diff --git a/README.md b/README.md
index 9b44dcb9..d2d87aa3 100755
--- a/README.md
+++ b/README.md
@@ -39,8 +39,10 @@ Installation
 
 Easy Setup 
 ---------------------
+- We recommend using the newer [Beta Installer](#beta-installer) if your system supports it. 
 - This is an opinionated setup with logging and SE Linux. So, it is best to setup on a blank server.
 - Supported for CentOS 6, CentOS 7, Debian 7 and Ubuntu 12.04 to 15.x
+- **Does not** work on Ubuntu 16.04, use the [Beta Installer](#beta-installer) instead
 - This script will install the pre-requisites, install bench and setup an ERPNext site
 - Passwords for Frappe, Frappe Administrator and MariaDB (root) will be generated
 - You can then login as **Administrator** with the Administrator password printed 
@@ -61,7 +63,7 @@ sudo bash setup_frappe.sh --setup-production
 ```
 
 ####For Development:
-> We recommend using the [Beta Development Setup](#beta-development-setup) if it supports your OS
+
 
 ```
 Mac OSX:
@@ -85,21 +87,33 @@ You have to explicitly start services by running `bench start`.
 ```
 
 
-Beta Development Setup
+Beta Installer
 ------------------------
 
-Tested on Ubuntu 14.04 to 15.x, Debian 7+, CentOS 7+, and MacOS X. If you find any problems, post them on our forum: [https://discuss.erpnext.com](https://discuss.erpnext.com)
+Tested on Ubuntu 14.04 to 16.04, CentOS 7+, and MacOS X. If you find any problems, post them on our forum: [https://discuss.erpnext.com](https://discuss.erpnext.com)
 
 ```
 Linux: 
 wget https://raw.githubusercontent.com/frappe/bench/develop/playbooks/install.py
 
 Mac OSX:
-curl "https://raw.githubusercontent.com/frappe/bench/master/playbooks/install.py" -o install.py
+curl "https://raw.githubusercontent.com/frappe/bench/develop/playbooks/install.py" -o install.py
+
+# for development
+sudo python install.py --develop
+
+# for production
+sudo python install.py --production
+
+# If you're logged in as root, use --user flag to create a user and install using that user
+sudo python install.py --develop --user frappe
 
-python install.py --develop
 ```
-You have to explicitly start services by running `bench start`. This script requires Python2.7+ installed on your machine. You need to run this with a user that is **not** `root`, but can `sudo`. If you don't have such a user, you can search the web for *How to add a new user in { your OS }* and *How to add an existing user to sudoers in { your OS }*.
+For development, you have to explicitly start services by running `bench start`. This script requires Python2.7+ installed on your machine. You will have to manually create a new site (`bench new-site`) and get apps that you need (`bench get-app`, `bench install-app`).
+
+For production, you will have a preinstalled site with ERPNext installed in it. 
+
+You need to run this with a user that is **not** `root`, but can `sudo`. If you don't have such a user, you can search the web for *How to add a new user in { your OS }* and *How to add an existing user to sudoers in { your OS }*.
 
 On Mac OS X, you will have to create a group with the same name as *{ your User }*. On creating this group, you have to assign *{ your User }* to it. You can do this by going to "System preferences" -> "Users & Groups" -> "+" (as if you were adding new account) -> Under "New account" select "Group" -> Type in group name -> "Create group"
 
@@ -115,8 +129,17 @@ This script will:
 		- WKHTMLtoPDF with patched QT
 	- Initializes a new Bench at `~/frappe/frappe-bench` with `frappe` framework already installed under `apps`.
 	
-You will have to manually create a new site (`bench new-site`) and get apps that you need (`bench get-app`, `bench install-app`).
-
+####Script Options:
+```
+	--help
+	--verbose
+	--develop
+	--production
+	--site
+	--user
+	--bench-branch
+	--repo-url
+```
 
 Updating
 ========
diff --git a/bench/__init__.py b/bench/__init__.py
index ad92bc1d..6353e93b 100644
--- a/bench/__init__.py
+++ b/bench/__init__.py
@@ -1,6 +1,6 @@
 from jinja2 import Environment, PackageLoader
 
-__version__ = "4.0.0-beta"
+__version__ = "4.0.0"
 
 env = Environment(loader=PackageLoader('bench.config'))
 
diff --git a/bench/app.py b/bench/app.py
index e5dd5495..43398f9e 100755
--- a/bench/app.py
+++ b/bench/app.py
@@ -103,7 +103,6 @@ def install_app(app, bench_path='.', verbose=False):
 				find_links=find_links))
 	add_to_appstxt(app, bench_path=bench_path)
 
-
 def remove_app(app, bench_path='.'):
 	if not app in get_apps(bench_path):
 		print "No app named {0}".format(app)
diff --git a/install_scripts/setup_frappe.sh b/install_scripts/setup_frappe.sh
index 56eb7078..e6c7ac7c 100755
--- a/install_scripts/setup_frappe.sh
+++ b/install_scripts/setup_frappe.sh
@@ -134,11 +134,13 @@ add_debian_mariadb_repo() {
 		echo Unsupported Debian Version
 		exit 1
 	fi
-
 	run_cmd sudo apt-get update
 	run_cmd sudo apt-get install -y software-properties-common python-software-properties
 	run_cmd sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xcbcb082a1bb943db
-	run_cmd sudo add-apt-repository "deb http://ams2.mirrors.digitalocean.com/mariadb/repo/10.0/debian $CODENAME main"
+	$repo_test=$(apt-cache search --names-only 'mariadb-server')
+	if [ -z "$repo_test" ]; then
+		run_cmd sudo add-apt-repository "deb http://ams2.mirrors.digitalocean.com/mariadb/repo/10.0/debian $CODENAME main"
+	fi
 }
 
 add_ius_repo() {