diff --git a/ALL_README.md b/ALL_README.md
index 3d6c579..a01b345 100644
--- a/ALL_README.md
+++ b/ALL_README.md
@@ -1,6 +1,7 @@
 # All available README files by language
 
 - [Read the README in English](README.md)
+- [Irakurri README euskaraz](README_eu.md)
 - [Lire le README en français](README_fr.md)
 - [Le o README en galego](README_gl.md)
-- [Leggi il “README” in italiano](README_it.md)
+- [阅读中文（简体）的 README](README_zh_Hans.md)
diff --git a/README.md b/README.md
index 7236e59..8ff89b3 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ It shall NOT be edited by hand.
 
 [![Install HumHub with YunoHost](https://install-app.yunohost.org/install-with-yunohost.svg)](https://install-app.yunohost.org/?app=humhub)
 
-*[Read this README is other languages.](./ALL_README.md)*
+*[Read this README in other languages.](./ALL_README.md)*
 
 > *This package allows you to install HumHub quickly and simply on a YunoHost server.*  
 > *If you don't have YunoHost, please consult [the guide](https://yunohost.org/install) to learn how to install it.*
@@ -19,7 +19,7 @@ It shall NOT be edited by hand.
 HumHub is an open source social network platform with a wide variety of use cases as social intranet, community or collaboration platform. HumHub consists of a core application, which can be extended through additional modules and adjusted to your needs by many configuration options. 
 
 
-**Shipped version:** 1.15.3~ynh1
+**Shipped version:** 1.15.4~ynh1
 
 **Demo:** <https://www.humhub.com/en>
 
diff --git a/README_eu.md b/README_eu.md
new file mode 100644
index 0000000..50680c4
--- /dev/null
+++ b/README_eu.md
@@ -0,0 +1,50 @@
+<!--
+Ohart ongi: README hau automatikoki sortu da <https://github.com/YunoHost/apps/tree/master/tools/readme_generator>ri esker
+EZ editatu eskuz.
+-->
+
+# HumHub YunoHost-erako
+
+[![Integrazio maila](https://dash.yunohost.org/integration/humhub.svg)](https://dash.yunohost.org/appci/app/humhub) ![Funtzionamendu egoera](https://ci-apps.yunohost.org/ci/badges/humhub.status.svg) ![Mantentze egoera](https://ci-apps.yunohost.org/ci/badges/humhub.maintain.svg)
+
+[![Instalatu HumHub YunoHost-ekin](https://install-app.yunohost.org/install-with-yunohost.svg)](https://install-app.yunohost.org/?app=humhub)
+
+*[Irakurri README hau beste hizkuntzatan.](./ALL_README.md)*
+
+> *Pakete honek HumHub YunoHost zerbitzari batean azkar eta zailtasunik gabe instalatzea ahalbidetzen dizu.*  
+> *YunoHost ez baduzu, kontsultatu [gida](https://yunohost.org/install) nola instalatu ikasteko.*
+
+## Aurreikuspena
+
+HumHub is an open source social network platform with a wide variety of use cases as social intranet, community or collaboration platform. HumHub consists of a core application, which can be extended through additional modules and adjusted to your needs by many configuration options. 
+
+
+**Paketatutako bertsioa:** 1.15.4~ynh1
+
+**Demoa:** <https://www.humhub.com/en>
+
+## Pantaila-argazkiak
+
+![HumHub(r)en pantaila-argazkia](./doc/screenshots/app_small.png)
+
+## Dokumentazioa eta baliabideak
+
+- Aplikazioaren webgune ofiziala: <https://www.humhub.org>
+- Administratzaileen dokumentazio ofiziala: <https://docs.humhub.org>
+- Jatorrizko aplikazioaren kode-gordailua: <https://github.com/humhub/humhub>
+- YunoHost Denda: <https://apps.yunohost.org/app/humhub>
+- Eman errore baten berri: <https://github.com/YunoHost-Apps/humhub_ynh/issues>
+
+## Garatzaileentzako informazioa
+
+Bidali `pull request`a [`testing` abarrera](https://github.com/YunoHost-Apps/humhub_ynh/tree/testing).
+
+`testing` abarra probatzeko, ondorengoa egin:
+
+```bash
+sudo yunohost app install https://github.com/YunoHost-Apps/humhub_ynh/tree/testing --debug
+edo
+sudo yunohost app upgrade humhub -u https://github.com/YunoHost-Apps/humhub_ynh/tree/testing --debug
+```
+
+**Informazio gehiago aplikazioaren paketatzeari buruz:** <https://yunohost.org/packaging_apps>
diff --git a/README_fr.md b/README_fr.md
index 3d3ad71..bccb284 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -19,7 +19,7 @@ Il NE doit PAS être modifié à la main.
 HumHub est une plate-forme de réseau social open source avec une grande variété de cas d'utilisation en tant qu'intranet social, plate-forme de communauté ou de collaboration. HumHub se compose d'une application principale, qui peut être étendue grâce à des modules supplémentaires et ajustée à vos besoins par de nombreuses options de configuration.
 
 
-**Version incluse :** 1.15.3~ynh1
+**Version incluse :** 1.15.4~ynh1
 
 **Démo :** <https://www.humhub.com/en>
 
diff --git a/README_gl.md b/README_gl.md
index 961e151..28e6428 100644
--- a/README_gl.md
+++ b/README_gl.md
@@ -19,7 +19,7 @@ NON debe editarse manualmente.
 HumHub is an open source social network platform with a wide variety of use cases as social intranet, community or collaboration platform. HumHub consists of a core application, which can be extended through additional modules and adjusted to your needs by many configuration options. 
 
 
-**Versión proporcionada:** 1.15.3~ynh1
+**Versión proporcionada:** 1.15.4~ynh1
 
 **Demo:** <https://www.humhub.com/en>
 
diff --git a/README_zh_Hans.md b/README_zh_Hans.md
new file mode 100644
index 0000000..c2d6dd9
--- /dev/null
+++ b/README_zh_Hans.md
@@ -0,0 +1,50 @@
+<!--
+注意：此 README 由 <https://github.com/YunoHost/apps/tree/master/tools/readme_generator> 自动生成
+请勿手动编辑。
+-->
+
+# YunoHost 的 HumHub
+
+[![集成程度](https://dash.yunohost.org/integration/humhub.svg)](https://dash.yunohost.org/appci/app/humhub) ![工作状态](https://ci-apps.yunohost.org/ci/badges/humhub.status.svg) ![维护状态](https://ci-apps.yunohost.org/ci/badges/humhub.maintain.svg)
+
+[![使用 YunoHost 安装 HumHub](https://install-app.yunohost.org/install-with-yunohost.svg)](https://install-app.yunohost.org/?app=humhub)
+
+*[阅读此 README 的其它语言版本。](./ALL_README.md)*
+
+> *通过此软件包，您可以在 YunoHost 服务器上快速、简单地安装 HumHub。*  
+> *如果您还没有 YunoHost，请参阅[指南](https://yunohost.org/install)了解如何安装它。*
+
+## 概况
+
+HumHub is an open source social network platform with a wide variety of use cases as social intranet, community or collaboration platform. HumHub consists of a core application, which can be extended through additional modules and adjusted to your needs by many configuration options. 
+
+
+**分发版本：** 1.15.4~ynh1
+
+**演示：** <https://www.humhub.com/en>
+
+## 截图
+
+![HumHub 的截图](./doc/screenshots/app_small.png)
+
+## 文档与资源
+
+- 官方应用网站： <https://www.humhub.org>
+- 官方管理文档： <https://docs.humhub.org>
+- 上游应用代码库： <https://github.com/humhub/humhub>
+- YunoHost 商店： <https://apps.yunohost.org/app/humhub>
+- 报告 bug： <https://github.com/YunoHost-Apps/humhub_ynh/issues>
+
+## 开发者信息
+
+请向 [`testing` 分支](https://github.com/YunoHost-Apps/humhub_ynh/tree/testing) 发送拉取请求。
+
+如要尝试 `testing` 分支，请这样操作：
+
+```bash
+sudo yunohost app install https://github.com/YunoHost-Apps/humhub_ynh/tree/testing --debug
+或
+sudo yunohost app upgrade humhub -u https://github.com/YunoHost-Apps/humhub_ynh/tree/testing --debug
+```
+
+**有关应用打包的更多信息：** <https://yunohost.org/packaging_apps>
diff --git a/manifest.toml b/manifest.toml
index 480a464..fc1cc55 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -5,7 +5,7 @@ name = "HumHub"
 description.en = "Enterprise Social Network"
 description.fr = "Réseau Social d'Entreprise"
 
-version = "1.15.3~ynh1"
+version = "1.15.4~ynh1"
 
 maintainers = [ "Nils Van Zuijlen" ]
 
@@ -39,15 +39,15 @@ ram.runtime = "50M"
 
     [install.init_main_permission]
     type = "group"
-    default = false
+    default = "visitors"
 
     [install.admin]
     type = "user"
 
 [resources]
         [resources.sources.main]
-        url = "https://download.humhub.com/downloads/install/humhub-1.15.3.tar.gz"
-        sha256 = "8546f81a27303e0647b33b2651d3c75e302ed8e115ada008a23fb92881e62020"
+        url = "https://download.humhub.com/downloads/install/humhub-1.15.4.tar.gz"
+        sha256 = "0842e08d5117f40b4a49fbabf574bf33a30058e592056051841ff60542be60e2"
 
     [resources.system_user]