diff --git a/README.md b/README.md
index 15b3456..a2d367a 100644
--- a/README.md
+++ b/README.md
@@ -1,16 +1,24 @@
-[![Integration level](https://dash.yunohost.org/integration/grav.svg)](https://ci-apps.yunohost.org/ci/apps/grav/)
+# Grav for YunoHost
 
+[![Integration level](https://dash.yunohost.org/integration/grav.svg)](https://dash.yunohost.org/appci/app/grav) ![](https://ci-apps.yunohost.org/ci/badges/grav.status.svg) ![](https://ci-apps.yunohost.org/ci/badges/grav.maintain.svg)  
 [![Install Grav with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=grav)
 
-Grav is a modern open source flat-file CMS.
-
-> *This package allow you to install Grav quickly and simply on a YunoHost server.  
+> *This package allows you to install Grav quickly and simply on a YunoHost server.  
 If you don't have YunoHost, please see [here](https://yunohost.org/#/install) to know how to install and enjoy it.*
 
-* http://getgrav.org/
-* https://github.com/getgrav/grav
+## Overview
+Grav is a modern open source flat-file CMS.
 
-Provided version: **1.6.26**
+Provided version: **1.6.27**
+
+## Documentation
+
+ * Official documentation: https://learn.getgrav.org/16/
+ * YunoHost documentation: If specific documentation is needed, feel free to contribute.
+
+## Limitations
+
+* If installing Grav at the root of a domain, bear in mind that paths starting by `/yunohost` are reserved.
 
 ## Installation
 
@@ -25,15 +33,41 @@ For upgrading (replace `grav` by the actual instance ID if more instances are in
 sudo yunohost app upgrade grav -u https://github.com/YunoHost-Apps/grav_ynh
 ```
 
+## Administration and plugin installation
+
+* You can access the administration panel at `yourdomain.tld/path/admin`. Users created within YunoHost can log in, provided their were given the appropriate permissions (see next section).
+* Grav provides a command line interface. Refer to its documentation, but you will need to specifically call for the PHP version currently used for the app:
+  * Go to your app's directory: `cd /var/www/grav` (or `grav__2`, etc. if you have multiple ones)
+  * `php7.3 bin/grav ...` or `php7.3 bin/gpm ...` 
+* You can install plugins through the admin panel, or through the GPM.
+
 ## Permissions
 
 To make users administrators, give them the `grav.admin` permission.
 To allow users to log in, give them the `grav.user` permission.
 
+#### Supported architectures
+
+* x86-64 - [![Build Status](https://ci-apps.yunohost.org/ci/logs/grav%20%28Apps%29.svg)](https://ci-apps.yunohost.org/ci/apps/grav/)
+* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/grav%20%28Apps%29.svg)](https://ci-apps-arm.yunohost.org/ci/apps/grav/)
+
 ## Links
 
- * Report a bug about this package: https://github.com/YunoHost-Apps/grav_ynh
- * Report a bug about Grav itself: https://github.com/getgrav/grav/issues
+ * Report a bug about this package: https://github.com/YunoHost-Apps/grav_ynh/issues
  * Documentation: https://learn.getgrav.org/
  * Grav website: https://www.getgrav.org/
+ * Upstream app repository: https://github.com/getgrav/grav
  * YunoHost website: https://yunohost.org/
+ 
+---
+
+## Developer info
+
+Please send your pull request to the [testing branch](https://github.com/YunoHost-Apps/grav_ynh/tree/testing).
+
+To try the testing branch, please proceed like that.
+```
+sudo yunohost app install https://github.com/YunoHost-Apps/grav_ynh/tree/testing --debug
+or
+sudo yunohost app upgrade grav -u https://github.com/YunoHost-Apps/grav_ynh/tree/testing --debug
+```
diff --git a/conf/app-upgrade.src b/conf/app-upgrade.src
index cc8ffef..27e419c 100644
--- a/conf/app-upgrade.src
+++ b/conf/app-upgrade.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/getgrav/grav/releases/download/1.6.26/grav-update-v1.6.26.zip
-SOURCE_SUM=3086CFA18AA816F5C5F7573EC920FB4BBAD8E863DEBBB9AC200D54490C61CAA7
+SOURCE_URL=https://github.com/getgrav/grav/releases/download/1.6.27/grav-update-v1.6.27.zip
+SOURCE_SUM=6C5004BE914E58E5D7A19E941E9349E128CB7D1CF327F145E307AF51BE6D96B7
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=true
diff --git a/conf/app.src b/conf/app.src
index 0b208ee..5ea8f26 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/getgrav/grav/releases/download/1.6.26/grav-admin-v1.6.26.zip
-SOURCE_SUM=F43F26D83B94ACD0D3719B6227D3044397B0303D92BA8F956CFAA01A940AF9CE
+SOURCE_URL=https://github.com/getgrav/grav/releases/download/1.6.27/grav-admin-v1.6.27.zip
+SOURCE_SUM=CB8C46DA2C7898527B461415C9D6E5F561B863C793DBAE43D7494ED42104E319
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=true
diff --git a/manifest.json b/manifest.json
index 2272201..0cad33f 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
 		"en": "A modern open source flat-file CMS",
 		"fr": "Un CMS moderne basé sur des fichiers plats"
 	},
-	"version": "1.6.26~ynh1",
+	"version": "1.6.27~ynh1",
 	"url": "https://www.getgrav.org/",
 	"license": "MIT-0",
 	"maintainer": [
@@ -27,7 +27,7 @@
 			"email": "lithrel@randomdomainname.net"
 		}],
 	"requirements": {
-		"yunohost": ">= 3.7.1"
+		"yunohost": ">= 4.0.7"
 	},
 	"multi_instance": true,
 	"services": [