diff --git a/28/apache/Dockerfile b/28/apache/Dockerfile
index 2ea543a7..c4089c5f 100644
--- a/28/apache/Dockerfile
+++ b/28/apache/Dockerfile
@@ -140,7 +140,7 @@ RUN { \
     } > /etc/apache2/conf-available/apache-limits.conf; \
     a2enconf apache-limits
 
-ENV NEXTCLOUD_VERSION 28.0.7
+ENV NEXTCLOUD_VERSION 28.0.8
 
 RUN set -ex; \
     fetchDeps=" \
@@ -150,8 +150,8 @@ RUN set -ex; \
     apt-get update; \
     apt-get install -y --no-install-recommends $fetchDeps; \
     \
-    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-28.0.7.tar.bz2"; \
-    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-28.0.7.tar.bz2.asc"; \
+    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-28.0.8.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-28.0.8.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
     gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
diff --git a/28/fpm-alpine/Dockerfile b/28/fpm-alpine/Dockerfile
index ae4c183c..1c0df0a4 100644
--- a/28/fpm-alpine/Dockerfile
+++ b/28/fpm-alpine/Dockerfile
@@ -120,7 +120,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 28.0.7
+ENV NEXTCLOUD_VERSION 28.0.8
 
 RUN set -ex; \
     apk add --no-cache --virtual .fetch-deps \
@@ -128,8 +128,8 @@ RUN set -ex; \
         gnupg \
     ; \
     \
-    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-28.0.7.tar.bz2"; \
-    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-28.0.7.tar.bz2.asc"; \
+    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-28.0.8.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-28.0.8.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
     gpg --batch --keyserver keyserver.ubuntu.com  --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
diff --git a/28/fpm/Dockerfile b/28/fpm/Dockerfile
index 83c009ff..593beb1b 100644
--- a/28/fpm/Dockerfile
+++ b/28/fpm/Dockerfile
@@ -125,7 +125,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 28.0.7
+ENV NEXTCLOUD_VERSION 28.0.8
 
 RUN set -ex; \
     fetchDeps=" \
@@ -135,8 +135,8 @@ RUN set -ex; \
     apt-get update; \
     apt-get install -y --no-install-recommends $fetchDeps; \
     \
-    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-28.0.7.tar.bz2"; \
-    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-28.0.7.tar.bz2.asc"; \
+    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-28.0.8.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-28.0.8.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
     gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
diff --git a/29/apache/Dockerfile b/29/apache/Dockerfile
index 40b7c93f..1255bafe 100644
--- a/29/apache/Dockerfile
+++ b/29/apache/Dockerfile
@@ -140,7 +140,7 @@ RUN { \
     } > /etc/apache2/conf-available/apache-limits.conf; \
     a2enconf apache-limits
 
-ENV NEXTCLOUD_VERSION 29.0.3
+ENV NEXTCLOUD_VERSION 29.0.4
 
 RUN set -ex; \
     fetchDeps=" \
@@ -150,8 +150,8 @@ RUN set -ex; \
     apt-get update; \
     apt-get install -y --no-install-recommends $fetchDeps; \
     \
-    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-29.0.3.tar.bz2"; \
-    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-29.0.3.tar.bz2.asc"; \
+    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-29.0.4.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-29.0.4.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
     gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
diff --git a/29/fpm-alpine/Dockerfile b/29/fpm-alpine/Dockerfile
index 995c908a..d36b0c9e 100644
--- a/29/fpm-alpine/Dockerfile
+++ b/29/fpm-alpine/Dockerfile
@@ -120,7 +120,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 29.0.3
+ENV NEXTCLOUD_VERSION 29.0.4
 
 RUN set -ex; \
     apk add --no-cache --virtual .fetch-deps \
@@ -128,8 +128,8 @@ RUN set -ex; \
         gnupg \
     ; \
     \
-    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-29.0.3.tar.bz2"; \
-    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-29.0.3.tar.bz2.asc"; \
+    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-29.0.4.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-29.0.4.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
     gpg --batch --keyserver keyserver.ubuntu.com  --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
diff --git a/29/fpm/Dockerfile b/29/fpm/Dockerfile
index 5bba909f..8dc9a1f0 100644
--- a/29/fpm/Dockerfile
+++ b/29/fpm/Dockerfile
@@ -125,7 +125,7 @@ RUN { \
 VOLUME /var/www/html
 
 
-ENV NEXTCLOUD_VERSION 29.0.3
+ENV NEXTCLOUD_VERSION 29.0.4
 
 RUN set -ex; \
     fetchDeps=" \
@@ -135,8 +135,8 @@ RUN set -ex; \
     apt-get update; \
     apt-get install -y --no-install-recommends $fetchDeps; \
     \
-    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-29.0.3.tar.bz2"; \
-    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-29.0.3.tar.bz2.asc"; \
+    curl -fsSL -o nextcloud.tar.bz2 "https://download.nextcloud.com/server/releases/nextcloud-29.0.4.tar.bz2"; \
+    curl -fsSL -o nextcloud.tar.bz2.asc "https://download.nextcloud.com/server/releases/nextcloud-29.0.4.tar.bz2.asc"; \
     export GNUPGHOME="$(mktemp -d)"; \
 # gpg key from https://nextcloud.com/nextcloud.asc
     gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 28806A878AE423A28372792ED75899B9A724937A; \
diff --git a/README.md b/README.md
index b9f7a66d..c012608d 100644
--- a/README.md
+++ b/README.md
@@ -132,7 +132,7 @@ __PostgreSQL__:
 - `POSTGRES_PASSWORD` Password for the database user using postgres.
 - `POSTGRES_HOST` Hostname of the database server using postgres.
 
-As an alternative to passing sensitive information via environment variables, `_FILE` may be appended to the previously listed environment variables, causing the initialization script to load the values for those variables from files present in the container. See [Docker secrets](#docker-secrets) section below.
+As an alternative to passing sensitive information via environment variables, `_FILE` may be appended to the previously listed environment variables (except for `POSTGRES_HOST` and `MYSQL_HOST`, which cannot be loaded from files), , causing the initialization script to load the values for those variables from files present in the container. See [Docker secrets](#docker-secrets) section below.
 
 If you set any group of values (i.e. all of `MYSQL_DATABASE`, `MYSQL_USER`, `MYSQL_PASSWORD`, `MYSQL_HOST`), they will not be asked in the install page on first run. With a complete configuration by using all variables for your database type, you can additionally configure your Nextcloud instance by setting admin user and password (only works if you set both):
 
@@ -448,7 +448,7 @@ secrets:
 
 Currently, this is only supported for `NEXTCLOUD_ADMIN_PASSWORD`, `NEXTCLOUD_ADMIN_USER`, `MYSQL_DATABASE`, `MYSQL_PASSWORD`, `MYSQL_USER`, `POSTGRES_DB`, `POSTGRES_PASSWORD`, `POSTGRES_USER`, `REDIS_HOST_PASSWORD`, `SMTP_PASSWORD`, `OBJECTSTORE_S3_KEY`, and `OBJECTSTORE_S3_SECRET`.
 
-If you set any group of values (i.e. all of `MYSQL_DATABASE_FILE`, `MYSQL_USER_FILE`, `MYSQL_PASSWORD_FILE`, `MYSQL_HOST`), the script will not use the corresponding group of environment variables (`MYSQL_DATABASE`, `MYSQL_USER`, `MYSQL_PASSWORD`, `MYSQL_HOST`).
+If you set any group of values (i.e. all of `MYSQL_DATABASE_FILE`, `MYSQL_USER_FILE`, `MYSQL_PASSWORD_FILE`), the script will not use the corresponding group of environment variables (`MYSQL_DATABASE`, `MYSQL_USER`, `MYSQL_PASSWORD`).
 
 # Make your Nextcloud available from the internet
 Until here, your Nextcloud is just available from your docker host. If you want your Nextcloud available from the internet adding SSL encryption is mandatory.
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 4e06fcc4..353c48a1 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -207,12 +207,20 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
                         # 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
+                    elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ]; then
+                        if [ -z "${MYSQL_HOST}" ] ; then
+                            echo "MySQL credentials set but no MySQL host set. Please make sure \$MYSQL_HOST is set."
+                            exit 1
+                        fi
                         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 "${POSTGRES_HOST+x}" ]; then
+                    elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ]; then
+                        if [ -z "${POSTGRES_HOST}" ] ; then
+                            echo "PostgreSQL credentials set but no PostgreSQL host set. Please make sure \$POSTGRES_HOST is set."
+                            exit 1
+                        fi
                         echo "Installing with PostgreSQL database"
                         # shellcheck disable=SC2016
                         install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
diff --git a/generate-stackbrew-library.sh b/generate-stackbrew-library.sh
index 12bc4a40..8eaaea3b 100755
--- a/generate-stackbrew-library.sh
+++ b/generate-stackbrew-library.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-stable_channel='28.0.7'
+stable_channel='29.0.4'
 
 self="$(basename "$BASH_SOURCE")"
 cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
diff --git a/latest.txt b/latest.txt
index c5f3eb7e..fad4b91c 100644
--- a/latest.txt
+++ b/latest.txt
@@ -1 +1 @@
-29.0.3
+29.0.4
diff --git a/versions.json b/versions.json
index 47c5f9b4..7174afbd 100644
--- a/versions.json
+++ b/versions.json
@@ -1,9 +1,9 @@
 {
   "29": {
     "branch": "29",
-    "version": "29.0.3",
-    "url": "https://download.nextcloud.com/server/releases/nextcloud-29.0.3.tar.bz2",
-    "ascUrl": "https://download.nextcloud.com/server/releases/nextcloud-29.0.3.tar.bz2.asc",
+    "version": "29.0.4",
+    "url": "https://download.nextcloud.com/server/releases/nextcloud-29.0.4.tar.bz2",
+    "ascUrl": "https://download.nextcloud.com/server/releases/nextcloud-29.0.4.tar.bz2.asc",
     "variants": {
       "apache": {
         "variant": "apache",
@@ -27,9 +27,9 @@
   },
   "28": {
     "branch": "28",
-    "version": "28.0.7",
-    "url": "https://download.nextcloud.com/server/releases/nextcloud-28.0.7.tar.bz2",
-    "ascUrl": "https://download.nextcloud.com/server/releases/nextcloud-28.0.7.tar.bz2.asc",
+    "version": "28.0.8",
+    "url": "https://download.nextcloud.com/server/releases/nextcloud-28.0.8.tar.bz2",
+    "ascUrl": "https://download.nextcloud.com/server/releases/nextcloud-28.0.8.tar.bz2.asc",
     "variants": {
       "apache": {
         "variant": "apache",