diff --git a/.devilbox/www/config.php b/.devilbox/www/config.php
index 0ad2ab20..3e9bbb2d 100644
--- a/.devilbox/www/config.php
+++ b/.devilbox/www/config.php
@@ -13,8 +13,8 @@ error_reporting(-1);
 putenv('RES_OPTIONS=retrans:1 retry:1 timeout:1 attempts:1');
 
 
-$DEVILBOX_VERSION = 'v1.3.0';
-$DEVILBOX_DATE = '2019-12-29';
+$DEVILBOX_VERSION = 'v1.4.0';
+$DEVILBOX_DATE = '2020-01-02';
 $DEVILBOX_API_PAGE = 'devilbox-api/status.json';
 
 //
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9fce6dac..b6181e5c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,17 @@ major versions.
 ## Unreleased
 
 
+## Release v1.4.0 (2020-01-02)
+
+#### Fixed
+- [#618](https://github.com/cytopia/devilbox/issues/618) Update Compose version to 2.3
+- [#614](https://github.com/cytopia/devilbox/issues/614) Update to latest mhsendmail binary with `-o` flag
+- [#265](https://github.com/cytopia/devilbox/issues/265) Fix http to https redirect for projects
+
+#### Changed
+- [#642](https://github.com/cytopia/devilbox/issues/642) Be able to disable email catch-all and still run postfix
+
+
 ## Release v1.3.0 (2019-12-29)
 
 #### Fixed
diff --git a/README.md b/README.md
index 382bf4c9..680ac1b2 100644
--- a/README.md
+++ b/README.md
@@ -51,8 +51,8 @@ Furthermore, the Devilbox provides an **identical** and **reproducible developme
 ![Plus](https://raw.githubusercontent.com/cytopia/icons/master/64x64/plus.png)
 ![Docker](https://raw.githubusercontent.com/cytopia/icons/master/64x64/docker.png)
 
-* [Docker Engine 1.12.0+](https://docs.docker.com/compose/compose-file/compose-versioning/#version-21)
-* [Docker Compose 1.9.0+](https://docs.docker.com/compose/compose-file/compose-versioning/#version-21)
+* [Docker Engine 17.06.0+](https://docs.docker.com/compose/compose-file/compose-versioning/#version-23)
+* [Docker Compose 1.16.0+](https://docs.docker.com/compose/compose-file/compose-versioning/#version-23)
 
 ## Architecture
 
diff --git a/compose/docker-compose.override.yml-all b/compose/docker-compose.override.yml-all
index 7127120d..68e418b1 100644
--- a/compose/docker-compose.override.yml-all
+++ b/compose/docker-compose.override.yml-all
@@ -1,5 +1,6 @@
 # vim: set ft=yaml:
-version: '2.1'
+---
+version: '2.3'
 
 ###
 ### Services
diff --git a/compose/docker-compose.override.yml-blackfire b/compose/docker-compose.override.yml-blackfire
index 511154d3..e0c63e20 100644
--- a/compose/docker-compose.override.yml-blackfire
+++ b/compose/docker-compose.override.yml-blackfire
@@ -1,5 +1,6 @@
 # vim: set ft=yaml:
-version: '2.1'
+---
+version: '2.3'
 
 services:
 
diff --git a/compose/docker-compose.override.yml-elk b/compose/docker-compose.override.yml-elk
index 8d88a14c..f669f096 100644
--- a/compose/docker-compose.override.yml-elk
+++ b/compose/docker-compose.override.yml-elk
@@ -1,7 +1,7 @@
 # vim: set ft=yaml:
 # https://www.docker.elastic.co
-
-version: '2.1'
+---
+version: '2.3'
 
 services:
 
diff --git a/compose/docker-compose.override.yml-mailhog b/compose/docker-compose.override.yml-mailhog
index c9838506..6f20a082 100644
--- a/compose/docker-compose.override.yml-mailhog
+++ b/compose/docker-compose.override.yml-mailhog
@@ -1,5 +1,6 @@
 # vim: set ft=yaml:
-version: '2.1'
+---
+version: '2.3'
 
 services:
 
diff --git a/compose/docker-compose.override.yml-ngrok b/compose/docker-compose.override.yml-ngrok
index 8caa2691..3c3bace4 100644
--- a/compose/docker-compose.override.yml-ngrok
+++ b/compose/docker-compose.override.yml-ngrok
@@ -1,5 +1,6 @@
 # vim: set ft=yaml:
-version: '2.1'
+---
+version: '2.3'
 
 services:
 
diff --git a/compose/docker-compose.override.yml-rabbitmq b/compose/docker-compose.override.yml-rabbitmq
index 229089a4..4532e63e 100644
--- a/compose/docker-compose.override.yml-rabbitmq
+++ b/compose/docker-compose.override.yml-rabbitmq
@@ -1,5 +1,6 @@
 # vim: set ft=yaml:
-version: '2.1'
+---
+version: '2.3'
 
 services:
 
diff --git a/compose/docker-compose.override.yml-solr b/compose/docker-compose.override.yml-solr
index 82eb613b..87493351 100644
--- a/compose/docker-compose.override.yml-solr
+++ b/compose/docker-compose.override.yml-solr
@@ -1,5 +1,6 @@
 # vim: set ft=yaml:
-version: '2.1'
+---
+version: '2.3'
 
 services:
 
diff --git a/compose/docker-compose.override.yml-varnish b/compose/docker-compose.override.yml-varnish
index f2e673dd..7279237c 100644
--- a/compose/docker-compose.override.yml-varnish
+++ b/compose/docker-compose.override.yml-varnish
@@ -1,5 +1,6 @@
 # vim: set ft=yaml:
-version: '2.1'
+---
+version: '2.3'
 
 services:
 
diff --git a/docker-compose.override.yml-example b/docker-compose.override.yml-example
index b93885a9..185e4b43 100644
--- a/docker-compose.override.yml-example
+++ b/docker-compose.override.yml-example
@@ -1,5 +1,6 @@
 # IMPORTANT: The version must match the version of docker-compose.yml
-version: '2.1'
+---
+version: '2.3'
 
 # The following override shows an example for the cockroachdb
 services:
diff --git a/docker-compose.yml b/docker-compose.yml
index 9ec672a6..52ad83ca 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -22,7 +22,7 @@
 ##   $ cp env-example .env
 ##
 
-version: '2.1'
+version: '2.3'
 
 
 ################################################################################
@@ -95,7 +95,7 @@ services:
   # PHP
   # ------------------------------------------------------------
   php:
-    image: devilbox/php-fpm:${PHP_SERVER}-work-0.97
+    image: devilbox/php-fpm:${PHP_SERVER}-work-0.98
     hostname: php
 
     ##
@@ -135,7 +135,7 @@ services:
       ##
       ## Mail-catching
       ##
-      - ENABLE_MAIL=1
+      - ENABLE_MAIL=2
 
       ##
       ## Enable 127.0.0.1 Port-forwarding
@@ -210,7 +210,7 @@ services:
   # Web Server
   # ------------------------------------------------------------
   httpd:
-    image: devilbox/${HTTPD_SERVER}:0.31
+    image: devilbox/${HTTPD_SERVER}:0.32
     hostname: httpd
 
     environment:
diff --git a/docs/getting-started/prerequisites.rst b/docs/getting-started/prerequisites.rst
index fbb0372f..67ef6e99 100644
--- a/docs/getting-started/prerequisites.rst
+++ b/docs/getting-started/prerequisites.rst
@@ -53,8 +53,8 @@ The only requirements for the Devilbox is to have ``Docker`` and ``Docker Compos
 everything else is bundled and provided withing the Docker container.
 The minimum required versions are listed below:
 
-* ``Docker``: 1.12.0+
-* ``Docker Compose``: 1.9.0+
+* ``Docker``: 17.06.0+
+* ``Docker Compose``: 1.16.0+
 
 
 Additionally you will require ``git`` in order to clone the devilbox project.