser"] = getenv('MYSQL_USER');
+    $AUTOCONFIG["dbpass"] = getenv('MYSQL_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('MYSQL_HOST');
+    $autoconfig_enabled = true;
+} elseif (getenv('POSTGRES_DB') && getenv('POSTGRES_USER') && getenv('POSTGRES_PASSWORD') && getenv('POSTGRES_HOST')) {
+    $AUTOCONFIG["dbtype"] = "pgsql";
+    $AUTOCONFIG["dbname"] = getenv('POSTGRES_DB');
+    $AUTOCONFIG["dbuser"] = getenv('POSTGRES_USER');
+    $AUTOCONFIG["dbpass"] = getenv('POSTGRES_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('POSTGRES_HOST');
+    $autoconfig_enabled = true;
+}
+
+if ($autoconfig_enabled) {
+    $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
+
+    $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
+}
diff --git a/14.0-rc/apache/config/redis.config.php b/14.0-rc/apache/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/14.0-rc/apache/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/14.0-rc/apache/cron.sh b/14.0-rc/apache/cron.sh
new file mode 100755
index 000000000..4dfa41181
--- /dev/null
+++ b/14.0-rc/apache/cron.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+exec busybox crond -f -l 0 -L /dev/stdout
diff --git a/14.0-rc/apache/entrypoint.sh b/14.0-rc/apache/entrypoint.sh
new file mode 100755
index 000000000..07644c048
--- /dev/null
+++ b/14.0-rc/apache/entrypoint.sh
@@ -0,0 +1,132 @@
+#!/bin/sh
+set -eu
+
+# version_greater A B returns whether A > B
+version_greater() {
+    [ "$(printf '%s\n' "$@" | sort -t '.' -n -k1,1 -k2,2 -k3,3 -k4,4 | head -n 1)" != "$1" ]
+}
+
+# return true if specified directory is empty
+directory_empty() {
+    [ -z "$(ls -A "$1/")" ]
+}
+
+run_as() {
+    if [ "$(id -u)" = 0 ]; then
+        su -p www-data -s /bin/sh -c "$1"
+    else
+        sh -c "$1"
+    fi
+}
+
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UPDATE:-0}" -eq 1 ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
+    # shellcheck disable=SC2016
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+
+    if version_greater "$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
+        echo "Initializing nextcloud $image_version ..."
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            echo "Upgrading nextcloud from $installed_version ..."
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+        fi
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
+
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
+        echo "Initializing finished"
+
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                install=false
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    install=true
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    install=true
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    install=true
+                fi
+
+                if [ "$install" = true ]; then
+                    echo "starting nextcloud installation"
+                    max_retries=10
+                    try=0
+                    until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
+                    do
+                        echo "retrying install..."
+                        try=$((try+1))
+                        sleep 3s
+                    done
+                    if [ "$try" -gt "$max_retries" ]; then
+                        echo "installing of nextcloud failed!"
+                        exit 1
+                    fi
+                    if [ -n "${NEXTCLOUD_TRUSTED_DOMAINS+x}" ]; then
+                        echo "setting trusted domains…"
+                        NC_TRUSTED_DOMAIN_IDX=1
+                        for DOMAIN in $NEXTCLOUD_TRUSTED_DOMAINS ; do
+                            DOMAIN=$(echo "$DOMAIN" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+                            run_as "php /var/www/html/occ config:system:set trusted_domains $NC_TRUSTED_DOMAIN_IDX --value=$DOMAIN"
+                            NC_TRUSTED_DOMAIN_IDX=$(($NC_TRUSTED_DOMAIN_IDX+1))
+                        done
+                    fi
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
+    fi
+fi
+
+exec "$@"
diff --git a/14.0-rc/apache/upgrade.exclude b/14.0-rc/apache/upgrade.exclude
new file mode 100644
index 000000000..a1f2de959
--- /dev/null
+++ b/14.0-rc/apache/upgrade.exclude
@@ -0,0 +1,4 @@
+/config/
+/data/
+/custom_apps/
+/themes/
diff --git a/14.0-rc/fpm-alpine/Dockerfile b/14.0-rc/fpm-alpine/Dockerfile
new file mode 100644
index 000000000..cdca4682e
--- /dev/null
+++ b/14.0-rc/fpm-alpine/Dockerfile
@@ -0,0 +1,122 @@
+# DO NOT EDIT: created by update.sh from Dockerfile-alpine.template
+FROM php:7.2-fpm-alpine3.8
+
+# entrypoint.sh and cron.sh dependencies
+RUN set -ex; \
+    \
+    apk add --no-cache \
+        rsync \
+    ; \
+    \
+    rm /var/spool/cron/crontabs/root; \
+    echo '*/15 * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
+
+# install the PHP extensions we need
+# see https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html
+RUN set -ex; \
+    \
+    apk add --no-cache --virtual .build-deps \
+        $PHPIZE_DEPS \
+        autoconf \
+        freetype-dev \
+        icu-dev \
+        libjpeg-turbo-dev \
+        libmcrypt-dev \
+        libpng-dev \
+        libmemcached-dev \
+        libxml2-dev \
+        openldap-dev \
+        pcre-dev \
+        postgresql-dev \
+        imagemagick-dev \
+    ; \
+    \
+    docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
+    docker-php-ext-configure ldap; \
+    docker-php-ext-install \
+        exif \
+        gd \
+        intl \
+        ldap \
+        opcache \
+        pcntl \
+        pdo_mysql \
+        pdo_pgsql \
+        zip \
+    ; \
+    \
+# pecl will claim success even if one install fails, so we need to perform each install separately
+    pecl install APCu-5.1.15; \
+    pecl install memcached-3.0.4; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
+    \
+    docker-php-ext-enable \
+        apcu \
+        memcached \
+        redis \
+        imagick \
+    ; \
+    \
+    runDeps="$( \
+        scanelf --needed --nobanner --format '%n#p' --recursive /usr/local/lib/php/extensions \
+            | tr ',' '\n' \
+            | sort -u \
+            | awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
+    )"; \
+    apk add --virtual .nextcloud-phpext-rundeps $runDeps; \
+    apk del .build-deps
+
+# set recommended PHP.ini settings
+# see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/server_tuning.html#enable-php-opcache
+RUN { \
+        echo 'opcache.enable=1'; \
+        echo 'opcache.enable_cli=1'; \
+        echo 'opcache.interned_strings_buffer=8'; \
+        echo 'opcache.max_accelerated_files=10000'; \
+        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.save_comments=1'; \
+        echo 'opcache.revalidate_freq=1'; \
+    } > /usr/local/etc/php/conf.d/opcache-recommended.ini; \
+    \
+    echo 'apc.enable_cli=1' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini; \
+    \
+    echo 'memory_limit=512M' > /usr/local/etc/php/conf.d/memory-limit.ini; \
+    \
+    mkdir /var/www/data; \
+    chown -R www-data:root /var/www; \
+    chmod -R g=u /var/www
+
+VOLUME /var/www/html
+
+
+ENV NEXTCLOUD_VERSION 14.0.5RC2
+
+RUN set -ex; \
+    apk add --no-cache --virtual .fetch-deps \
+        bzip2 \
+        gnupg \
+    ; \
+    \
+    curl -fsSL -o nextcloud.tar.bz2 \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+# gpg key from https://nextcloud.com/nextcloud.asc
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
+    gpgconf --kill all; \
+    rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    rm -rf /usr/src/nextcloud/updater; \
+    mkdir -p /usr/src/nextcloud/data; \
+    mkdir -p /usr/src/nextcloud/custom_apps; \
+    chmod +x /usr/src/nextcloud/occ; \
+    apk del .fetch-deps
+
+COPY *.sh upgrade.exclude /
+COPY config/* /usr/src/nextcloud/config/
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["php-fpm"]
diff --git a/14.0-rc/fpm-alpine/config/apcu.config.php b/14.0-rc/fpm-alpine/config/apcu.config.php
new file mode 100644
index 000000000..69fed876a
--- /dev/null
+++ b/14.0-rc/fpm-alpine/config/apcu.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'memcache.local' => '\OC\Memcache\APCu',
+);
diff --git a/14.0-rc/fpm-alpine/config/apps.config.php b/14.0-rc/fpm-alpine/config/apps.config.php
new file mode 100644
index 000000000..a4bed8336
--- /dev/null
+++ b/14.0-rc/fpm-alpine/config/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::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/14.0-rc/fpm-alpine/config/autoconfig.php b/14.0-rc/fpm-alpine/config/autoconfig.php
new file mode 100644
index 000000000..85e02212c
--- /dev/null
+++ b/14.0-rc/fpm-alpine/config/autoconfig.php
@@ -0,0 +1,29 @@
+<?php
+
+$autoconfig_enabled = false;
+
+if (getenv('SQLITE_DATABASE')) {
+    $AUTOCONFIG["dbtype"] = "sqlite";
+    $AUTOCONFIG["dbname"] = getenv('SQLITE_DATABASE');
+    $autoconfig_enabled = true;
+} elseif (getenv('MYSQL_DATABASE') && getenv('MYSQL_USER') && getenv('MYSQL_PASSWORD') && getenv('MYSQL_HOST')) {
+    $AUTOCONFIG["dbtype"] = "mysql";
+    $AUTOCONFIG["dbname"] = getenv('MYSQL_DATABASE');
+    $AUTOCONFIG["dbuser"] = getenv('MYSQL_USER');
+    $AUTOCONFIG["dbpass"] = getenv('MYSQL_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('MYSQL_HOST');
+    $autoconfig_enabled = true;
+} elseif (getenv('POSTGRES_DB') && getenv('POSTGRES_USER') && getenv('POSTGRES_PASSWORD') && getenv('POSTGRES_HOST')) {
+    $AUTOCONFIG["dbtype"] = "pgsql";
+    $AUTOCONFIG["dbname"] = getenv('POSTGRES_DB');
+    $AUTOCONFIG["dbuser"] = getenv('POSTGRES_USER');
+    $AUTOCONFIG["dbpass"] = getenv('POSTGRES_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('POSTGRES_HOST');
+    $autoconfig_enabled = true;
+}
+
+if ($autoconfig_enabled) {
+    $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
+
+    $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
+}
diff --git a/14.0-rc/fpm-alpine/config/redis.config.php b/14.0-rc/fpm-alpine/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/14.0-rc/fpm-alpine/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/14.0-rc/fpm-alpine/cron.sh b/14.0-rc/fpm-alpine/cron.sh
new file mode 100755
index 000000000..4dfa41181
--- /dev/null
+++ b/14.0-rc/fpm-alpine/cron.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+exec busybox crond -f -l 0 -L /dev/stdout
diff --git a/14.0-rc/fpm-alpine/entrypoint.sh b/14.0-rc/fpm-alpine/entrypoint.sh
new file mode 100755
index 000000000..07644c048
--- /dev/null
+++ b/14.0-rc/fpm-alpine/entrypoint.sh
@@ -0,0 +1,132 @@
+#!/bin/sh
+set -eu
+
+# version_greater A B returns whether A > B
+version_greater() {
+    [ "$(printf '%s\n' "$@" | sort -t '.' -n -k1,1 -k2,2 -k3,3 -k4,4 | head -n 1)" != "$1" ]
+}
+
+# return true if specified directory is empty
+directory_empty() {
+    [ -z "$(ls -A "$1/")" ]
+}
+
+run_as() {
+    if [ "$(id -u)" = 0 ]; then
+        su -p www-data -s /bin/sh -c "$1"
+    else
+        sh -c "$1"
+    fi
+}
+
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UPDATE:-0}" -eq 1 ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
+    # shellcheck disable=SC2016
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+
+    if version_greater "$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
+        echo "Initializing nextcloud $image_version ..."
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            echo "Upgrading nextcloud from $installed_version ..."
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+        fi
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
+
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
+        echo "Initializing finished"
+
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                install=false
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    install=true
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    install=true
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    install=true
+                fi
+
+                if [ "$install" = true ]; then
+                    echo "starting nextcloud installation"
+                    max_retries=10
+                    try=0
+                    until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
+                    do
+                        echo "retrying install..."
+                        try=$((try+1))
+                        sleep 3s
+                    done
+                    if [ "$try" -gt "$max_retries" ]; then
+                        echo "installing of nextcloud failed!"
+                        exit 1
+                    fi
+                    if [ -n "${NEXTCLOUD_TRUSTED_DOMAINS+x}" ]; then
+                        echo "setting trusted domains…"
+                        NC_TRUSTED_DOMAIN_IDX=1
+                        for DOMAIN in $NEXTCLOUD_TRUSTED_DOMAINS ; do
+                            DOMAIN=$(echo "$DOMAIN" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+                            run_as "php /var/www/html/occ config:system:set trusted_domains $NC_TRUSTED_DOMAIN_IDX --value=$DOMAIN"
+                            NC_TRUSTED_DOMAIN_IDX=$(($NC_TRUSTED_DOMAIN_IDX+1))
+                        done
+                    fi
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
+    fi
+fi
+
+exec "$@"
diff --git a/14.0-rc/fpm-alpine/upgrade.exclude b/14.0-rc/fpm-alpine/upgrade.exclude
new file mode 100644
index 000000000..a1f2de959
--- /dev/null
+++ b/14.0-rc/fpm-alpine/upgrade.exclude
@@ -0,0 +1,4 @@
+/config/
+/data/
+/custom_apps/
+/themes/
diff --git a/14.0-rc/fpm/Dockerfile b/14.0-rc/fpm/Dockerfile
new file mode 100644
index 000000000..a837018c1
--- /dev/null
+++ b/14.0-rc/fpm/Dockerfile
@@ -0,0 +1,137 @@
+# DO NOT EDIT: created by update.sh from Dockerfile-debian.template
+FROM php:7.2-fpm-stretch
+
+# entrypoint.sh and cron.sh dependencies
+RUN set -ex; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        rsync \
+        bzip2 \
+        busybox-static \
+    ; \
+    rm -rf /var/lib/apt/lists/*; \
+    \
+    mkdir -p /var/spool/cron/crontabs; \
+    echo '*/15 * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
+
+# install the PHP extensions we need
+# see https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libcurl4-openssl-dev \
+        libfreetype6-dev \
+        libicu-dev \
+        libjpeg-dev \
+        libldap2-dev \
+        libmcrypt-dev \
+        libmemcached-dev \
+        libpng-dev \
+        libpq-dev \
+        libxml2-dev \
+        libmagickwand-dev \
+    ; \
+    \
+    debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
+    docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
+    docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
+    docker-php-ext-install \
+        exif \
+        gd \
+        intl \
+        ldap \
+        opcache \
+        pcntl \
+        pdo_mysql \
+        pdo_pgsql \
+        zip \
+    ; \
+    \
+# pecl will claim success even if one install fails, so we need to perform each install separately
+    pecl install APCu-5.1.15; \
+    pecl install memcached-3.0.4; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
+    \
+    docker-php-ext-enable \
+        apcu \
+        memcached \
+        redis \
+        imagick \
+    ; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
+
+# set recommended PHP.ini settings
+# see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/server_tuning.html#enable-php-opcache
+RUN { \
+        echo 'opcache.enable=1'; \
+        echo 'opcache.enable_cli=1'; \
+        echo 'opcache.interned_strings_buffer=8'; \
+        echo 'opcache.max_accelerated_files=10000'; \
+        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.save_comments=1'; \
+        echo 'opcache.revalidate_freq=1'; \
+    } > /usr/local/etc/php/conf.d/opcache-recommended.ini; \
+    \
+    echo 'apc.enable_cli=1' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini; \
+    \
+    echo 'memory_limit=512M' > /usr/local/etc/php/conf.d/memory-limit.ini; \
+    \
+    mkdir /var/www/data; \
+    chown -R www-data:root /var/www; \
+    chmod -R g=u /var/www
+
+VOLUME /var/www/html
+
+
+ENV NEXTCLOUD_VERSION 14.0.5RC2
+
+RUN set -ex; \
+    fetchDeps=" \
+        gnupg \
+        dirmngr \
+    "; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends $fetchDeps; \
+    \
+    curl -fsSL -o nextcloud.tar.bz2 \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+# gpg key from https://nextcloud.com/nextcloud.asc
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
+    gpgconf --kill all; \
+    rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    rm -rf /usr/src/nextcloud/updater; \
+    mkdir -p /usr/src/nextcloud/data; \
+    mkdir -p /usr/src/nextcloud/custom_apps; \
+    chmod +x /usr/src/nextcloud/occ; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false $fetchDeps; \
+    rm -rf /var/lib/apt/lists/*
+
+COPY *.sh upgrade.exclude /
+COPY config/* /usr/src/nextcloud/config/
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["php-fpm"]
diff --git a/14.0-rc/fpm/config/apcu.config.php b/14.0-rc/fpm/config/apcu.config.php
new file mode 100644
index 000000000..69fed876a
--- /dev/null
+++ b/14.0-rc/fpm/config/apcu.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'memcache.local' => '\OC\Memcache\APCu',
+);
diff --git a/14.0-rc/fpm/config/apps.config.php b/14.0-rc/fpm/config/apps.config.php
new file mode 100644
index 000000000..a4bed8336
--- /dev/null
+++ b/14.0-rc/fpm/config/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::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/14.0-rc/fpm/config/autoconfig.php b/14.0-rc/fpm/config/autoconfig.php
new file mode 100644
index 000000000..85e02212c
--- /dev/null
+++ b/14.0-rc/fpm/config/autoconfig.php
@@ -0,0 +1,29 @@
+<?php
+
+$autoconfig_enabled = false;
+
+if (getenv('SQLITE_DATABASE')) {
+    $AUTOCONFIG["dbtype"] = "sqlite";
+    $AUTOCONFIG["dbname"] = getenv('SQLITE_DATABASE');
+    $autoconfig_enabled = true;
+} elseif (getenv('MYSQL_DATABASE') && getenv('MYSQL_USER') && getenv('MYSQL_PASSWORD') && getenv('MYSQL_HOST')) {
+    $AUTOCONFIG["dbtype"] = "mysql";
+    $AUTOCONFIG["dbname"] = getenv('MYSQL_DATABASE');
+    $AUTOCONFIG["dbuser"] = getenv('MYSQL_USER');
+    $AUTOCONFIG["dbpass"] = getenv('MYSQL_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('MYSQL_HOST');
+    $autoconfig_enabled = true;
+} elseif (getenv('POSTGRES_DB') && getenv('POSTGRES_USER') && getenv('POSTGRES_PASSWORD') && getenv('POSTGRES_HOST')) {
+    $AUTOCONFIG["dbtype"] = "pgsql";
+    $AUTOCONFIG["dbname"] = getenv('POSTGRES_DB');
+    $AUTOCONFIG["dbuser"] = getenv('POSTGRES_USER');
+    $AUTOCONFIG["dbpass"] = getenv('POSTGRES_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('POSTGRES_HOST');
+    $autoconfig_enabled = true;
+}
+
+if ($autoconfig_enabled) {
+    $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
+
+    $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
+}
diff --git a/14.0-rc/fpm/config/redis.config.php b/14.0-rc/fpm/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/14.0-rc/fpm/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/14.0-rc/fpm/cron.sh b/14.0-rc/fpm/cron.sh
new file mode 100755
index 000000000..4dfa41181
--- /dev/null
+++ b/14.0-rc/fpm/cron.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+exec busybox crond -f -l 0 -L /dev/stdout
diff --git a/14.0-rc/fpm/entrypoint.sh b/14.0-rc/fpm/entrypoint.sh
new file mode 100755
index 000000000..07644c048
--- /dev/null
+++ b/14.0-rc/fpm/entrypoint.sh
@@ -0,0 +1,132 @@
+#!/bin/sh
+set -eu
+
+# version_greater A B returns whether A > B
+version_greater() {
+    [ "$(printf '%s\n' "$@" | sort -t '.' -n -k1,1 -k2,2 -k3,3 -k4,4 | head -n 1)" != "$1" ]
+}
+
+# return true if specified directory is empty
+directory_empty() {
+    [ -z "$(ls -A "$1/")" ]
+}
+
+run_as() {
+    if [ "$(id -u)" = 0 ]; then
+        su -p www-data -s /bin/sh -c "$1"
+    else
+        sh -c "$1"
+    fi
+}
+
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UPDATE:-0}" -eq 1 ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
+    # shellcheck disable=SC2016
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+
+    if version_greater "$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
+        echo "Initializing nextcloud $image_version ..."
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            echo "Upgrading nextcloud from $installed_version ..."
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+        fi
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
+
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
+        echo "Initializing finished"
+
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                install=false
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    install=true
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    install=true
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    install=true
+                fi
+
+                if [ "$install" = true ]; then
+                    echo "starting nextcloud installation"
+                    max_retries=10
+                    try=0
+                    until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
+                    do
+                        echo "retrying install..."
+                        try=$((try+1))
+                        sleep 3s
+                    done
+                    if [ "$try" -gt "$max_retries" ]; then
+                        echo "installing of nextcloud failed!"
+                        exit 1
+                    fi
+                    if [ -n "${NEXTCLOUD_TRUSTED_DOMAINS+x}" ]; then
+                        echo "setting trusted domains…"
+                        NC_TRUSTED_DOMAIN_IDX=1
+                        for DOMAIN in $NEXTCLOUD_TRUSTED_DOMAINS ; do
+                            DOMAIN=$(echo "$DOMAIN" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+                            run_as "php /var/www/html/occ config:system:set trusted_domains $NC_TRUSTED_DOMAIN_IDX --value=$DOMAIN"
+                            NC_TRUSTED_DOMAIN_IDX=$(($NC_TRUSTED_DOMAIN_IDX+1))
+                        done
+                    fi
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
+    fi
+fi
+
+exec "$@"
diff --git a/14.0-rc/fpm/upgrade.exclude b/14.0-rc/fpm/upgrade.exclude
new file mode 100644
index 000000000..a1f2de959
--- /dev/null
+++ b/14.0-rc/fpm/upgrade.exclude
@@ -0,0 +1,4 @@
+/config/
+/data/
+/custom_apps/
+/themes/
diff --git a/14.0/apache/Dockerfile b/14.0/apache/Dockerfile
index e2b3852e2..5db06fee3 100644
--- a/14.0/apache/Dockerfile
+++ b/14.0/apache/Dockerfile
@@ -33,6 +33,7 @@ RUN set -ex; \
         libpng-dev \
         libpq-dev \
         libxml2-dev \
+        libmagickwand-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
@@ -51,14 +52,16 @@ RUN set -ex; \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
-    pecl install APCu-5.1.12; \
+    pecl install APCu-5.1.15; \
     pecl install memcached-3.0.4; \
-    pecl install redis-4.1.1; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
 # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
@@ -106,7 +109,7 @@ RUN a2enmod rewrite remoteip ;\
     } > /etc/apache2/conf-available/remoteip.conf;\
     a2enconf remoteip
 
-ENV NEXTCLOUD_VERSION 14.0.3
+ENV NEXTCLOUD_VERSION 14.0.4
 
 RUN set -ex; \
     fetchDeps=" \
@@ -122,7 +125,7 @@ RUN set -ex; \
         "https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/14.0/apache/config/redis.config.php b/14.0/apache/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/14.0/apache/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/14.0/apache/entrypoint.sh b/14.0/apache/entrypoint.sh
index 045227e80..07644c048 100755
--- a/14.0/apache/entrypoint.sh
+++ b/14.0/apache/entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/14.0/fpm-alpine/Dockerfile b/14.0/fpm-alpine/Dockerfile
index 4a8c15bfa..d21cf51f2 100644
--- a/14.0/fpm-alpine/Dockerfile
+++ b/14.0/fpm-alpine/Dockerfile
@@ -28,6 +28,7 @@ RUN set -ex; \
         openldap-dev \
         pcre-dev \
         postgresql-dev \
+        imagemagick-dev \
     ; \
     \
     docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
@@ -45,14 +46,16 @@ RUN set -ex; \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
-    pecl install APCu-5.1.12; \
+    pecl install APCu-5.1.15; \
     pecl install memcached-3.0.4; \
-    pecl install redis-4.1.1; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
     runDeps="$( \
@@ -87,7 +90,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 14.0.3
+ENV NEXTCLOUD_VERSION 14.0.4
 
 RUN set -ex; \
     apk add --no-cache --virtual .fetch-deps \
@@ -101,7 +104,7 @@ RUN set -ex; \
         "https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/14.0/fpm-alpine/config/redis.config.php b/14.0/fpm-alpine/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/14.0/fpm-alpine/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/14.0/fpm-alpine/entrypoint.sh b/14.0/fpm-alpine/entrypoint.sh
index 045227e80..07644c048 100755
--- a/14.0/fpm-alpine/entrypoint.sh
+++ b/14.0/fpm-alpine/entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/14.0/fpm/Dockerfile b/14.0/fpm/Dockerfile
index f6a415645..7b388db1c 100644
--- a/14.0/fpm/Dockerfile
+++ b/14.0/fpm/Dockerfile
@@ -33,6 +33,7 @@ RUN set -ex; \
         libpng-dev \
         libpq-dev \
         libxml2-dev \
+        libmagickwand-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
@@ -51,14 +52,16 @@ RUN set -ex; \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
-    pecl install APCu-5.1.12; \
+    pecl install APCu-5.1.15; \
     pecl install memcached-3.0.4; \
-    pecl install redis-4.1.1; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
 # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
@@ -98,7 +101,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 14.0.3
+ENV NEXTCLOUD_VERSION 14.0.4
 
 RUN set -ex; \
     fetchDeps=" \
@@ -114,7 +117,7 @@ RUN set -ex; \
         "https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/14.0/fpm/config/redis.config.php b/14.0/fpm/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/14.0/fpm/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/14.0/fpm/entrypoint.sh b/14.0/fpm/entrypoint.sh
index 045227e80..07644c048 100755
--- a/14.0/fpm/entrypoint.sh
+++ b/14.0/fpm/entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/15.0-rc/apache/Dockerfile b/15.0-rc/apache/Dockerfile
new file mode 100644
index 000000000..dc17a2543
--- /dev/null
+++ b/15.0-rc/apache/Dockerfile
@@ -0,0 +1,145 @@
+# DO NOT EDIT: created by update.sh from Dockerfile-debian.template
+FROM php:7.2-apache-stretch
+
+# entrypoint.sh and cron.sh dependencies
+RUN set -ex; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        rsync \
+        bzip2 \
+        busybox-static \
+    ; \
+    rm -rf /var/lib/apt/lists/*; \
+    \
+    mkdir -p /var/spool/cron/crontabs; \
+    echo '*/15 * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
+
+# install the PHP extensions we need
+# see https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libcurl4-openssl-dev \
+        libfreetype6-dev \
+        libicu-dev \
+        libjpeg-dev \
+        libldap2-dev \
+        libmcrypt-dev \
+        libmemcached-dev \
+        libpng-dev \
+        libpq-dev \
+        libxml2-dev \
+        libmagickwand-dev \
+    ; \
+    \
+    debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
+    docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
+    docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
+    docker-php-ext-install \
+        exif \
+        gd \
+        intl \
+        ldap \
+        opcache \
+        pcntl \
+        pdo_mysql \
+        pdo_pgsql \
+        zip \
+    ; \
+    \
+# pecl will claim success even if one install fails, so we need to perform each install separately
+    pecl install APCu-5.1.15; \
+    pecl install memcached-3.0.4; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
+    \
+    docker-php-ext-enable \
+        apcu \
+        memcached \
+        redis \
+        imagick \
+    ; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
+
+# set recommended PHP.ini settings
+# see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/server_tuning.html#enable-php-opcache
+RUN { \
+        echo 'opcache.enable=1'; \
+        echo 'opcache.enable_cli=1'; \
+        echo 'opcache.interned_strings_buffer=8'; \
+        echo 'opcache.max_accelerated_files=10000'; \
+        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.save_comments=1'; \
+        echo 'opcache.revalidate_freq=1'; \
+    } > /usr/local/etc/php/conf.d/opcache-recommended.ini; \
+    \
+    echo 'apc.enable_cli=1' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini; \
+    \
+    echo 'memory_limit=512M' > /usr/local/etc/php/conf.d/memory-limit.ini; \
+    \
+    mkdir /var/www/data; \
+    chown -R www-data:root /var/www; \
+    chmod -R g=u /var/www
+
+VOLUME /var/www/html
+
+RUN a2enmod rewrite remoteip ;\
+    {\
+     echo RemoteIPHeader X-Real-IP ;\
+     echo RemoteIPTrustedProxy 10.0.0.0/8 ;\
+     echo RemoteIPTrustedProxy 172.16.0.0/12 ;\
+     echo RemoteIPTrustedProxy 192.168.0.0/16 ;\
+    } > /etc/apache2/conf-available/remoteip.conf;\
+    a2enconf remoteip
+
+ENV NEXTCLOUD_VERSION 15.0.1RC2
+
+RUN set -ex; \
+    fetchDeps=" \
+        gnupg \
+        dirmngr \
+    "; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends $fetchDeps; \
+    \
+    curl -fsSL -o nextcloud.tar.bz2 \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+# gpg key from https://nextcloud.com/nextcloud.asc
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
+    gpgconf --kill all; \
+    rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    rm -rf /usr/src/nextcloud/updater; \
+    mkdir -p /usr/src/nextcloud/data; \
+    mkdir -p /usr/src/nextcloud/custom_apps; \
+    chmod +x /usr/src/nextcloud/occ; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false $fetchDeps; \
+    rm -rf /var/lib/apt/lists/*
+
+COPY *.sh upgrade.exclude /
+COPY config/* /usr/src/nextcloud/config/
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["apache2-foreground"]
diff --git a/15.0-rc/apache/config/apache-pretty-urls.config.php b/15.0-rc/apache/config/apache-pretty-urls.config.php
new file mode 100644
index 000000000..72da1d8c0
--- /dev/null
+++ b/15.0-rc/apache/config/apache-pretty-urls.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'htaccess.RewriteBase' => '/',
+);
diff --git a/15.0-rc/apache/config/apcu.config.php b/15.0-rc/apache/config/apcu.config.php
new file mode 100644
index 000000000..69fed876a
--- /dev/null
+++ b/15.0-rc/apache/config/apcu.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'memcache.local' => '\OC\Memcache\APCu',
+);
diff --git a/15.0-rc/apache/config/apps.config.php b/15.0-rc/apache/config/apps.config.php
new file mode 100644
index 000000000..a4bed8336
--- /dev/null
+++ b/15.0-rc/apache/config/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$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/15.0-rc/apache/config/autoconfig.php b/15.0-rc/apache/config/autoconfig.php
new file mode 100644
index 000000000..85e02212c
--- /dev/null
+++ b/15.0-rc/apache/config/autoconfig.php
@@ -0,0 +1,29 @@
+<?php
+
+$autoconfig_enabled = false;
+
+if (getenv('SQLITE_DATABASE')) {
+    $AUTOCONFIG["dbtype"] = "sqlite";
+    $AUTOCONFIG["dbname"] = getenv('SQLITE_DATABASE');
+    $autoconfig_enabled = true;
+} elseif (getenv('MYSQL_DATABASE') && getenv('MYSQL_USER') && getenv('MYSQL_PASSWORD') && getenv('MYSQL_HOST')) {
+    $AUTOCONFIG["dbtype"] = "mysql";
+    $AUTOCONFIG["dbname"] = getenv('MYSQL_DATABASE');
+    $AUTOCONFIG["dbuser"] = getenv('MYSQL_USER');
+    $AUTOCONFIG["dbpass"] = getenv('MYSQL_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('MYSQL_HOST');
+    $autoconfig_enabled = true;
+} elseif (getenv('POSTGRES_DB') && getenv('POSTGRES_USER') && getenv('POSTGRES_PASSWORD') && getenv('POSTGRES_HOST')) {
+    $AUTOCONFIG["dbtype"] = "pgsql";
+    $AUTOCONFIG["dbname"] = getenv('POSTGRES_DB');
+    $AUTOCONFIG["dbuser"] = getenv('POSTGRES_USER');
+    $AUTOCONFIG["dbpass"] = getenv('POSTGRES_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('POSTGRES_HOST');
+    $autoconfig_enabled = true;
+}
+
+if ($autoconfig_enabled) {
+    $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
+
+    $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
+}
diff --git a/15.0-rc/apache/config/redis.config.php b/15.0-rc/apache/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/15.0-rc/apache/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/15.0-rc/apache/cron.sh b/15.0-rc/apache/cron.sh
new file mode 100755
index 000000000..4dfa41181
--- /dev/null
+++ b/15.0-rc/apache/cron.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+exec busybox crond -f -l 0 -L /dev/stdout
diff --git a/15.0-rc/apache/entrypoint.sh b/15.0-rc/apache/entrypoint.sh
new file mode 100755
index 000000000..07644c048
--- /dev/null
+++ b/15.0-rc/apache/entrypoint.sh
@@ -0,0 +1,132 @@
+#!/bin/sh
+set -eu
+
+# version_greater A B returns whether A > B
+version_greater() {
+    [ "$(printf '%s\n' "$@" | sort -t '.' -n -k1,1 -k2,2 -k3,3 -k4,4 | head -n 1)" != "$1" ]
+}
+
+# return true if specified directory is empty
+directory_empty() {
+    [ -z "$(ls -A "$1/")" ]
+}
+
+run_as() {
+    if [ "$(id -u)" = 0 ]; then
+        su -p www-data -s /bin/sh -c "$1"
+    else
+        sh -c "$1"
+    fi
+}
+
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UPDATE:-0}" -eq 1 ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
+    # shellcheck disable=SC2016
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+
+    if version_greater "$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
+        echo "Initializing nextcloud $image_version ..."
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            echo "Upgrading nextcloud from $installed_version ..."
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+        fi
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
+
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
+        echo "Initializing finished"
+
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                install=false
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    install=true
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    install=true
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    install=true
+                fi
+
+                if [ "$install" = true ]; then
+                    echo "starting nextcloud installation"
+                    max_retries=10
+                    try=0
+                    until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
+                    do
+                        echo "retrying install..."
+                        try=$((try+1))
+                        sleep 3s
+                    done
+                    if [ "$try" -gt "$max_retries" ]; then
+                        echo "installing of nextcloud failed!"
+                        exit 1
+                    fi
+                    if [ -n "${NEXTCLOUD_TRUSTED_DOMAINS+x}" ]; then
+                        echo "setting trusted domains…"
+                        NC_TRUSTED_DOMAIN_IDX=1
+                        for DOMAIN in $NEXTCLOUD_TRUSTED_DOMAINS ; do
+                            DOMAIN=$(echo "$DOMAIN" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+                            run_as "php /var/www/html/occ config:system:set trusted_domains $NC_TRUSTED_DOMAIN_IDX --value=$DOMAIN"
+                            NC_TRUSTED_DOMAIN_IDX=$(($NC_TRUSTED_DOMAIN_IDX+1))
+                        done
+                    fi
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
+    fi
+fi
+
+exec "$@"
diff --git a/15.0-rc/apache/upgrade.exclude b/15.0-rc/apache/upgrade.exclude
new file mode 100644
index 000000000..a1f2de959
--- /dev/null
+++ b/15.0-rc/apache/upgrade.exclude
@@ -0,0 +1,4 @@
+/config/
+/data/
+/custom_apps/
+/themes/
diff --git a/15.0-rc/fpm-alpine/Dockerfile b/15.0-rc/fpm-alpine/Dockerfile
new file mode 100644
index 000000000..6f88aa6e7
--- /dev/null
+++ b/15.0-rc/fpm-alpine/Dockerfile
@@ -0,0 +1,122 @@
+# DO NOT EDIT: created by update.sh from Dockerfile-alpine.template
+FROM php:7.2-fpm-alpine3.8
+
+# entrypoint.sh and cron.sh dependencies
+RUN set -ex; \
+    \
+    apk add --no-cache \
+        rsync \
+    ; \
+    \
+    rm /var/spool/cron/crontabs/root; \
+    echo '*/15 * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
+
+# install the PHP extensions we need
+# see https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html
+RUN set -ex; \
+    \
+    apk add --no-cache --virtual .build-deps \
+        $PHPIZE_DEPS \
+        autoconf \
+        freetype-dev \
+        icu-dev \
+        libjpeg-turbo-dev \
+        libmcrypt-dev \
+        libpng-dev \
+        libmemcached-dev \
+        libxml2-dev \
+        openldap-dev \
+        pcre-dev \
+        postgresql-dev \
+        imagemagick-dev \
+    ; \
+    \
+    docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
+    docker-php-ext-configure ldap; \
+    docker-php-ext-install \
+        exif \
+        gd \
+        intl \
+        ldap \
+        opcache \
+        pcntl \
+        pdo_mysql \
+        pdo_pgsql \
+        zip \
+    ; \
+    \
+# pecl will claim success even if one install fails, so we need to perform each install separately
+    pecl install APCu-5.1.15; \
+    pecl install memcached-3.0.4; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
+    \
+    docker-php-ext-enable \
+        apcu \
+        memcached \
+        redis \
+        imagick \
+    ; \
+    \
+    runDeps="$( \
+        scanelf --needed --nobanner --format '%n#p' --recursive /usr/local/lib/php/extensions \
+            | tr ',' '\n' \
+            | sort -u \
+            | awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
+    )"; \
+    apk add --virtual .nextcloud-phpext-rundeps $runDeps; \
+    apk del .build-deps
+
+# set recommended PHP.ini settings
+# see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/server_tuning.html#enable-php-opcache
+RUN { \
+        echo 'opcache.enable=1'; \
+        echo 'opcache.enable_cli=1'; \
+        echo 'opcache.interned_strings_buffer=8'; \
+        echo 'opcache.max_accelerated_files=10000'; \
+        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.save_comments=1'; \
+        echo 'opcache.revalidate_freq=1'; \
+    } > /usr/local/etc/php/conf.d/opcache-recommended.ini; \
+    \
+    echo 'apc.enable_cli=1' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini; \
+    \
+    echo 'memory_limit=512M' > /usr/local/etc/php/conf.d/memory-limit.ini; \
+    \
+    mkdir /var/www/data; \
+    chown -R www-data:root /var/www; \
+    chmod -R g=u /var/www
+
+VOLUME /var/www/html
+
+
+ENV NEXTCLOUD_VERSION 15.0.1RC2
+
+RUN set -ex; \
+    apk add --no-cache --virtual .fetch-deps \
+        bzip2 \
+        gnupg \
+    ; \
+    \
+    curl -fsSL -o nextcloud.tar.bz2 \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+# gpg key from https://nextcloud.com/nextcloud.asc
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
+    gpgconf --kill all; \
+    rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    rm -rf /usr/src/nextcloud/updater; \
+    mkdir -p /usr/src/nextcloud/data; \
+    mkdir -p /usr/src/nextcloud/custom_apps; \
+    chmod +x /usr/src/nextcloud/occ; \
+    apk del .fetch-deps
+
+COPY *.sh upgrade.exclude /
+COPY config/* /usr/src/nextcloud/config/
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["php-fpm"]
diff --git a/15.0-rc/fpm-alpine/config/apcu.config.php b/15.0-rc/fpm-alpine/config/apcu.config.php
new file mode 100644
index 000000000..69fed876a
--- /dev/null
+++ b/15.0-rc/fpm-alpine/config/apcu.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'memcache.local' => '\OC\Memcache\APCu',
+);
diff --git a/15.0-rc/fpm-alpine/config/apps.config.php b/15.0-rc/fpm-alpine/config/apps.config.php
new file mode 100644
index 000000000..a4bed8336
--- /dev/null
+++ b/15.0-rc/fpm-alpine/config/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::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/15.0-rc/fpm-alpine/config/autoconfig.php b/15.0-rc/fpm-alpine/config/autoconfig.php
new file mode 100644
index 000000000..85e02212c
--- /dev/null
+++ b/15.0-rc/fpm-alpine/config/autoconfig.php
@@ -0,0 +1,29 @@
+<?php
+
+$autoconfig_enabled = false;
+
+if (getenv('SQLITE_DATABASE')) {
+    $AUTOCONFIG["dbtype"] = "sqlite";
+    $AUTOCONFIG["dbname"] = getenv('SQLITE_DATABASE');
+    $autoconfig_enabled = true;
+} elseif (getenv('MYSQL_DATABASE') && getenv('MYSQL_USER') && getenv('MYSQL_PASSWORD') && getenv('MYSQL_HOST')) {
+    $AUTOCONFIG["dbtype"] = "mysql";
+    $AUTOCONFIG["dbname"] = getenv('MYSQL_DATABASE');
+    $AUTOCONFIG["dbuser"] = getenv('MYSQL_USER');
+    $AUTOCONFIG["dbpass"] = getenv('MYSQL_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('MYSQL_HOST');
+    $autoconfig_enabled = true;
+} elseif (getenv('POSTGRES_DB') && getenv('POSTGRES_USER') && getenv('POSTGRES_PASSWORD') && getenv('POSTGRES_HOST')) {
+    $AUTOCONFIG["dbtype"] = "pgsql";
+    $AUTOCONFIG["dbname"] = getenv('POSTGRES_DB');
+    $AUTOCONFIG["dbuser"] = getenv('POSTGRES_USER');
+    $AUTOCONFIG["dbpass"] = getenv('POSTGRES_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('POSTGRES_HOST');
+    $autoconfig_enabled = true;
+}
+
+if ($autoconfig_enabled) {
+    $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
+
+    $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
+}
diff --git a/15.0-rc/fpm-alpine/config/redis.config.php b/15.0-rc/fpm-alpine/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/15.0-rc/fpm-alpine/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/15.0-rc/fpm-alpine/cron.sh b/15.0-rc/fpm-alpine/cron.sh
new file mode 100755
index 000000000..4dfa41181
--- /dev/null
+++ b/15.0-rc/fpm-alpine/cron.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+exec busybox crond -f -l 0 -L /dev/stdout
diff --git a/15.0-rc/fpm-alpine/entrypoint.sh b/15.0-rc/fpm-alpine/entrypoint.sh
new file mode 100755
index 000000000..07644c048
--- /dev/null
+++ b/15.0-rc/fpm-alpine/entrypoint.sh
@@ -0,0 +1,132 @@
+#!/bin/sh
+set -eu
+
+# version_greater A B returns whether A > B
+version_greater() {
+    [ "$(printf '%s\n' "$@" | sort -t '.' -n -k1,1 -k2,2 -k3,3 -k4,4 | head -n 1)" != "$1" ]
+}
+
+# return true if specified directory is empty
+directory_empty() {
+    [ -z "$(ls -A "$1/")" ]
+}
+
+run_as() {
+    if [ "$(id -u)" = 0 ]; then
+        su -p www-data -s /bin/sh -c "$1"
+    else
+        sh -c "$1"
+    fi
+}
+
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UPDATE:-0}" -eq 1 ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
+    # shellcheck disable=SC2016
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+
+    if version_greater "$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
+        echo "Initializing nextcloud $image_version ..."
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            echo "Upgrading nextcloud from $installed_version ..."
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+        fi
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
+
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
+        echo "Initializing finished"
+
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                install=false
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    install=true
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    install=true
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    install=true
+                fi
+
+                if [ "$install" = true ]; then
+                    echo "starting nextcloud installation"
+                    max_retries=10
+                    try=0
+                    until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
+                    do
+                        echo "retrying install..."
+                        try=$((try+1))
+                        sleep 3s
+                    done
+                    if [ "$try" -gt "$max_retries" ]; then
+                        echo "installing of nextcloud failed!"
+                        exit 1
+                    fi
+                    if [ -n "${NEXTCLOUD_TRUSTED_DOMAINS+x}" ]; then
+                        echo "setting trusted domains…"
+                        NC_TRUSTED_DOMAIN_IDX=1
+                        for DOMAIN in $NEXTCLOUD_TRUSTED_DOMAINS ; do
+                            DOMAIN=$(echo "$DOMAIN" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+                            run_as "php /var/www/html/occ config:system:set trusted_domains $NC_TRUSTED_DOMAIN_IDX --value=$DOMAIN"
+                            NC_TRUSTED_DOMAIN_IDX=$(($NC_TRUSTED_DOMAIN_IDX+1))
+                        done
+                    fi
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
+    fi
+fi
+
+exec "$@"
diff --git a/15.0-rc/fpm-alpine/upgrade.exclude b/15.0-rc/fpm-alpine/upgrade.exclude
new file mode 100644
index 000000000..a1f2de959
--- /dev/null
+++ b/15.0-rc/fpm-alpine/upgrade.exclude
@@ -0,0 +1,4 @@
+/config/
+/data/
+/custom_apps/
+/themes/
diff --git a/15.0-rc/fpm/Dockerfile b/15.0-rc/fpm/Dockerfile
new file mode 100644
index 000000000..bdb400d92
--- /dev/null
+++ b/15.0-rc/fpm/Dockerfile
@@ -0,0 +1,137 @@
+# DO NOT EDIT: created by update.sh from Dockerfile-debian.template
+FROM php:7.2-fpm-stretch
+
+# entrypoint.sh and cron.sh dependencies
+RUN set -ex; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        rsync \
+        bzip2 \
+        busybox-static \
+    ; \
+    rm -rf /var/lib/apt/lists/*; \
+    \
+    mkdir -p /var/spool/cron/crontabs; \
+    echo '*/15 * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
+
+# install the PHP extensions we need
+# see https://docs.nextcloud.com/server/12/admin_manual/installation/source_installation.html
+RUN set -ex; \
+    \
+    savedAptMark="$(apt-mark showmanual)"; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        libcurl4-openssl-dev \
+        libfreetype6-dev \
+        libicu-dev \
+        libjpeg-dev \
+        libldap2-dev \
+        libmcrypt-dev \
+        libmemcached-dev \
+        libpng-dev \
+        libpq-dev \
+        libxml2-dev \
+        libmagickwand-dev \
+    ; \
+    \
+    debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
+    docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
+    docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
+    docker-php-ext-install \
+        exif \
+        gd \
+        intl \
+        ldap \
+        opcache \
+        pcntl \
+        pdo_mysql \
+        pdo_pgsql \
+        zip \
+    ; \
+    \
+# pecl will claim success even if one install fails, so we need to perform each install separately
+    pecl install APCu-5.1.15; \
+    pecl install memcached-3.0.4; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
+    \
+    docker-php-ext-enable \
+        apcu \
+        memcached \
+        redis \
+        imagick \
+    ; \
+    \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+    apt-mark auto '.*' > /dev/null; \
+    apt-mark manual $savedAptMark; \
+    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
+        | awk '/=>/ { print $3 }' \
+        | sort -u \
+        | xargs -r dpkg-query -S \
+        | cut -d: -f1 \
+        | sort -u \
+        | xargs -rt apt-mark manual; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+    rm -rf /var/lib/apt/lists/*
+
+# set recommended PHP.ini settings
+# see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/server_tuning.html#enable-php-opcache
+RUN { \
+        echo 'opcache.enable=1'; \
+        echo 'opcache.enable_cli=1'; \
+        echo 'opcache.interned_strings_buffer=8'; \
+        echo 'opcache.max_accelerated_files=10000'; \
+        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.save_comments=1'; \
+        echo 'opcache.revalidate_freq=1'; \
+    } > /usr/local/etc/php/conf.d/opcache-recommended.ini; \
+    \
+    echo 'apc.enable_cli=1' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini; \
+    \
+    echo 'memory_limit=512M' > /usr/local/etc/php/conf.d/memory-limit.ini; \
+    \
+    mkdir /var/www/data; \
+    chown -R www-data:root /var/www; \
+    chmod -R g=u /var/www
+
+VOLUME /var/www/html
+
+
+ENV NEXTCLOUD_VERSION 15.0.1RC2
+
+RUN set -ex; \
+    fetchDeps=" \
+        gnupg \
+        dirmngr \
+    "; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends $fetchDeps; \
+    \
+    curl -fsSL -o nextcloud.tar.bz2 \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc \
+        "https://download.nextcloud.com/server/prereleases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+# gpg key from https://nextcloud.com/nextcloud.asc
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
+    gpgconf --kill all; \
+    rm -r "$GNUPGHOME" nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
+    rm -rf /usr/src/nextcloud/updater; \
+    mkdir -p /usr/src/nextcloud/data; \
+    mkdir -p /usr/src/nextcloud/custom_apps; \
+    chmod +x /usr/src/nextcloud/occ; \
+    \
+    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false $fetchDeps; \
+    rm -rf /var/lib/apt/lists/*
+
+COPY *.sh upgrade.exclude /
+COPY config/* /usr/src/nextcloud/config/
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["php-fpm"]
diff --git a/15.0-rc/fpm/config/apcu.config.php b/15.0-rc/fpm/config/apcu.config.php
new file mode 100644
index 000000000..69fed876a
--- /dev/null
+++ b/15.0-rc/fpm/config/apcu.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'memcache.local' => '\OC\Memcache\APCu',
+);
diff --git a/15.0-rc/fpm/config/apps.config.php b/15.0-rc/fpm/config/apps.config.php
new file mode 100644
index 000000000..a4bed8336
--- /dev/null
+++ b/15.0-rc/fpm/config/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::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/15.0-rc/fpm/config/autoconfig.php b/15.0-rc/fpm/config/autoconfig.php
new file mode 100644
index 000000000..85e02212c
--- /dev/null
+++ b/15.0-rc/fpm/config/autoconfig.php
@@ -0,0 +1,29 @@
+<?php
+
+$autoconfig_enabled = false;
+
+if (getenv('SQLITE_DATABASE')) {
+    $AUTOCONFIG["dbtype"] = "sqlite";
+    $AUTOCONFIG["dbname"] = getenv('SQLITE_DATABASE');
+    $autoconfig_enabled = true;
+} elseif (getenv('MYSQL_DATABASE') && getenv('MYSQL_USER') && getenv('MYSQL_PASSWORD') && getenv('MYSQL_HOST')) {
+    $AUTOCONFIG["dbtype"] = "mysql";
+    $AUTOCONFIG["dbname"] = getenv('MYSQL_DATABASE');
+    $AUTOCONFIG["dbuser"] = getenv('MYSQL_USER');
+    $AUTOCONFIG["dbpass"] = getenv('MYSQL_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('MYSQL_HOST');
+    $autoconfig_enabled = true;
+} elseif (getenv('POSTGRES_DB') && getenv('POSTGRES_USER') && getenv('POSTGRES_PASSWORD') && getenv('POSTGRES_HOST')) {
+    $AUTOCONFIG["dbtype"] = "pgsql";
+    $AUTOCONFIG["dbname"] = getenv('POSTGRES_DB');
+    $AUTOCONFIG["dbuser"] = getenv('POSTGRES_USER');
+    $AUTOCONFIG["dbpass"] = getenv('POSTGRES_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('POSTGRES_HOST');
+    $autoconfig_enabled = true;
+}
+
+if ($autoconfig_enabled) {
+    $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
+
+    $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
+}
diff --git a/15.0-rc/fpm/config/redis.config.php b/15.0-rc/fpm/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/15.0-rc/fpm/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/15.0-rc/fpm/cron.sh b/15.0-rc/fpm/cron.sh
new file mode 100755
index 000000000..4dfa41181
--- /dev/null
+++ b/15.0-rc/fpm/cron.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+exec busybox crond -f -l 0 -L /dev/stdout
diff --git a/15.0-rc/fpm/entrypoint.sh b/15.0-rc/fpm/entrypoint.sh
new file mode 100755
index 000000000..07644c048
--- /dev/null
+++ b/15.0-rc/fpm/entrypoint.sh
@@ -0,0 +1,132 @@
+#!/bin/sh
+set -eu
+
+# version_greater A B returns whether A > B
+version_greater() {
+    [ "$(printf '%s\n' "$@" | sort -t '.' -n -k1,1 -k2,2 -k3,3 -k4,4 | head -n 1)" != "$1" ]
+}
+
+# return true if specified directory is empty
+directory_empty() {
+    [ -z "$(ls -A "$1/")" ]
+}
+
+run_as() {
+    if [ "$(id -u)" = 0 ]; then
+        su -p www-data -s /bin/sh -c "$1"
+    else
+        sh -c "$1"
+    fi
+}
+
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UPDATE:-0}" -eq 1 ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
+    # shellcheck disable=SC2016
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+
+    if version_greater "$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
+        echo "Initializing nextcloud $image_version ..."
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            echo "Upgrading nextcloud from $installed_version ..."
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+        fi
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
+
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
+        echo "Initializing finished"
+
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                install=false
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    install=true
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    install=true
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    install=true
+                fi
+
+                if [ "$install" = true ]; then
+                    echo "starting nextcloud installation"
+                    max_retries=10
+                    try=0
+                    until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
+                    do
+                        echo "retrying install..."
+                        try=$((try+1))
+                        sleep 3s
+                    done
+                    if [ "$try" -gt "$max_retries" ]; then
+                        echo "installing of nextcloud failed!"
+                        exit 1
+                    fi
+                    if [ -n "${NEXTCLOUD_TRUSTED_DOMAINS+x}" ]; then
+                        echo "setting trusted domains…"
+                        NC_TRUSTED_DOMAIN_IDX=1
+                        for DOMAIN in $NEXTCLOUD_TRUSTED_DOMAINS ; do
+                            DOMAIN=$(echo "$DOMAIN" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+                            run_as "php /var/www/html/occ config:system:set trusted_domains $NC_TRUSTED_DOMAIN_IDX --value=$DOMAIN"
+                            NC_TRUSTED_DOMAIN_IDX=$(($NC_TRUSTED_DOMAIN_IDX+1))
+                        done
+                    fi
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
+    fi
+fi
+
+exec "$@"
diff --git a/15.0-rc/fpm/upgrade.exclude b/15.0-rc/fpm/upgrade.exclude
new file mode 100644
index 000000000..a1f2de959
--- /dev/null
+++ b/15.0-rc/fpm/upgrade.exclude
@@ -0,0 +1,4 @@
+/config/
+/data/
+/custom_apps/
+/themes/
diff --git a/12.0/apache/Dockerfile b/15.0/apache/Dockerfile
similarity index 93%
rename from 12.0/apache/Dockerfile
rename to 15.0/apache/Dockerfile
index c49048f09..454842aa7 100644
--- a/12.0/apache/Dockerfile
+++ b/15.0/apache/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT: created by update.sh from Dockerfile-debian.template
-FROM php:7.1-apache-stretch
+FROM php:7.2-apache-stretch
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \
@@ -33,6 +33,7 @@ RUN set -ex; \
         libpng-dev \
         libpq-dev \
         libxml2-dev \
+        libmagickwand-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
@@ -51,14 +52,16 @@ RUN set -ex; \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
-    pecl install APCu-5.1.12; \
+    pecl install APCu-5.1.15; \
     pecl install memcached-3.0.4; \
-    pecl install redis-4.1.1; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
 # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
@@ -106,7 +109,7 @@ RUN a2enmod rewrite remoteip ;\
     } > /etc/apache2/conf-available/remoteip.conf;\
     a2enconf remoteip
 
-ENV NEXTCLOUD_VERSION 12.0.12
+ENV NEXTCLOUD_VERSION 15.0.0
 
 RUN set -ex; \
     fetchDeps=" \
@@ -122,7 +125,7 @@ RUN set -ex; \
         "https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/15.0/apache/config/apache-pretty-urls.config.php b/15.0/apache/config/apache-pretty-urls.config.php
new file mode 100644
index 000000000..72da1d8c0
--- /dev/null
+++ b/15.0/apache/config/apache-pretty-urls.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'htaccess.RewriteBase' => '/',
+);
diff --git a/15.0/apache/config/apcu.config.php b/15.0/apache/config/apcu.config.php
new file mode 100644
index 000000000..69fed876a
--- /dev/null
+++ b/15.0/apache/config/apcu.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'memcache.local' => '\OC\Memcache\APCu',
+);
diff --git a/15.0/apache/config/apps.config.php b/15.0/apache/config/apps.config.php
new file mode 100644
index 000000000..a4bed8336
--- /dev/null
+++ b/15.0/apache/config/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::$SERVERROOT."/custom_apps",
+              "url"      => "/custom_apps",
+              "writable" => true,
+      ),
+  ),
+);
diff --git a/15.0/apache/config/autoconfig.php b/15.0/apache/config/autoconfig.php
new file mode 100644
index 000000000..85e02212c
--- /dev/null
+++ b/15.0/apache/config/autoconfig.php
@@ -0,0 +1,29 @@
+<?php
+
+$autoconfig_enabled = false;
+
+if (getenv('SQLITE_DATABASE')) {
+    $AUTOCONFIG["dbtype"] = "sqlite";
+    $AUTOCONFIG["dbname"] = getenv('SQLITE_DATABASE');
+    $autoconfig_enabled = true;
+} elseif (getenv('MYSQL_DATABASE') && getenv('MYSQL_USER') && getenv('MYSQL_PASSWORD') && getenv('MYSQL_HOST')) {
+    $AUTOCONFIG["dbtype"] = "mysql";
+    $AUTOCONFIG["dbname"] = getenv('MYSQL_DATABASE');
+    $AUTOCONFIG["dbuser"] = getenv('MYSQL_USER');
+    $AUTOCONFIG["dbpass"] = getenv('MYSQL_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('MYSQL_HOST');
+    $autoconfig_enabled = true;
+} elseif (getenv('POSTGRES_DB') && getenv('POSTGRES_USER') && getenv('POSTGRES_PASSWORD') && getenv('POSTGRES_HOST')) {
+    $AUTOCONFIG["dbtype"] = "pgsql";
+    $AUTOCONFIG["dbname"] = getenv('POSTGRES_DB');
+    $AUTOCONFIG["dbuser"] = getenv('POSTGRES_USER');
+    $AUTOCONFIG["dbpass"] = getenv('POSTGRES_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('POSTGRES_HOST');
+    $autoconfig_enabled = true;
+}
+
+if ($autoconfig_enabled) {
+    $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
+
+    $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
+}
diff --git a/15.0/apache/config/redis.config.php b/15.0/apache/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/15.0/apache/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/15.0/apache/cron.sh b/15.0/apache/cron.sh
new file mode 100755
index 000000000..4dfa41181
--- /dev/null
+++ b/15.0/apache/cron.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+exec busybox crond -f -l 0 -L /dev/stdout
diff --git a/15.0/apache/entrypoint.sh b/15.0/apache/entrypoint.sh
new file mode 100755
index 000000000..07644c048
--- /dev/null
+++ b/15.0/apache/entrypoint.sh
@@ -0,0 +1,132 @@
+#!/bin/sh
+set -eu
+
+# version_greater A B returns whether A > B
+version_greater() {
+    [ "$(printf '%s\n' "$@" | sort -t '.' -n -k1,1 -k2,2 -k3,3 -k4,4 | head -n 1)" != "$1" ]
+}
+
+# return true if specified directory is empty
+directory_empty() {
+    [ -z "$(ls -A "$1/")" ]
+}
+
+run_as() {
+    if [ "$(id -u)" = 0 ]; then
+        su -p www-data -s /bin/sh -c "$1"
+    else
+        sh -c "$1"
+    fi
+}
+
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UPDATE:-0}" -eq 1 ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
+    # shellcheck disable=SC2016
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+
+    if version_greater "$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
+        echo "Initializing nextcloud $image_version ..."
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            echo "Upgrading nextcloud from $installed_version ..."
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+        fi
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
+
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
+        echo "Initializing finished"
+
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                install=false
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    install=true
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    install=true
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    install=true
+                fi
+
+                if [ "$install" = true ]; then
+                    echo "starting nextcloud installation"
+                    max_retries=10
+                    try=0
+                    until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
+                    do
+                        echo "retrying install..."
+                        try=$((try+1))
+                        sleep 3s
+                    done
+                    if [ "$try" -gt "$max_retries" ]; then
+                        echo "installing of nextcloud failed!"
+                        exit 1
+                    fi
+                    if [ -n "${NEXTCLOUD_TRUSTED_DOMAINS+x}" ]; then
+                        echo "setting trusted domains…"
+                        NC_TRUSTED_DOMAIN_IDX=1
+                        for DOMAIN in $NEXTCLOUD_TRUSTED_DOMAINS ; do
+                            DOMAIN=$(echo "$DOMAIN" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+                            run_as "php /var/www/html/occ config:system:set trusted_domains $NC_TRUSTED_DOMAIN_IDX --value=$DOMAIN"
+                            NC_TRUSTED_DOMAIN_IDX=$(($NC_TRUSTED_DOMAIN_IDX+1))
+                        done
+                    fi
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
+    fi
+fi
+
+exec "$@"
diff --git a/15.0/apache/upgrade.exclude b/15.0/apache/upgrade.exclude
new file mode 100644
index 000000000..a1f2de959
--- /dev/null
+++ b/15.0/apache/upgrade.exclude
@@ -0,0 +1,4 @@
+/config/
+/data/
+/custom_apps/
+/themes/
diff --git a/12.0/fpm-alpine/Dockerfile b/15.0/fpm-alpine/Dockerfile
similarity index 91%
rename from 12.0/fpm-alpine/Dockerfile
rename to 15.0/fpm-alpine/Dockerfile
index 00ce909cb..d6ac2a2e2 100644
--- a/12.0/fpm-alpine/Dockerfile
+++ b/15.0/fpm-alpine/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT: created by update.sh from Dockerfile-alpine.template
-FROM php:7.1-fpm-alpine3.8
+FROM php:7.2-fpm-alpine3.8
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \
@@ -28,6 +28,7 @@ RUN set -ex; \
         openldap-dev \
         pcre-dev \
         postgresql-dev \
+        imagemagick-dev \
     ; \
     \
     docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
@@ -45,14 +46,16 @@ RUN set -ex; \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
-    pecl install APCu-5.1.12; \
+    pecl install APCu-5.1.15; \
     pecl install memcached-3.0.4; \
-    pecl install redis-4.1.1; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
     runDeps="$( \
@@ -87,7 +90,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 12.0.12
+ENV NEXTCLOUD_VERSION 15.0.0
 
 RUN set -ex; \
     apk add --no-cache --virtual .fetch-deps \
@@ -101,7 +104,7 @@ RUN set -ex; \
         "https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/15.0/fpm-alpine/config/apcu.config.php b/15.0/fpm-alpine/config/apcu.config.php
new file mode 100644
index 000000000..69fed876a
--- /dev/null
+++ b/15.0/fpm-alpine/config/apcu.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'memcache.local' => '\OC\Memcache\APCu',
+);
diff --git a/15.0/fpm-alpine/config/apps.config.php b/15.0/fpm-alpine/config/apps.config.php
new file mode 100644
index 000000000..a4bed8336
--- /dev/null
+++ b/15.0/fpm-alpine/config/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$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/15.0/fpm-alpine/config/autoconfig.php b/15.0/fpm-alpine/config/autoconfig.php
new file mode 100644
index 000000000..85e02212c
--- /dev/null
+++ b/15.0/fpm-alpine/config/autoconfig.php
@@ -0,0 +1,29 @@
+<?php
+
+$autoconfig_enabled = false;
+
+if (getenv('SQLITE_DATABASE')) {
+    $AUTOCONFIG["dbtype"] = "sqlite";
+    $AUTOCONFIG["dbname"] = getenv('SQLITE_DATABASE');
+    $autoconfig_enabled = true;
+} elseif (getenv('MYSQL_DATABASE') && getenv('MYSQL_USER') && getenv('MYSQL_PASSWORD') && getenv('MYSQL_HOST')) {
+    $AUTOCONFIG["dbtype"] = "mysql";
+    $AUTOCONFIG["dbname"] = getenv('MYSQL_DATABASE');
+    $AUTOCONFIG["dbuser"] = getenv('MYSQL_USER');
+    $AUTOCONFIG["dbpass"] = getenv('MYSQL_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('MYSQL_HOST');
+    $autoconfig_enabled = true;
+} elseif (getenv('POSTGRES_DB') && getenv('POSTGRES_USER') && getenv('POSTGRES_PASSWORD') && getenv('POSTGRES_HOST')) {
+    $AUTOCONFIG["dbtype"] = "pgsql";
+    $AUTOCONFIG["dbname"] = getenv('POSTGRES_DB');
+    $AUTOCONFIG["dbuser"] = getenv('POSTGRES_USER');
+    $AUTOCONFIG["dbpass"] = getenv('POSTGRES_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('POSTGRES_HOST');
+    $autoconfig_enabled = true;
+}
+
+if ($autoconfig_enabled) {
+    $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
+
+    $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
+}
diff --git a/15.0/fpm-alpine/config/redis.config.php b/15.0/fpm-alpine/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/15.0/fpm-alpine/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/15.0/fpm-alpine/cron.sh b/15.0/fpm-alpine/cron.sh
new file mode 100755
index 000000000..4dfa41181
--- /dev/null
+++ b/15.0/fpm-alpine/cron.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+exec busybox crond -f -l 0 -L /dev/stdout
diff --git a/15.0/fpm-alpine/entrypoint.sh b/15.0/fpm-alpine/entrypoint.sh
new file mode 100755
index 000000000..07644c048
--- /dev/null
+++ b/15.0/fpm-alpine/entrypoint.sh
@@ -0,0 +1,132 @@
+#!/bin/sh
+set -eu
+
+# version_greater A B returns whether A > B
+version_greater() {
+    [ "$(printf '%s\n' "$@" | sort -t '.' -n -k1,1 -k2,2 -k3,3 -k4,4 | head -n 1)" != "$1" ]
+}
+
+# return true if specified directory is empty
+directory_empty() {
+    [ -z "$(ls -A "$1/")" ]
+}
+
+run_as() {
+    if [ "$(id -u)" = 0 ]; then
+        su -p www-data -s /bin/sh -c "$1"
+    else
+        sh -c "$1"
+    fi
+}
+
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UPDATE:-0}" -eq 1 ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
+    # shellcheck disable=SC2016
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+
+    if version_greater "$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
+        echo "Initializing nextcloud $image_version ..."
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            echo "Upgrading nextcloud from $installed_version ..."
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+        fi
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
+
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
+        echo "Initializing finished"
+
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                install=false
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    install=true
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    install=true
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    install=true
+                fi
+
+                if [ "$install" = true ]; then
+                    echo "starting nextcloud installation"
+                    max_retries=10
+                    try=0
+                    until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
+                    do
+                        echo "retrying install..."
+                        try=$((try+1))
+                        sleep 3s
+                    done
+                    if [ "$try" -gt "$max_retries" ]; then
+                        echo "installing of nextcloud failed!"
+                        exit 1
+                    fi
+                    if [ -n "${NEXTCLOUD_TRUSTED_DOMAINS+x}" ]; then
+                        echo "setting trusted domains…"
+                        NC_TRUSTED_DOMAIN_IDX=1
+                        for DOMAIN in $NEXTCLOUD_TRUSTED_DOMAINS ; do
+                            DOMAIN=$(echo "$DOMAIN" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+                            run_as "php /var/www/html/occ config:system:set trusted_domains $NC_TRUSTED_DOMAIN_IDX --value=$DOMAIN"
+                            NC_TRUSTED_DOMAIN_IDX=$(($NC_TRUSTED_DOMAIN_IDX+1))
+                        done
+                    fi
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
+    fi
+fi
+
+exec "$@"
diff --git a/15.0/fpm-alpine/upgrade.exclude b/15.0/fpm-alpine/upgrade.exclude
new file mode 100644
index 000000000..a1f2de959
--- /dev/null
+++ b/15.0/fpm-alpine/upgrade.exclude
@@ -0,0 +1,4 @@
+/config/
+/data/
+/custom_apps/
+/themes/
diff --git a/12.0/fpm/Dockerfile b/15.0/fpm/Dockerfile
similarity index 93%
rename from 12.0/fpm/Dockerfile
rename to 15.0/fpm/Dockerfile
index a85c2224c..8cc1df2ad 100644
--- a/12.0/fpm/Dockerfile
+++ b/15.0/fpm/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT: created by update.sh from Dockerfile-debian.template
-FROM php:7.1-fpm-stretch
+FROM php:7.2-fpm-stretch
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \
@@ -33,6 +33,7 @@ RUN set -ex; \
         libpng-dev \
         libpq-dev \
         libxml2-dev \
+        libmagickwand-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
@@ -51,14 +52,16 @@ RUN set -ex; \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
-    pecl install APCu-5.1.12; \
+    pecl install APCu-5.1.15; \
     pecl install memcached-3.0.4; \
-    pecl install redis-4.1.1; \
+    pecl install redis-4.2.0; \
+    pecl install imagick-3.4.3; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
 # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
@@ -98,7 +101,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 12.0.12
+ENV NEXTCLOUD_VERSION 15.0.0
 
 RUN set -ex; \
     fetchDeps=" \
@@ -114,7 +117,7 @@ RUN set -ex; \
         "https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/15.0/fpm/config/apcu.config.php b/15.0/fpm/config/apcu.config.php
new file mode 100644
index 000000000..69fed876a
--- /dev/null
+++ b/15.0/fpm/config/apcu.config.php
@@ -0,0 +1,4 @@
+<?php
+$CONFIG = array (
+  'memcache.local' => '\OC\Memcache\APCu',
+);
diff --git a/15.0/fpm/config/apps.config.php b/15.0/fpm/config/apps.config.php
new file mode 100644
index 000000000..a4bed8336
--- /dev/null
+++ b/15.0/fpm/config/apps.config.php
@@ -0,0 +1,15 @@
+<?php
+$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/15.0/fpm/config/autoconfig.php b/15.0/fpm/config/autoconfig.php
new file mode 100644
index 000000000..85e02212c
--- /dev/null
+++ b/15.0/fpm/config/autoconfig.php
@@ -0,0 +1,29 @@
+<?php
+
+$autoconfig_enabled = false;
+
+if (getenv('SQLITE_DATABASE')) {
+    $AUTOCONFIG["dbtype"] = "sqlite";
+    $AUTOCONFIG["dbname"] = getenv('SQLITE_DATABASE');
+    $autoconfig_enabled = true;
+} elseif (getenv('MYSQL_DATABASE') && getenv('MYSQL_USER') && getenv('MYSQL_PASSWORD') && getenv('MYSQL_HOST')) {
+    $AUTOCONFIG["dbtype"] = "mysql";
+    $AUTOCONFIG["dbname"] = getenv('MYSQL_DATABASE');
+    $AUTOCONFIG["dbuser"] = getenv('MYSQL_USER');
+    $AUTOCONFIG["dbpass"] = getenv('MYSQL_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('MYSQL_HOST');
+    $autoconfig_enabled = true;
+} elseif (getenv('POSTGRES_DB') && getenv('POSTGRES_USER') && getenv('POSTGRES_PASSWORD') && getenv('POSTGRES_HOST')) {
+    $AUTOCONFIG["dbtype"] = "pgsql";
+    $AUTOCONFIG["dbname"] = getenv('POSTGRES_DB');
+    $AUTOCONFIG["dbuser"] = getenv('POSTGRES_USER');
+    $AUTOCONFIG["dbpass"] = getenv('POSTGRES_PASSWORD');
+    $AUTOCONFIG["dbhost"] = getenv('POSTGRES_HOST');
+    $autoconfig_enabled = true;
+}
+
+if ($autoconfig_enabled) {
+    $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
+
+    $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
+}
diff --git a/15.0/fpm/config/redis.config.php b/15.0/fpm/config/redis.config.php
new file mode 100644
index 000000000..c41f7fc3b
--- /dev/null
+++ b/15.0/fpm/config/redis.config.php
@@ -0,0 +1,12 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array (
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'port' => getenv('REDIS_PORT') ?: 6379,
+    ),
+  );
+}
+
diff --git a/15.0/fpm/cron.sh b/15.0/fpm/cron.sh
new file mode 100755
index 000000000..4dfa41181
--- /dev/null
+++ b/15.0/fpm/cron.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+exec busybox crond -f -l 0 -L /dev/stdout
diff --git a/15.0/fpm/entrypoint.sh b/15.0/fpm/entrypoint.sh
new file mode 100755
index 000000000..07644c048
--- /dev/null
+++ b/15.0/fpm/entrypoint.sh
@@ -0,0 +1,132 @@
+#!/bin/sh
+set -eu
+
+# version_greater A B returns whether A > B
+version_greater() {
+    [ "$(printf '%s\n' "$@" | sort -t '.' -n -k1,1 -k2,2 -k3,3 -k4,4 | head -n 1)" != "$1" ]
+}
+
+# return true if specified directory is empty
+directory_empty() {
+    [ -z "$(ls -A "$1/")" ]
+}
+
+run_as() {
+    if [ "$(id -u)" = 0 ]; then
+        su -p www-data -s /bin/sh -c "$1"
+    else
+        sh -c "$1"
+    fi
+}
+
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UPDATE:-0}" -eq 1 ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
+    # shellcheck disable=SC2016
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+
+    if version_greater "$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
+        echo "Initializing nextcloud $image_version ..."
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            echo "Upgrading nextcloud from $installed_version ..."
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+        fi
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
+
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
+        echo "Initializing finished"
+
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                install=false
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    install=true
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    install=true
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    install=true
+                fi
+
+                if [ "$install" = true ]; then
+                    echo "starting nextcloud installation"
+                    max_retries=10
+                    try=0
+                    until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
+                    do
+                        echo "retrying install..."
+                        try=$((try+1))
+                        sleep 3s
+                    done
+                    if [ "$try" -gt "$max_retries" ]; then
+                        echo "installing of nextcloud failed!"
+                        exit 1
+                    fi
+                    if [ -n "${NEXTCLOUD_TRUSTED_DOMAINS+x}" ]; then
+                        echo "setting trusted domains…"
+                        NC_TRUSTED_DOMAIN_IDX=1
+                        for DOMAIN in $NEXTCLOUD_TRUSTED_DOMAINS ; do
+                            DOMAIN=$(echo "$DOMAIN" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+                            run_as "php /var/www/html/occ config:system:set trusted_domains $NC_TRUSTED_DOMAIN_IDX --value=$DOMAIN"
+                            NC_TRUSTED_DOMAIN_IDX=$(($NC_TRUSTED_DOMAIN_IDX+1))
+                        done
+                    fi
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
+    fi
+fi
+
+exec "$@"
diff --git a/15.0/fpm/upgrade.exclude b/15.0/fpm/upgrade.exclude
new file mode 100644
index 000000000..a1f2de959
--- /dev/null
+++ b/15.0/fpm/upgrade.exclude
@@ -0,0 +1,4 @@
+/config/
+/data/
+/custom_apps/
+/themes/
diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index 9bb6e9eb0..4d282f541 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -27,6 +27,7 @@ RUN set -ex; \
         openldap-dev \
         pcre-dev \
         postgresql-dev \
+        imagemagick-dev \
     ; \
     \
     docker-php-ext-configure gd --with-freetype-dir=/usr --with-png-dir=/usr --with-jpeg-dir=/usr; \
@@ -47,11 +48,13 @@ RUN set -ex; \
     pecl install APCu-%%APCU_VERSION%%; \
     pecl install memcached-%%MEMCACHED_VERSION%%; \
     pecl install redis-%%REDIS_VERSION%%; \
+    pecl install imagick-%%IMAGICK_VERSION%%; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
     runDeps="$( \
@@ -100,7 +103,7 @@ RUN set -ex; \
         "%%BASE_DOWNLOAD_URL%%/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/Dockerfile-debian.template b/Dockerfile-debian.template
index 54c28425c..d10ae3672 100644
--- a/Dockerfile-debian.template
+++ b/Dockerfile-debian.template
@@ -32,6 +32,7 @@ RUN set -ex; \
         libpng-dev \
         libpq-dev \
         libxml2-dev \
+        libmagickwand-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
@@ -53,11 +54,13 @@ RUN set -ex; \
     pecl install APCu-%%APCU_VERSION%%; \
     pecl install memcached-%%MEMCACHED_VERSION%%; \
     pecl install redis-%%REDIS_VERSION%%; \
+    pecl install imagick-%%IMAGICK_VERSION%%; \
     \
     docker-php-ext-enable \
         apcu \
         memcached \
         redis \
+        imagick \
     ; \
     \
 # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
@@ -113,7 +116,7 @@ RUN set -ex; \
         "%%BASE_DOWNLOAD_URL%%/nextcloud-${NEXTCLOUD_VERSION}.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
+    gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
     gpg --batch --verify nextcloud.tar.bz2.asc nextcloud.tar.bz2; \
     tar -xjf nextcloud.tar.bz2 -C /usr/src/; \
     gpgconf --kill all; \
diff --git a/README.md b/README.md
index 0d712c01c..06189890a 100644
--- a/README.md
+++ b/README.md
@@ -130,6 +130,10 @@ The install and update script is only triggered when a default command is used (
 
 - `NEXTCLOUD_UPDATE` (default: _0_)
 
+If you want to use Redis you have to create a seperate [Redis](https://hub.docker.com/_/redis/) container in your setup / in your docker-compose file. To inform Nextcloud about the Redis container add:
+
+- 'REDIS_HOST' (not set by default) Name of Redis container
+- 'REDIS_PORT' (optional, default:_6379_) Port number of Redis container. Use only if you use a non-standard port.
 
 
 # Running this image with docker-compose
@@ -152,6 +156,7 @@ volumes:
 services:
   db:
     image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql
@@ -192,6 +197,7 @@ volumes:
 services:
   db:
     image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 045227e80..07644c048 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -90,7 +90,7 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                 fi
 
                 if [ "$install" = true ]; then
-                    echo "starting nexcloud installation"
+                    echo "starting nextcloud installation"
                     max_retries=10
                     try=0
                     until run_as "php /var/www/html/occ maintenance:install $install_options" || [ "$try" -gt "$max_retries" ]
diff --git a/generate-stackbrew-library.sh b/generate-stackbrew-library.sh
index af901b367..3e72a0c8b 100755
--- a/generate-stackbrew-library.sh
+++ b/generate-stackbrew-library.sh
@@ -2,8 +2,8 @@
 set -Eeuo pipefail
 
 declare -A release_channel=(
-	[production]='13.0.7'
-	[stable]='13.0.7'
+	[production]='13.0.8'
+	[stable]='14.0.4'
 )
 
 self="$(basename "$BASH_SOURCE")"
diff --git a/update.sh b/update.sh
index 16c1104cc..8a3236355 100755
--- a/update.sh
+++ b/update.sh
@@ -25,9 +25,10 @@ declare -A extras=(
 )
 
 declare -A pecl_versions=(
-	[APCu]='5.1.12'
+	[APCu]='5.1.15'
 	[memcached]='3.0.4'
-	[redis]='4.1.1'
+	[redis]='4.2.0'
+	[imagick]='3.4.3'
 )
 
 variants=(
@@ -36,7 +37,7 @@ variants=(
 	fpm-alpine
 )
 
-min_version='12.0'
+min_version='13.0'
 
 # version_greater_or_equal A B returns whether A >= B
 function version_greater_or_equal() {
@@ -78,6 +79,7 @@ function create_variant() {
 		s/%%APCU_VERSION%%/'"${pecl_versions[APCu]}"'/g;
 		s/%%MEMCACHED_VERSION%%/'"${pecl_versions[memcached]}"'/g;
 		s/%%REDIS_VERSION%%/'"${pecl_versions[redis]}"'/g;
+		s/%%IMAGICK_VERSION%%/'"${pecl_versions[imagick]}"'/g;
 	' "$dir/Dockerfile"
 
 	# Copy the shell scripts
@@ -97,7 +99,7 @@ function create_variant() {
 	fi
 
 	for arch in i386 amd64; do
-		travisEnv='\n    - env: VERSION='"$1"' VARIANT='"$variant"' ARCH='"$arch$travisEnv"
+		travisEnv='    - env: VERSION='"$1"' VARIANT='"$variant"' ARCH='"$arch"'\n'"$travisEnv"
 	done
 }
 
@@ -160,9 +162,10 @@ for version in "${versions_beta[@]}"; do
 	fi
 done
 
+# remove everything after '- stage: test images'
+travis="$(awk '!p; /- stage: test images/ {p=1}' .travis.yml)"
+echo "$travis" > .travis.yml
+
 # replace the fist '-' with ' '
 travisEnv="$(echo "$travisEnv" | sed '0,/-/{s/-/ /}')"
-
-# update .travis.yml
-travis="$(awk -v 'RS=\n\n' '$1 == "-" && $2 == "stage:" && $3 == "test" && $4 == "images" { $0 = "    - stage: test images'"$travisEnv"'" } { printf "%s%s", $0, RS }' .travis.yml)"
-echo "$travis"  > .travis.yml
+printf "$travisEnv" >> .travis.yml