diff --git a/.github/docker-image-build.sh b/.github/docker-image-build.sh
deleted file mode 100755
index fbe0f14..0000000
--- a/.github/docker-image-build.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env bash
-#
-# build zammads docker & docker-compose images
-
-set -o errexit
-set -o pipefail
-
-DOCKER_IMAGE="zammad"
-
-echo "Build Zammad Docker image ${DOCKER_IMAGE} for local or ci tests"
-docker build --pull --no-cache --build-arg BUILD_DATE="$(date -u +'%Y-%m-%dT%H:%M:%SZ')" -t "${DOCKER_IMAGE}-local" -f "containers/${DOCKER_IMAGE}/Dockerfile" .
diff --git a/.github/release-drafter.yml b/.github/release-drafter.yml
new file mode 100644
index 0000000..32df821
--- /dev/null
+++ b/.github/release-drafter.yml
@@ -0,0 +1,35 @@
+name-template: "$RESOLVED_VERSION"
+tag-template: "$RESOLVED_VERSION"
+categories:
+  - title: "🚀 Features"
+    labels:
+      - "feature"
+      - "enhancement"
+  - title: "🐛 Bug Fixes"
+    labels:
+      - "fix"
+      - "bugfix"
+      - "bug"
+  - title: "🧹 Maintenance"
+    labels:
+      - "chore"
+      - "dependencies"
+version-resolver:
+  major:
+    labels:
+      - "feature"
+  minor:
+    labels:
+      - "enhancement"
+  patch:
+    labels:
+      - "fix"
+      - "bugfix"
+      - "bug"
+      - "chore"
+      - "dependencies"
+  default: patch
+template: |
+  ## Changes
+
+  $CHANGES
diff --git a/.github/workflows/ci-remote-image.yaml b/.github/workflows/ci-remote-image.yaml
index 1f387b9..e57f5c7 100644
--- a/.github/workflows/ci-remote-image.yaml
+++ b/.github/workflows/ci-remote-image.yaml
@@ -3,8 +3,6 @@ name: ci-remote-image
 
 on:
   pull_request:
-    paths:
-      - '.env'
 
 jobs:
   run-remote-image-docker-compose:
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 5fbfed3..85cce0d 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -30,25 +30,3 @@ jobs:
           LINTER_RULES_PATH: .github/linters
           VALIDATE_ALL_CODEBASE: false
           VALIDATE_JSCPD: false
-
-  build-and-run-docker-compose:
-    needs:
-      - lint-docker-compose-file
-      - super-linter
-    timeout-minutes: 20
-    runs-on: ubuntu-22.04
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-
-      - name: build docker containers
-        run: .github/docker-image-build.sh
-
-      - name: run docker-compose up
-        run: docker-compose -f docker-compose.yml -f docker-compose.override.yml -f docker-compose.override-local.yml up --detach
-
-      - name: add autowizard file
-        run: docker cp .github/auto_wizard.json zammad-docker-compose_zammad-railsserver_1:/opt/zammad
-
-      - name: run tests
-        run: .github/tests.sh
diff --git a/.github/workflows/release-drafter.yaml b/.github/workflows/release-drafter.yaml
new file mode 100644
index 0000000..46e6a10
--- /dev/null
+++ b/.github/workflows/release-drafter.yaml
@@ -0,0 +1,22 @@
+name: Release Drafter
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+permissions:
+  contents: read
+
+jobs:
+  update_release_draft:
+    permissions:
+      contents: write
+      pull-requests: write
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/containers/zammad/Dockerfile b/containers/zammad/Dockerfile
deleted file mode 100644
index 7c898d2..0000000
--- a/containers/zammad/Dockerfile
+++ /dev/null
@@ -1,65 +0,0 @@
-# note: zammad is currently incompatible to alpine because of:
-# https://github.com/docker-library/ruby/issues/113
-FROM ruby:3.0.4-slim AS builder
-
-ARG BUILD_DATE
-ARG DEBIAN_FRONTEND=noninteractive
-
-ENV GIT_BRANCH stable
-ENV GIT_URL ${PROJECT_URL}.git
-ENV PROJECT_URL https://github.com/zammad/zammad
-ENV RAILS_ENV production
-ENV RAILS_LOG_TO_STDOUT true
-ENV TAR_GZ_URL ${PROJECT_URL}/archive/${GIT_BRANCH}.tar.gz
-ENV ZAMMAD_DIR /opt/zammad
-ENV ZAMMAD_READY_FILE ${ZAMMAD_DIR}/tmp/zammad.ready
-ENV ZAMMAD_TMP_DIR /tmp/zammad-${GIT_BRANCH}
-ENV ZAMMAD_USER zammad
-
-SHELL ["/bin/bash", "-e", "-o", "pipefail", "-c"]
-
-# install zammad
-COPY containers/zammad/setup.sh /tmp
-RUN chmod +x /tmp/setup.sh; \
-    /tmp/setup.sh builder
-
-
-FROM ruby:3.0.4-slim
-
-ARG BUILD_DATE
-ARG DEBIAN_FRONTEND=noninteractive
-
-LABEL org.label-schema.build-date="$BUILD_DATE" \
-      org.label-schema.name="Zammad" \
-      org.label-schema.license="AGPL-3.0" \
-      org.label-schema.description="Docker container for Zammad - Data Container" \
-      org.label-schema.url="https://zammad.org" \
-      org.label-schema.vcs-url="https://github.com/zammad/zammad" \
-      org.label-schema.vcs-type="Git" \
-      org.label-schema.vendor="Zammad" \
-      org.label-schema.schema-version="5.2.3" \
-      org.label-schema.docker.cmd="sysctl -w vm.max_map_count=262144;docker-compose up"
-
-ENV GIT_BRANCH stable
-ENV RAILS_ENV production
-ENV RAILS_LOG_TO_STDOUT true
-ENV ZAMMAD_DIR /opt/zammad
-ENV ZAMMAD_READY_FILE ${ZAMMAD_DIR}/tmp/zammad.ready
-ENV ZAMMAD_TMP_DIR /tmp/zammad-${GIT_BRANCH}
-ENV ZAMMAD_USER zammad
-
-COPY containers/zammad/setup.sh /tmp
-RUN chmod +x /tmp/setup.sh; \
-    /tmp/setup.sh runner
-
-COPY --from=builder ${ZAMMAD_TMP_DIR} ${ZAMMAD_TMP_DIR}
-COPY --from=builder /usr/local/bundle /usr/local/bundle
-
-# docker init
-COPY containers/zammad/docker-entrypoint.sh /
-RUN chmod +x /docker-entrypoint.sh
-ENTRYPOINT ["/docker-entrypoint.sh"]
-
-USER zammad
-
-WORKDIR ${ZAMMAD_DIR}
diff --git a/containers/zammad/docker-entrypoint.sh b/containers/zammad/docker-entrypoint.sh
deleted file mode 100755
index c718e60..0000000
--- a/containers/zammad/docker-entrypoint.sh
+++ /dev/null
@@ -1,173 +0,0 @@
-#!/usr/bin/env bash
-
-set -e
-
-: "${AUTOWIZARD_JSON:=''}"
-: "${ELASTICSEARCH_ENABLED:=true}"
-: "${ELASTICSEARCH_HOST:=zammad-elasticsearch}"
-: "${ELASTICSEARCH_PORT:=9200}"
-: "${ELASTICSEARCH_SCHEMA:=http}"
-: "${ELASTICSEARCH_NAMESPACE:=zammad}"
-: "${ELASTICSEARCH_REINDEX:=true}"
-: "${ELASTICSEARCH_SSL_VERIFY:=true}"
-: "${NGINX_PORT:=8080}"
-: "${NGINX_SERVER_NAME:=_}"
-: "${NGINX_SERVER_SCHEME:=\$scheme}"
-: "${POSTGRESQL_HOST:=zammad-postgresql}"
-: "${POSTGRESQL_PORT:=5432}"
-: "${POSTGRESQL_USER:=zammad}"
-: "${POSTGRESQL_PASS:=zammad}"
-: "${POSTGRESQL_DB:=zammad_production}"
-: "${POSTGRESQL_DB_CREATE:=true}"
-: "${RAILS_TRUSTED_PROXIES:=['127.0.0.1', '::1']}"
-: "${RSYNC_ADDITIONAL_PARAMS:=--no-perms --no-owner}"
-: "${ZAMMAD_RAILSSERVER_HOST:=zammad-railsserver}"
-: "${ZAMMAD_RAILSSERVER_PORT:=3000}"
-: "${ZAMMAD_WEBSOCKET_HOST:=zammad-websocket}"
-: "${ZAMMAD_WEBSOCKET_PORT:=6042}"
-: "${ZAMMAD_WEB_CONCURRENCY:=0}"
-
-function check_zammad_ready {
-  sleep 15
-  until [ -f "${ZAMMAD_READY_FILE}" ]; do
-    echo "waiting for init container to finish install or update..."
-    sleep 10
-  done
-}
-
-# zammad init
-if [ "$1" = 'zammad-init' ]; then
-  # install / update zammad
-  test -f "${ZAMMAD_READY_FILE}" && rm "${ZAMMAD_READY_FILE}"
-  # shellcheck disable=SC2086
-  rsync -a ${RSYNC_ADDITIONAL_PARAMS} --delete --exclude 'public/assets/images/*' --exclude 'storage/fs/*' "${ZAMMAD_TMP_DIR}/" "${ZAMMAD_DIR}"
-  # shellcheck disable=SC2086
-  rsync -a ${RSYNC_ADDITIONAL_PARAMS} "${ZAMMAD_TMP_DIR}"/public/assets/images/ "${ZAMMAD_DIR}"/public/assets/images
-
-  until (echo > /dev/tcp/"${POSTGRESQL_HOST}"/"${POSTGRESQL_PORT}") &> /dev/null; do
-    echo "zammad railsserver waiting for postgresql server to be ready..."
-    sleep 5
-  done
-
-  cd "${ZAMMAD_DIR}"
-
-  # configure database
-  # https://stackoverflow.com/questions/407523/escape-a-string-for-a-sed-replace-pattern
-  ESCAPED_POSTGRESQL_PASS=$(echo "$POSTGRESQL_PASS" | sed -e 's/[\/&]/\\&/g')
-  sed -e "s#.*adapter:.*#  adapter: postgresql#g" -e "s#.*database:.*#  database: ${POSTGRESQL_DB}#g" -e "s#.*username:.*#  username: ${POSTGRESQL_USER}#g" -e "s#.*password:.*#  password: ${ESCAPED_POSTGRESQL_PASS}\\n  host: ${POSTGRESQL_HOST}\\n  port: ${POSTGRESQL_PORT}#g" < contrib/packager.io/database.yml.pkgr > config/database.yml
-
-  # configure trusted proxies
-  sed -i -e "s#config.action_dispatch.trusted_proxies =.*#config.action_dispatch.trusted_proxies = ${RAILS_TRUSTED_PROXIES}#" config/environments/production.rb
-
-  # check if database exists / update to new version
-  echo "initialising / updating database..."
-  if ! (bundle exec rails r 'puts User.any?' 2> /dev/null | grep -q true); then
-    if [ "${POSTGRESQL_DB_CREATE}" == "true" ]; then
-      bundle exec rake db:create
-    fi
-    bundle exec rake db:migrate
-    bundle exec rake db:seed
-
-    # create autowizard.json on first install
-    if base64 -d <<< ${AUTOWIZARD_JSON} &>> /dev/null; then
-      echo "Saving autowizard json payload..."
-      base64 -d <<< "${AUTOWIZARD_JSON}" > auto_wizard.json
-    fi
-  else
-    bundle exec rails r "Cache.clear"
-    bundle exec rake db:migrate
-  fi
-
-  # es config
-  echo "changing settings..."
-  if [ "${ELASTICSEARCH_ENABLED}" == "false" ]; then
-    bundle exec rails r "Setting.set('es_url', '')"
-  else
-    bundle exec rails r "Setting.set('es_url', '${ELASTICSEARCH_SCHEMA}://${ELASTICSEARCH_HOST}:${ELASTICSEARCH_PORT}')"
-
-    bundle exec rails r "Setting.set('es_index', '${ELASTICSEARCH_NAMESPACE}')"
-
-    if [ -n "${ELASTICSEARCH_USER}" ] && [ -n "${ELASTICSEARCH_PASS}" ]; then
-      bundle exec rails r "Setting.set('es_user', \"${ELASTICSEARCH_USER}\")"
-      bundle exec rails r "Setting.set('es_password', \"${ELASTICSEARCH_PASS}\")"
-    fi
-
-    until (echo > /dev/tcp/${ELASTICSEARCH_HOST}/${ELASTICSEARCH_PORT}) &> /dev/null; do
-      echo "zammad railsserver waiting for elasticsearch server to be ready..."
-      sleep 5
-    done
-
-    if [ "${ELASTICSEARCH_SSL_VERIFY}" == "false" ]; then
-      SSL_SKIP_VERIFY="-k"
-    else
-      SSL_SKIP_VERIFY=""
-    fi
-
-    if [ "${ELASTICSEARCH_REINDEX}" == "true" ]; then
-      if ! curl -s "${SSL_SKIP_VERIFY}" "${ELASTICSEARCH_SCHEMA}://${ELASTICSEARCH_HOST}:${ELASTICSEARCH_PORT}/_cat/indices" | grep -q zammad; then
-        echo "rebuilding es searchindex..."
-        bundle exec rake zammad:searchindex:rebuild
-      fi
-    fi
-  fi
-
-  # create install ready file
-  echo 'zammad-init' > "${ZAMMAD_READY_FILE}"
-fi
-
-
-# zammad nginx
-if [ "$1" = 'zammad-nginx' ]; then
-  check_zammad_ready
-
-  # configure nginx
-  sed -e "s#\(listen\)\(.*\)80#\1\2${NGINX_PORT}#g" \
-      -e "s#proxy_set_header X-Forwarded-Proto .*;#proxy_set_header X-Forwarded-Proto ${NGINX_SERVER_SCHEME};#g" \
-      -e "s#server .*:3000#server ${ZAMMAD_RAILSSERVER_HOST}:${ZAMMAD_RAILSSERVER_PORT}#g" \
-      -e "s#server .*:6042#server ${ZAMMAD_WEBSOCKET_HOST}:${ZAMMAD_WEBSOCKET_PORT}#g" \
-      -e "s#server_name .*#server_name ${NGINX_SERVER_NAME};#g" \
-      -e 's#/var/log/nginx/zammad.\(access\|error\).log#/dev/stdout#g' < contrib/nginx/zammad.conf > /etc/nginx/sites-enabled/default
-
-  echo "starting nginx..."
-
-  exec /usr/sbin/nginx -g 'daemon off;'
-fi
-
-
-# zammad-railsserver
-if [ "$1" = 'zammad-railsserver' ]; then
-  test -f /opt/zammad/tmp/pids/server.pid && rm /opt/zammad/tmp/pids/server.pid
-
-  check_zammad_ready
-
-  cd "${ZAMMAD_DIR}"
-
-  echo "starting railsserver... with WEB_CONCURRENCY=${ZAMMAD_WEB_CONCURRENCY}"
-
-  #shellcheck disable=SC2101
-  exec bundle exec puma -b tcp://[::]:"${ZAMMAD_RAILSSERVER_PORT}" -w "${ZAMMAD_WEB_CONCURRENCY}" -e "${RAILS_ENV}"
-fi
-
-
-# zammad-scheduler
-if [ "$1" = 'zammad-scheduler' ]; then
-  check_zammad_ready
-
-  cd "${ZAMMAD_DIR}"
-
-  echo "starting background services..."
-
-  exec bundle exec script/background-worker.rb start
-fi
-
-
-# zammad-websocket
-if [ "$1" = 'zammad-websocket' ]; then
-  check_zammad_ready
-
-  cd "${ZAMMAD_DIR}"
-
-  echo "starting websocket server..."
-
-  exec bundle exec script/websocket-server.rb -b 0.0.0.0 -p "${ZAMMAD_WEBSOCKET_PORT}" start
-fi
diff --git a/containers/zammad/setup.sh b/containers/zammad/setup.sh
deleted file mode 100755
index fb9b81b..0000000
--- a/containers/zammad/setup.sh
+++ /dev/null
@@ -1,59 +0,0 @@
-#!/usr/bin/env bash
-set -e
-
-# install dependencies
-if [ "$1" = 'builder' ]; then
-  PACKAGES="build-essential curl git libimlib2-dev libpq-dev shared-mime-info"
-elif [ "$1" = 'runner' ]; then
-  PACKAGES="curl libimlib2 libpq5 nginx rsync"
-fi
-
-apt-get update
-apt-get upgrade -y
-# shellcheck disable=SC2086
-apt-get install -y --no-install-recommends ${PACKAGES}
-
-if [ "$1" = 'builder' ]; then
-  # Install Node.js 16 repository from Nodesource
-  apt-get --no-install-recommends -y install gnupg
-  KEYRING=/usr/share/keyrings/nodesource.gpg
-  curl -fsSL https://deb.nodesource.com/gpgkey/nodesource.gpg.key | gpg --dearmor | tee "$KEYRING" >/dev/null
-  cat - > /etc/apt/sources.list.d/nodesource.list <<NODESOURCE_LIST
-deb [signed-by=/usr/share/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x buster main
-NODESOURCE_LIST
-
-  apt-get update
-  apt-get --no-install-recommends -y install nodejs
-  npm -g install yarn
-fi
-
-# Clean-up
-rm -rf /var/lib/apt/lists/*
-
-# install zammad
-groupadd -g 1000 "${ZAMMAD_USER}"
-useradd -M -d "${ZAMMAD_DIR}" -s /bin/bash -u 1000 -g 1000 "${ZAMMAD_USER}"
-
-if [ "$1" = 'builder' ]; then
-  cd "$(dirname "${ZAMMAD_TMP_DIR}")"
-  curl -s -J -L -O "${TAR_GZ_URL}"
-  tar -xzf zammad-"${GIT_BRANCH}".tar.gz
-  rm zammad-"${GIT_BRANCH}".tar.gz
-  cd "${ZAMMAD_TMP_DIR}"
-  bundle config set without 'test development mysql'
-  bundle install
-  sed -e 's#.*adapter: postgresql#  adapter: nulldb#g' -e 's#.*username:.*#  username: postgres#g' -e 's#.*password:.*#  password: \n  host: zammad-postgresql\n#g' < contrib/packager.io/database.yml.pkgr > config/database.yml
-  sed -i "/require 'rails\/all'/a require\ 'nulldb'" config/application.rb
-  touch db/schema.rb
-  bundle exec rake assets:precompile
-  rm -r tmp/cache
-  script/build/cleanup.sh
-  chown -R "${ZAMMAD_USER}":"${ZAMMAD_USER}" "${ZAMMAD_TMP_DIR}"
-fi
-
-# set nginx file permissions and settings
-if [ "$1" = 'runner' ]; then
-  sed -i -e "s#user www-data;##g" -e 's#/var/log/nginx/\(access\|error\).log#/dev/stdout#g' -e 's#pid /run/nginx.pid;#pid /tmp/nginx.pid;#g' /etc/nginx/nginx.conf
-  mkdir -p "${ZAMMAD_DIR}" /var/log/nginx
-  chown -R "${ZAMMAD_USER}":"${ZAMMAD_USER}" /etc/nginx "${ZAMMAD_DIR}" /var/lib/nginx /var/log/nginx
-fi