diff --git a/README.md b/README.md
index ffd0c3b..5798720 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ If you don't have YunoHost, please see [here](https://yunohost.org/#/install) to
 
 GitLab is a web-based Git-repository manager providing wiki, issue-tracking and CI/CD pipeline features, using an open-source license, developed by GitLab Inc.
 
-**Shipped version:** 12.3.4
+**Shipped version:** 12.4.0
 
 ## Screenshots
 
diff --git a/conf/gitlab.rb b/conf/gitlab.rb
index 2d86a11..b81c81e 100644
--- a/conf/gitlab.rb
+++ b/conf/gitlab.rb
@@ -22,6 +22,16 @@
 ##! settings that can be configured by this file, which may be found at:
 ##! https://gitlab.com/gitlab-org/omnibus-gitlab/raw/master/files/gitlab-config-template/gitlab.rb.template
 
+##! You can run `gitlab-ctl diff-config` to compare the contents of the current gitlab.rb with
+##! the gitlab.rb.template from the currently running version.
+
+##! You can run `gitlab-ctl show-config` to display the configuration that will be generated by
+##! running `gitlab-ctl reconfigure`
+
+##! In general, the values specified here should reflect what the default value of the attribute will be.
+##! There are instances where this behavior is not possible or desired. For example, when providing passwords,
+##! or connecting to third party services.
+##! In those instances, we endeavour to provide an example configuration.
 
 ## GitLab URL
 ##! URL on which GitLab will be reachable.
@@ -48,8 +58,6 @@ external_url '__GENERATED_EXTERNAL_URL__'
 ##! beginning; Remove them to enable the setting.
 
 ##! **Configuration settings below are optional.**
-##! **The values currently assigned are only examples and ARE NOT the default
-##!   values.**
 
 
 ################################################################################
@@ -305,6 +313,50 @@ external_url '__GENERATED_EXTERNAL_URL__'
 gitlab_rails['ldap_enabled'] = true
 
 ###! **remember to close this block with 'EOS' below**
+# gitlab_rails['ldap_servers'] = YAML.load <<-'EOS'
+#   main: # 'main' is the GitLab 'provider ID' of this LDAP server
+#     label: 'LDAP'
+#     host: '_your_ldap_server'
+#     port: 389
+#     uid: 'sAMAccountName'
+#     bind_dn: '_the_full_dn_of_the_user_you_will_bind_with'
+#     password: '_the_password_of_the_bind_user'
+#     encryption: 'plain' # "start_tls" or "simple_tls" or "plain"
+#     verify_certificates: true
+#     smartcard_auth: false
+#     active_directory: true
+#     allow_username_or_email_login: false
+#     lowercase_usernames: false
+#     block_auto_created_users: false
+#     base: ''
+#     user_filter: ''
+#     ## EE only
+#     group_base: ''
+#     admin_group: ''
+#     sync_ssh_keys: false
+#
+#   secondary: # 'secondary' is the GitLab 'provider ID' of second LDAP server
+#     label: 'LDAP'
+#     host: '_your_ldap_server'
+#     port: 389
+#     uid: 'sAMAccountName'
+#     bind_dn: '_the_full_dn_of_the_user_you_will_bind_with'
+#     password: '_the_password_of_the_bind_user'
+#     encryption: 'plain' # "start_tls" or "simple_tls" or "plain"
+#     verify_certificates: true
+#     smartcard_auth: false
+#     active_directory: true
+#     allow_username_or_email_login: false
+#     lowercase_usernames: false
+#     block_auto_created_users: false
+#     base: ''
+#     user_filter: ''
+#     ## EE only
+#     group_base: ''
+#     admin_group: ''
+#     sync_ssh_keys: false
+# EOS
+
 gitlab_rails['ldap_servers'] = YAML.load <<-'EOS' # remember to close this block with 'EOS' below
   main: # 'main' is the GitLab 'provider ID' of this LDAP server
     label: 'LDAP'
@@ -447,17 +499,6 @@ gitlab_rails['gitlab_shell_ssh_port'] = __SSH_PORT__
 #   'bantime' => 3600
 # }
 
-# gitlab_rails['rack_attack_protected_paths'] = [
-#   '/users/password',
-#   '/users/sign_in',
-#   '/api/#{API::API.version}/session.json',
-#   '/api/#{API::API.version}/session',
-#   '/users',
-#   '/users/confirmation',
-#   '/unsubscribes/',
-#   '/import/github/personal_access_token'
-# ]
-
 ###! **We do not recommend changing these directories.**
 # gitlab_rails['dir'] = "/var/opt/gitlab/gitlab-rails"
 # gitlab_rails['log_directory'] = "/var/log/gitlab/gitlab-rails"
@@ -745,6 +786,11 @@ unicorn['port'] = __UNICORN_PORT__
 # unicorn['worker_memory_limit_min'] = "400 * 1 << 20"
 # unicorn['worker_memory_limit_max'] = "650 * 1 << 20"
 
+# unicorn['exporter_enabled'] = false
+# unicorn['exporter_address'] = "127.0.0.1"
+# unicorn['exporter_port'] = 8083
+# unicorn['exporter_blackout_seconds'] = 10
+
 ################################################################################
 ## GitLab Puma
 ##! Tweak puma settings. You should only use Unicorn or Puma, not both.
@@ -770,7 +816,12 @@ unicorn['port'] = __UNICORN_PORT__
 
 ### **Only change these settings if you understand well what they mean**
 ###! Docs: https://github.com/schneems/puma_worker_killer
-# puma['per_worker_max_memory_mb'] = 650
+# puma['per_worker_max_memory_mb'] = 850
+
+# puma['exporter_enabled'] = false
+# puma['exporter_address'] = "127.0.0.1"
+# puma['exporter_port'] = 8083
+# puma['exporter_blackout_seconds'] = 10
 
 ################################################################################
 ## GitLab Sidekiq
@@ -1199,6 +1250,7 @@ nginx['listen_https'] = false
 ##! You can disable built in logrotate feature.
 ################################################################################
 # logrotate['enable'] = true
+# logrotate['log_directory'] = "/var/log/gitlab/logrotate"
 
 ################################################################################
 ## Users and groups accounts
@@ -1307,16 +1359,6 @@ nginx['listen_https'] = false
 ##! Specifies the maximum SSL/TLS version ("ssl3", "tls1.0", "tls1.1" or "tls1.2")
 # gitlab_pages['tls_max_version'] = "tls1.2"
 
-##! Configure the pages admin API
-# gitlab_pages['admin_secret_token'] = 'custom secret'
-# gitlab_pages['admin_https_listener'] = '0.0.0.0:5678'
-# gitlab_pages['admin_https_cert'] = '/etc/gitlab/pages-admin.crt'
-# gitlab_pages['admin_https_key'] = '/etc/gitlab/pages-admin.key'
-
-##! Client side configuration for gitlab-pages admin API, in case pages runs on a different host
-# gitlab_rails['pages_admin_address'] = 'pages.gitlab.example.com:5678'
-# gitlab_rails['pages_admin_certificate'] = '/etc/gitlab/pages-admin.crt'
-
 ##! Pages access control
 # gitlab_pages['access_control'] = false
 # gitlab_pages['gitlab_id'] = nil # Automatically generated if not present
@@ -1530,6 +1572,7 @@ nginx['listen_https'] = false
 
 ##! Advanced settings. Should be changed only if absolutely needed.
 # alertmanager['listen_address'] = 'localhost:9093'
+# alertmanager['global'] = {}
 
 ################################################################################
 ## Prometheus Node Exporter
@@ -1713,6 +1756,7 @@ grafana['enable'] = false
 # gitaly['ruby_max_rss'] = 300000000 # RSS threshold in bytes for triggering a gitaly-ruby restart
 # gitaly['ruby_graceful_restart_timeout'] = '10m' # Grace time for a gitaly-ruby process to finish ongoing requests
 # gitaly['ruby_restart_delay'] = '5m' # Period of sustained high RSS that needs to be observed before restarting gitaly-ruby
+# gitaly['ruby_rugged_git_config_search_path'] = "/opt/gitlab/embedded/etc" # Location of system-wide gitconfig file
 # gitaly['ruby_num_workers'] = 3 # Number of gitaly-ruby worker processes. Minimum 2, default 2.
 # gitaly['storage'] = [
 #   {
@@ -1734,6 +1778,32 @@ grafana['enable'] = false
 #   }
 # ]
 
+################################################################################
+## Praefect
+##! Docs: https://gitlab.com/gitlab-org/gitaly/blob/master/doc/design_ha.md
+################################################################################
+
+# praefect['enable'] = false
+# praefect['virtual_storage_name'] = "praefect"
+# praefect['auth_token'] = ""
+# praefect['auth_transitioning'] = false 
+# praefect['listen_addr'] = "localhost:2305"
+# praefect['prometheus_listen_addr'] = "localhost:9652"
+# praefect['logging_level'] = "warn"
+# praefect['logging_format'] = "json"
+# praefect['storage_nodes'] = [
+#   {
+#     'storage' => 'praefect',
+#     'address' => 'tcp://12:23:56:78',
+#     'token' => 'abc123'
+#   },
+#   {
+#     'storoge' => 'praefect-2',
+#     'address' => 'tcp://praefect2.internal',
+#     'token' => 'xyz456'
+#   }
+# ]
+
 ################################################################################
 # Storage check
 ################################################################################
@@ -1760,6 +1830,11 @@ grafana['enable'] = false
 ##! non-docker containers. Recommended not to change.
 # package['detect_init'] = true
 
+##! Specify maximum number of tasks that can be created by the systemd unit
+##! Will be populated as TasksMax value to the unit file if user is on a systemd
+##! version that supports it (>= 227). Will be a no-op if user is not on systemd.
+# package['systemd_tasks_max'] = 4915
+
 ################################################################################
 ################################################################################
 ##                  Configuration Settings for GitLab EE only                 ##
diff --git a/manifest.json b/manifest.json
index 51fb76c..9e8d73d 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,7 +2,7 @@
     "name": "Gitlab",
     "id": "gitlab",
     "packaging_format": 1,
-    "version": "12.3.4~ynh1",
+    "version": "12.4.0~ynh1",
     "description": {
         "en": "GitLab is a Git-repository manager.",
         "fr": "GitLab est un gestionnaire de dépôts Git."
diff --git a/scripts/upgrade.d/upgrade.last.sh b/scripts/upgrade.d/upgrade.last.sh
index c922646..2f65fb0 100644
--- a/scripts/upgrade.d/upgrade.last.sh
+++ b/scripts/upgrade.d/upgrade.last.sh
@@ -1,8 +1,8 @@
-gitlab_version="12.3.4"
+gitlab_version="12.4.0"
 
-gitlab_x86_64_source_sha256="6b913d17bca52e955429081e3331c3fc9003f4087c37b06019f124d41bce3c26"
+gitlab_x86_64_source_sha256="a8e84fe14b8ea1e63b6746478475f1253528d25414f5dd4538cb0f229ed42d82"
 
-gitlab_arm_source_sha256="c09fb0ba3ec71574d8fa0efc6b1c3afbc075cebfd8e5bd903a21be9b6e3e2a1b"
+gitlab_arm_source_sha256="ab5ae257dc3b26f463a5afaf1344f4218fb545080e8e9a0f071d8cd59da2f259"
 
 gitlab_filename="gitlab-ce-${gitlab_version}.deb"