diff --git a/erpnext/patches/v4_0/__init__.py b/erpnext/patches/v4_0/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/patches/v4_0/__init__.py
diff --git a/erpnext/patches/v4_0/apply_user_permissions.py b/erpnext/patches/v4_0/apply_user_permissions.py
new file mode 100644
index 0000000..7dae02f
--- /dev/null
+++ b/erpnext/patches/v4_0/apply_user_permissions.py
@@ -0,0 +1,51 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from erpnext.hr.doctype.employee.employee import EmployeeUserDisabledError
+
+def execute():
+	update_hr_permissions()
+	update_permissions()
+	remove_duplicate_user_permissions()
+	frappe.clear_cache()
+
+def update_hr_permissions():
+	from frappe.core.page.user_permissions import user_permissions
+
+	# add set user permissions rights to HR Manager
+	frappe.db.sql("""update `tabDocPerm` set `set_user_permissions`=1 where parent in ('Employee', 'Leave Application')
+		and role='HR Manager' and permlevel=0 and `read`=1""")
+
+	# apply user permissions on Employee and Leave Application
+	frappe.db.sql("""update `tabDocPerm` set `apply_user_permissions`=1 where parent in ('Employee', 'Leave Application')
+		and role in ('Employee', 'Leave Approver') and permlevel=0 and `read`=1""")
+
+	frappe.clear_cache()
+
+	# save employees to run on_update events
+	for employee in frappe.db.sql_list("""select name from `tabEmployee` where docstatus < 2"""):
+		try:
+			emp = frappe.get_doc("Employee", employee)
+			emp.ignore_mandatory = True
+			emp.save()
+		except EmployeeUserDisabledError:
+			pass
+
+def update_permissions():
+	# clear match conditions other than owner
+	frappe.db.sql("""update tabDocPerm set `match`=''
+		where ifnull(`match`,'') not in ('', 'owner')""")
+
+def remove_duplicate_user_permissions():
+	# remove duplicate user_permissions (if they exist)
+	for d in frappe.db.sql("""select parent, defkey, defvalue,
+		count(*) as cnt from tabDefaultValue
+		where parent not in ('__global', '__default')
+		group by parent, defkey, defvalue""", as_dict=1):
+		if d.cnt > 1:
+			# order by parenttype so that user permission does not get removed!
+			frappe.db.sql("""delete from tabDefaultValue where `parent`=%s and `defkey`=%s and
+				`defvalue`=%s order by parenttype limit %s""", (d.parent, d.defkey, d.defvalue, d.cnt-1))
+
diff --git a/erpnext/patches/v4_0/countrywise_coa.py b/erpnext/patches/v4_0/countrywise_coa.py
new file mode 100644
index 0000000..f11bdb7
--- /dev/null
+++ b/erpnext/patches/v4_0/countrywise_coa.py
@@ -0,0 +1,29 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("setup", 'doctype', "company")
+	frappe.reload_doc("accounts", 'doctype', "account")
+
+	frappe.db.sql("""update tabAccount set account_type='Cash'
+		where account_type='Bank or Cash' and account_name in ('Cash', 'Cash In Hand')""")
+
+	frappe.db.sql("""update tabAccount set account_type='Stock'
+		where account_name = 'Stock Assets'""")
+
+	ac_types = {"Fixed Asset Account": "Fixed Asset", "Bank or Cash": "Bank"}
+	for old, new in ac_types.items():
+		frappe.db.sql("""update tabAccount set account_type=%s
+			where account_type=%s""", (new, old))
+
+	try:
+		frappe.db.sql("""update `tabAccount` set report_type =
+			if(is_pl_account='Yes', 'Profit and Loss', 'Balance Sheet')""")
+
+		frappe.db.sql("""update `tabAccount` set balance_must_be=debit_or_credit
+			where ifnull(allow_negative_balance, 0) = 0""")
+	except:
+		pass
diff --git a/erpnext/patches/v4_0/create_custom_fields_for_india_specific_fields.py b/erpnext/patches/v4_0/create_custom_fields_for_india_specific_fields.py
new file mode 100644
index 0000000..5bca5e6
--- /dev/null
+++ b/erpnext/patches/v4_0/create_custom_fields_for_india_specific_fields.py
@@ -0,0 +1,63 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.custom.doctype.custom_field.custom_field import create_custom_field_if_values_exist
+
+def execute():
+	frappe.reload_doc("stock", "doctype", "purchase_receipt")
+	frappe.reload_doc("hr", "doctype", "employee")
+	frappe.reload_doc("hr", "doctype", "salary_slip")
+
+	india_specific_fields = {
+		"Purchase Receipt": [{
+			"label": "Supplier Shipment No",
+			"fieldname": "challan_no",
+			"fieldtype": "Data",
+			"insert_after": "is_subcontracted"
+		}, {
+			"label": "Supplier Shipment Date",
+			"fieldname": "challan_date",
+			"fieldtype": "Date",
+			"insert_after": "is_subcontracted"
+		}],
+		"Employee": [{
+			"label": "PAN Number",
+			"fieldname": "pan_number",
+			"fieldtype": "Data",
+			"insert_after": "company_email"
+		}, {
+			"label": "Gratuity LIC Id",
+			"fieldname": "gratuity_lic_id",
+			"fieldtype": "Data",
+			"insert_after": "company_email"
+		}, {
+			"label": "Esic Card No",
+			"fieldname": "esic_card_no",
+			"fieldtype": "Data",
+			"insert_after": "bank_ac_no"
+		}, {
+			"label": "PF Number",
+			"fieldname": "pf_number",
+			"fieldtype": "Data",
+			"insert_after": "bank_ac_no"
+		}],
+		"Salary Slip": [{
+			"label": "Esic No",
+			"fieldname": "esic_no",
+			"fieldtype": "Data",
+			"insert_after": "letter_head",
+			"permlevel": 1
+		}, {
+			"label": "PF Number",
+			"fieldname": "pf_no",
+			"fieldtype": "Data",
+			"insert_after": "letter_head",
+			"permlevel": 1
+		}]
+	}
+
+	for dt, docfields in india_specific_fields.items():
+		for df in docfields:
+			create_custom_field_if_values_exist(dt, df)
diff --git a/erpnext/patches/v4_0/create_price_list_if_missing.py b/erpnext/patches/v4_0/create_price_list_if_missing.py
new file mode 100644
index 0000000..f65b7cb
--- /dev/null
+++ b/erpnext/patches/v4_0/create_price_list_if_missing.py
@@ -0,0 +1,35 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe import _
+from frappe.utils.nestedset import get_root_of
+
+def execute():
+	# setup not complete
+	if not frappe.db.sql("""select name from tabCompany limit 1"""):
+		return
+
+	if "shopping_cart" in frappe.get_installed_apps():
+		frappe.reload_doc("shopping_cart", "doctype", "shopping_cart_settings")
+
+	if not frappe.db.sql("select name from `tabPrice List` where buying=1"):
+		create_price_list(_("Standard Buying"), buying=1)
+
+	if not frappe.db.sql("select name from `tabPrice List` where selling=1"):
+		create_price_list(_("Standard Selling"), selling=1)
+
+def create_price_list(pl_name, buying=0, selling=0):
+	price_list = frappe.get_doc({
+		"doctype": "Price List",
+		"price_list_name": pl_name,
+		"enabled": 1,
+		"buying": buying,
+		"selling": selling,
+		"currency": frappe.db.get_default("currency"),
+		"valid_for_territories": [{
+			"territory": get_root_of("Territory")
+		}]
+	})
+	price_list.insert()
diff --git a/erpnext/patches/v4_0/customer_discount_to_pricing_rule.py b/erpnext/patches/v4_0/customer_discount_to_pricing_rule.py
new file mode 100644
index 0000000..bd27174
--- /dev/null
+++ b/erpnext/patches/v4_0/customer_discount_to_pricing_rule.py
@@ -0,0 +1,33 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.utils.nestedset import get_root_of
+
+def execute():
+	frappe.reload_doc("accounts", "doctype", "pricing_rule")
+
+	frappe.db.auto_commit_on_many_writes = True
+
+	default_item_group = get_root_of("Item Group")
+
+	for d in frappe.db.sql("""select * from `tabCustomer Discount`
+		where ifnull(parent, '') != ''""", as_dict=1):
+			if not d.discount:
+				continue
+
+			frappe.get_doc({
+				"doctype": "Pricing Rule",
+				"apply_on": "Item Group",
+				"item_group": d.item_group or default_item_group,
+				"applicable_for": "Customer",
+				"customer": d.parent,
+				"price_or_discount": "Discount Percentage",
+				"discount_percentage": d.discount,
+				"selling": 1
+			}).insert()
+
+	frappe.db.auto_commit_on_many_writes = False
+
+	frappe.delete_doc("DocType", "Customer Discount")
diff --git a/erpnext/patches/v4_0/fields_to_be_renamed.py b/erpnext/patches/v4_0/fields_to_be_renamed.py
new file mode 100644
index 0000000..642a0b4
--- /dev/null
+++ b/erpnext/patches/v4_0/fields_to_be_renamed.py
@@ -0,0 +1,109 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.model import rename_field
+from frappe.modules import scrub, get_doctype_module
+
+rename_map = {
+	"Quotation Item": [
+		["ref_rate", "price_list_rate"],
+		["base_ref_rate", "base_price_list_rate"],
+		["adj_rate", "discount_percentage"],
+		["export_rate", "rate"],
+		["basic_rate", "base_rate"],
+		["amount", "base_amount"],
+		["export_amount", "amount"]
+	],
+
+	"Sales Order Item": [
+		["ref_rate", "price_list_rate"],
+		["base_ref_rate", "base_price_list_rate"],
+		["adj_rate", "discount_percentage"],
+		["export_rate", "rate"],
+		["basic_rate", "base_rate"],
+		["amount", "base_amount"],
+		["export_amount", "amount"],
+		["reserved_warehouse", "warehouse"]
+	],
+
+	"Delivery Note Item": [
+		["ref_rate", "price_list_rate"],
+		["base_ref_rate", "base_price_list_rate"],
+		["adj_rate", "discount_percentage"],
+		["export_rate", "rate"],
+		["basic_rate", "base_rate"],
+		["amount", "base_amount"],
+		["export_amount", "amount"]
+	],
+
+	"Sales Invoice Item": [
+		["ref_rate", "price_list_rate"],
+		["base_ref_rate", "base_price_list_rate"],
+		["adj_rate", "discount_percentage"],
+		["export_rate", "rate"],
+		["basic_rate", "base_rate"],
+		["amount", "base_amount"],
+		["export_amount", "amount"]
+	],
+
+	"Supplier Quotation Item": [
+		["import_ref_rate", "price_list_rate"],
+		["purchase_ref_rate", "base_price_list_rate"],
+		["discount_rate", "discount_percentage"],
+		["import_rate", "rate"],
+		["purchase_rate", "base_rate"],
+		["amount", "base_amount"],
+		["import_amount", "amount"]
+	],
+
+	"Purchase Order Item": [
+		["import_ref_rate", "price_list_rate"],
+		["purchase_ref_rate", "base_price_list_rate"],
+		["discount_rate", "discount_percentage"],
+		["import_rate", "rate"],
+		["purchase_rate", "base_rate"],
+		["amount", "base_amount"],
+		["import_amount", "amount"]
+	],
+
+	"Purchase Receipt Item": [
+		["import_ref_rate", "price_list_rate"],
+		["purchase_ref_rate", "base_price_list_rate"],
+		["discount_rate", "discount_percentage"],
+		["import_rate", "rate"],
+		["purchase_rate", "base_rate"],
+		["amount", "base_amount"],
+		["import_amount", "amount"]
+	],
+
+	"Purchase Invoice Item": [
+		["import_ref_rate", "price_list_rate"],
+		["purchase_ref_rate", "base_price_list_rate"],
+		["discount_rate", "discount_percentage"],
+		["import_rate", "rate"],
+		["rate", "base_rate"],
+		["amount", "base_amount"],
+		["import_amount", "amount"],
+		["expense_head", "expense_account"]
+	],
+
+	"Item": [
+		["purchase_account", "expense_account"],
+		["default_sales_cost_center", "selling_cost_center"],
+		["cost_center", "buying_cost_center"],
+		["default_income_account", "income_account"],
+	],
+	"Item Price": [
+		["ref_rate", "price_list_rate"]
+	]
+}
+
+def execute():
+	for dn in rename_map:
+		frappe.reload_doc(get_doctype_module(dn), "doctype", scrub(dn))
+
+	for dt, field_list in rename_map.items():
+		for field in field_list:
+			rename_field(dt, field[0], field[1])
diff --git a/erpnext/patches/v4_0/fix_address_template.py b/erpnext/patches/v4_0/fix_address_template.py
new file mode 100644
index 0000000..5aed489
--- /dev/null
+++ b/erpnext/patches/v4_0/fix_address_template.py
@@ -0,0 +1,12 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	missing_line = """{{ address_line1 }}<br>"""
+	for name, template in frappe.db.sql("select name, template from `tabAddress Template`"):
+		if missing_line not in template:
+			d = frappe.get_doc("Address Template", name)
+			d.template = missing_line + d.template
+			d.save()
diff --git a/erpnext/patches/v4_0/fix_case_of_hr_module_def.py b/erpnext/patches/v4_0/fix_case_of_hr_module_def.py
new file mode 100644
index 0000000..73b4e7f
--- /dev/null
+++ b/erpnext/patches/v4_0/fix_case_of_hr_module_def.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	hr = frappe.db.get_value("Module Def", "HR")
+	if hr == "Hr":
+		frappe.rename_doc("Module Def", "Hr", "HR")
+		frappe.db.set_value("Module Def", "HR", "module_name", "HR")
+
+	frappe.clear_cache()
+	frappe.setup_module_map()
diff --git a/erpnext/patches/v4_0/fix_contact_address.py b/erpnext/patches/v4_0/fix_contact_address.py
new file mode 100644
index 0000000..91d1a0b
--- /dev/null
+++ b/erpnext/patches/v4_0/fix_contact_address.py
@@ -0,0 +1,12 @@
+import frappe
+
+def execute():
+	frappe.reload_doc("website", "doctype", "contact_us_settings")
+	address = frappe.db.get_value("Contact Us Settings", None, "address")
+	if address:
+		address = frappe.get_doc("Address", address)
+		contact = frappe.get_doc("Contact Us Settings", "Contact Us Settings")
+		for f in ("address_title", "address_line1", "address_line2", "city", "state", "country", "pincode"):
+			contact.set(f, address.get(f))
+		
+		contact.save()
\ No newline at end of file
diff --git a/erpnext/patches/v4_0/fix_employee_user_id.py b/erpnext/patches/v4_0/fix_employee_user_id.py
new file mode 100644
index 0000000..d366fa4
--- /dev/null
+++ b/erpnext/patches/v4_0/fix_employee_user_id.py
@@ -0,0 +1,23 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+
+import frappe
+from frappe.utils import get_fullname
+
+def execute():
+	for user_id in frappe.db.sql_list("""select distinct user_id from `tabEmployee`
+		where ifnull(user_id, '')!=''
+		group by user_id having count(name) > 1"""):
+
+		fullname = get_fullname(user_id)
+		employee = frappe.db.get_value("Employee", {"employee_name": fullname, "user_id": user_id})
+
+		if employee:
+			frappe.db.sql("""update `tabEmployee` set user_id=null
+				where user_id=%s and name!=%s""", (user_id, employee))
+		else:
+			count = frappe.db.sql("""select count(*) from `tabEmployee` where user_id=%s""", user_id)[0][0]
+			frappe.db.sql("""update `tabEmployee` set user_id=null
+				where user_id=%s limit %s""", (user_id, count - 1))
diff --git a/erpnext/patches/v4_0/global_defaults_to_system_settings.py b/erpnext/patches/v4_0/global_defaults_to_system_settings.py
new file mode 100644
index 0000000..57b21ae
--- /dev/null
+++ b/erpnext/patches/v4_0/global_defaults_to_system_settings.py
@@ -0,0 +1,39 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+
+import frappe
+from collections import Counter
+from frappe.core.doctype.user.user import STANDARD_USERS
+
+def execute():
+	frappe.reload_doc("core", "doctype", "system_settings")
+	system_settings = frappe.get_doc("System Settings")
+
+	# set values from global_defauls
+	global_defaults = frappe.db.get_value("Global Defaults", None,
+		["time_zone", "date_format", "number_format", "float_precision", "session_expiry"], as_dict=True)
+
+	if global_defaults:
+		for key, val in global_defaults.items():
+			if not system_settings.get(key):
+				system_settings.set(key, val)
+
+	# language
+	if not system_settings.get("language"):
+		# find most common language
+		lang = frappe.db.sql_list("""select language from `tabUser`
+			where ifnull(language, '')!='' and language not like "Loading%%" and name not in ({standard_users})""".format(
+			standard_users=", ".join(["%s"]*len(STANDARD_USERS))), tuple(STANDARD_USERS))
+		lang = Counter(lang).most_common(1)
+		lang = (len(lang) > 0) and lang[0][0] or "english"
+
+		system_settings.language = lang
+
+	system_settings.ignore_mandatory = True
+	system_settings.save()
+
+	global_defaults = frappe.get_doc("Global Defaults")
+	global_defaults.ignore_mandatory = True
+	global_defaults.save()
diff --git a/erpnext/patches/v4_0/import_country_codes.py b/erpnext/patches/v4_0/import_country_codes.py
new file mode 100644
index 0000000..e2e9f9d
--- /dev/null
+++ b/erpnext/patches/v4_0/import_country_codes.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.geo.country_info import get_all
+from erpnext.setup.install import import_country_and_currency
+
+def execute():
+	frappe.reload_doc("setup", "doctype", "country")
+	import_country_and_currency()
+	for name, country in get_all().iteritems():
+		frappe.set_value("Country", name, "code", country.get("code"))
\ No newline at end of file
diff --git a/erpnext/patches/v4_0/map_charge_to_taxes_and_charges.py b/erpnext/patches/v4_0/map_charge_to_taxes_and_charges.py
new file mode 100644
index 0000000..a814245
--- /dev/null
+++ b/erpnext/patches/v4_0/map_charge_to_taxes_and_charges.py
@@ -0,0 +1,16 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	# udpate sales cycle
+	for d in ['Sales Invoice', 'Sales Order', 'Quotation', 'Delivery Note']:
+		frappe.db.sql("""update `tab%s` set taxes_and_charges=charge""" % d)
+
+	# udpate purchase cycle
+	for d in ['Purchase Invoice', 'Purchase Order', 'Supplier Quotation', 'Purchase Receipt']:
+		frappe.db.sql("""update `tab%s` set taxes_and_charges=purchase_other_charges""" % d)
+	
+	frappe.db.sql("""update `tabPurchase Taxes and Charges` set parentfield='other_charges'""")
diff --git a/erpnext/patches/v4_0/move_warehouse_user_to_restrictions.py b/erpnext/patches/v4_0/move_warehouse_user_to_restrictions.py
new file mode 100644
index 0000000..35b3c86
--- /dev/null
+++ b/erpnext/patches/v4_0/move_warehouse_user_to_restrictions.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+import frappe.permissions
+
+def execute():
+	for warehouse, user in frappe.db.sql("""select parent, user from `tabWarehouse User`"""):
+		frappe.permissions.add_user_permission("Warehouse", warehouse, user)
+
+	frappe.delete_doc_if_exists("DocType", "Warehouse User")
+	frappe.reload_doc("stock", "doctype", "warehouse")
diff --git a/erpnext/patches/v4_0/new_address_template.py b/erpnext/patches/v4_0/new_address_template.py
new file mode 100644
index 0000000..7a5dabc
--- /dev/null
+++ b/erpnext/patches/v4_0/new_address_template.py
@@ -0,0 +1,13 @@
+import frappe
+
+def execute():
+	frappe.reload_doc("utilities", "doctype", "address_template")
+	if not frappe.db.sql("select name from `tabAddress Template`"):
+		try:
+			d = frappe.new_doc("Address Template")
+			d.update({"country":frappe.db.get_default("country") or
+				frappe.db.get_value("Global Defaults", "Global Defaults", "country")})
+			d.insert()
+		except:
+			print frappe.get_traceback()
+
diff --git a/erpnext/patches/v4_0/reload_sales_print_format.py b/erpnext/patches/v4_0/reload_sales_print_format.py
new file mode 100644
index 0000000..99184e3
--- /dev/null
+++ b/erpnext/patches/v4_0/reload_sales_print_format.py
@@ -0,0 +1,8 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc('accounts', 'Print Format', 'POS Invoice')
diff --git a/erpnext/patches/v4_0/remove_employee_role_if_no_employee.py b/erpnext/patches/v4_0/remove_employee_role_if_no_employee.py
new file mode 100644
index 0000000..c1f3689
--- /dev/null
+++ b/erpnext/patches/v4_0/remove_employee_role_if_no_employee.py
@@ -0,0 +1,18 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+import frappe.permissions
+
+def execute():
+	for user in frappe.db.sql_list("select distinct parent from `tabUserRole` where role='Employee'"):
+		# if employee record does not exists, remove employee role!
+		if not frappe.db.get_value("Employee", {"user_id": user}):
+			try:
+				user = frappe.get_doc("User", user)
+				for role in user.get("user_roles", {"role": "Employee"}):
+					user.get("user_roles").remove(role)
+				user.save()
+			except frappe.DoesNotExistError:
+				pass
diff --git a/erpnext/patches/v4_0/remove_module_home_pages.py b/erpnext/patches/v4_0/remove_module_home_pages.py
new file mode 100644
index 0000000..f7407a6
--- /dev/null
+++ b/erpnext/patches/v4_0/remove_module_home_pages.py
@@ -0,0 +1,10 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	for page in ("accounts-home", "website-home", "support-home", "stock-home", "selling-home", "projects-home",
+		"manufacturing-home", "hr-home", "buying-home"):
+		frappe.delete_doc("Page", page)
\ No newline at end of file
diff --git a/erpnext/patches/v4_0/rename_sitemap_to_route.py b/erpnext/patches/v4_0/rename_sitemap_to_route.py
new file mode 100644
index 0000000..b933e36
--- /dev/null
+++ b/erpnext/patches/v4_0/rename_sitemap_to_route.py
@@ -0,0 +1,16 @@
+import frappe
+import frappe.model
+
+def execute():
+	frappe.reload_doc("setup", "doctype", "item_group")
+	frappe.reload_doc("stock", "doctype", "item")
+	frappe.reload_doc("setup", "doctype", "sales_partner")
+	
+	try:
+		frappe.model.rename_field("Item Group", "parent_website_sitemap", "parent_website_route")
+		frappe.model.rename_field("Item", "parent_website_sitemap", "parent_website_route")
+		frappe.model.rename_field("Sales Partner", "parent_website_sitemap",
+			 "parent_website_route")
+	except Exception, e:
+		if e.args[0]!=1054:
+			raise
\ No newline at end of file
diff --git a/erpnext/patches/v4_0/reset_permissions_for_masters.py b/erpnext/patches/v4_0/reset_permissions_for_masters.py
new file mode 100644
index 0000000..b0bc123
--- /dev/null
+++ b/erpnext/patches/v4_0/reset_permissions_for_masters.py
@@ -0,0 +1,20 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+from frappe.permissions import reset_perms
+
+def execute():
+	for doctype in ("About Us Settings", "Accounts Settings", "Activity Type",
+		"Blog Category", "Blog Settings", "Blogger", "Branch", "Brand", "Buying Settings",
+		"Comment", "Communication", "Company", "Contact Us Settings",
+		"Country", "Currency", "Currency Exchange", "Deduction Type", "Department",
+		"Designation", "Earning Type", "Event", "Feed", "File Data", "Fiscal Year",
+		"HR Settings", "Industry Type", "Leave Type", "Letter Head",
+		"Mode of Payment", "Module Def", "Naming Series", "POS Setting", "Print Heading",
+		"Report", "Role", "Selling Settings", "Stock Settings", "Supplier Type", "UOM"):
+		try:
+			reset_perms(doctype)
+		except:
+			print "Error resetting perms for", doctype
+			raise
diff --git a/erpnext/patches/v4_0/save_default_letterhead.py b/erpnext/patches/v4_0/save_default_letterhead.py
new file mode 100644
index 0000000..a6db0cd
--- /dev/null
+++ b/erpnext/patches/v4_0/save_default_letterhead.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	"""save default letterhead to set default_letter_head_content"""
+	try:
+		letter_head = frappe.get_doc("Letter Head", {"is_default": 1})
+		letter_head.save()
+	except frappe.DoesNotExistError:
+		pass
diff --git a/erpnext/patches/v4_0/set_naming_series_property_setter.py b/erpnext/patches/v4_0/set_naming_series_property_setter.py
new file mode 100644
index 0000000..7ebcc1e
--- /dev/null
+++ b/erpnext/patches/v4_0/set_naming_series_property_setter.py
@@ -0,0 +1,98 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+
+import frappe
+from frappe.custom.doctype.property_setter.property_setter import make_property_setter
+
+doctype_series_map = {
+	'Attendance': 'ATT-',
+	'C-Form': 'C-FORM-',
+	'Customer': 'CUST-',
+	'Customer Issue': 'CI-',
+	'Delivery Note': 'DN-',
+	'Installation Note': 'IN-',
+	'Item': 'ITEM-',
+	'Journal Voucher': 'JV-',
+	'Lead': 'LEAD-',
+	'Opportunity': 'OPTY-',
+	'Packing Slip': 'PS-',
+	'Production Order': 'PRO-',
+	'Purchase Invoice': 'PINV-',
+	'Purchase Order': 'PO-',
+	'Purchase Receipt': 'PREC-',
+	'Quality Inspection': 'QI-',
+	'Quotation': 'QTN-',
+	'Sales Invoice': 'SINV-',
+	'Sales Order': 'SO-',
+	'Stock Entry': 'STE-',
+	'Supplier': 'SUPP-',
+	'Supplier Quotation': 'SQTN-',
+	'Issue': 'SUP-'
+}
+
+def execute():
+	series_to_set = get_series_to_set()
+	for doctype, opts in series_to_set.items():
+		print "Setting naming series", doctype, opts
+		set_series(doctype, opts["options"], opts["default"])
+
+def set_series(doctype, options, default):
+	make_property_setter(doctype, "naming_series", "options", options, "Text")
+	make_property_setter(doctype, "naming_series", "default", default, "Text")
+
+def get_series_to_set():
+	series_to_set = {}
+
+	for doctype, new_series in doctype_series_map.items():
+		# you can't fix what does not exist :)
+		if not frappe.db.a_row_exists(doctype):
+			continue
+
+		series_to_preserve = get_series_to_preserve(doctype, new_series)
+
+		if not series_to_preserve:
+			continue
+
+		default_series = get_default_series(doctype, new_series)
+		if not default_series:
+			continue
+
+		existing_series = (frappe.get_meta(doctype).get_field("naming_series").options or "").split("\n")
+		existing_series = filter(None, [d.strip() for d in existing_series])
+
+		if (not (set(existing_series).difference(series_to_preserve) or set(series_to_preserve).difference(existing_series))
+			and len(series_to_preserve)==len(existing_series)):
+			# print "No change for", doctype, ":", existing_series, "=", series_to_preserve
+			continue
+
+		# set naming series property setter
+		series_to_preserve = list(set(series_to_preserve + existing_series))
+		if new_series in series_to_preserve:
+			series_to_preserve.remove(new_series)
+
+		if series_to_preserve:
+			series_to_set[doctype] = {"options": "\n".join(series_to_preserve), "default": default_series}
+
+	return series_to_set
+
+def get_series_to_preserve(doctype, new_series):
+	series_to_preserve = frappe.db.sql_list("""select distinct naming_series from `tab{doctype}`
+		where ifnull(naming_series, '') not in ('', %s)""".format(doctype=doctype), new_series)
+
+	series_to_preserve.sort()
+
+	return series_to_preserve
+
+def get_default_series(doctype, new_series):
+	default_series = frappe.db.sql("""select naming_series from `tab{doctype}` where ifnull(naming_series, '') not in ('', %s)
+		and creation=(select max(creation) from `tab{doctype}`
+			where ifnull(naming_series, '') not in ('', %s)) order by creation desc limit 1""".format(doctype=doctype),
+		(new_series, new_series))
+
+	if not (default_series and default_series[0][0]):
+		print "[Skipping] Cannot guess which naming series to use for", doctype
+		return
+
+	return default_series[0][0]
diff --git a/erpnext/patches/v4_0/set_pricing_rule_for_buying_or_selling.py b/erpnext/patches/v4_0/set_pricing_rule_for_buying_or_selling.py
new file mode 100644
index 0000000..8be846f
--- /dev/null
+++ b/erpnext/patches/v4_0/set_pricing_rule_for_buying_or_selling.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("accounts", "doctype", "pricing_rule")
+	frappe.db.sql("""update `tabPricing Rule` set selling=1 where ifnull(applicable_for, '') in
+		('', 'Customer', 'Customer Group', 'Territory', 'Sales Partner', 'Campaign')""")
+
+	frappe.db.sql("""update `tabPricing Rule` set buying=1 where ifnull(applicable_for, '') in
+		('', 'Supplier', 'Supplier Type')""")
diff --git a/erpnext/patches/v4_0/split_email_settings.py b/erpnext/patches/v4_0/split_email_settings.py
new file mode 100644
index 0000000..c04e1d5
--- /dev/null
+++ b/erpnext/patches/v4_0/split_email_settings.py
@@ -0,0 +1,67 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	print "WARNING!!!! Email Settings not migrated. Please setup your email again."
+
+	# this will happen if you are migrating very old accounts
+	# comment out this line below and remember to create new Email Accounts
+	# for incoming and outgoing mails
+	raise Exception
+
+	return
+
+
+	frappe.reload_doc("core", "doctype", "outgoing_email_settings")
+	frappe.reload_doc("support", "doctype", "support_email_settings")
+
+	email_settings = get_email_settings()
+	map_outgoing_email_settings(email_settings)
+	map_support_email_settings(email_settings)
+
+
+def map_outgoing_email_settings(email_settings):
+	outgoing_email_settings = frappe.get_doc("Outgoing Email Settings")
+	for fieldname in (("outgoing_mail_server", "mail_server"),
+		"use_ssl", "mail_port", "mail_login", "mail_password",
+		"always_use_login_id_as_sender", "auto_email_id"):
+
+		if isinstance(fieldname, tuple):
+			from_fieldname, to_fieldname = fieldname
+		else:
+			from_fieldname = to_fieldname = fieldname
+
+		outgoing_email_settings.set(to_fieldname, email_settings.get(from_fieldname))
+
+	outgoing_email_settings._fix_numeric_types()
+	outgoing_email_settings.save()
+
+def map_support_email_settings(email_settings):
+	support_email_settings = frappe.get_doc("Support Email Settings")
+
+	for fieldname in ("sync_support_mails", "support_email",
+		("support_host", "mail_server"),
+		("support_use_ssl", "use_ssl"),
+		("support_username", "mail_login"),
+		("support_password", "mail_password"),
+		"support_signature", "send_autoreply", "support_autoreply"):
+
+		if isinstance(fieldname, tuple):
+			from_fieldname, to_fieldname = fieldname
+		else:
+			from_fieldname = to_fieldname = fieldname
+
+		support_email_settings.set(to_fieldname, email_settings.get(from_fieldname))
+
+	support_email_settings._fix_numeric_types()
+	support_email_settings.save()
+
+def get_email_settings():
+	ret = {}
+	for field, value in frappe.db.sql("select field, value from tabSingles where doctype='Email Settings'"):
+		ret[field] = value
+	return ret
+
diff --git a/erpnext/patches/v4_0/update_account_root_type.py b/erpnext/patches/v4_0/update_account_root_type.py
new file mode 100644
index 0000000..10f6cda
--- /dev/null
+++ b/erpnext/patches/v4_0/update_account_root_type.py
@@ -0,0 +1,34 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("accounts", "doctype", "account")
+
+	account_table_columns = frappe.db.get_table_columns("Account")
+	if "debit_or_credit" in account_table_columns and "is_pl_account" in account_table_columns:
+		frappe.db.sql("""UPDATE tabAccount
+			SET root_type = CASE
+				WHEN (debit_or_credit='Debit' and is_pl_account = 'No') THEN 'Asset'
+				WHEN (debit_or_credit='Credit' and is_pl_account = 'No') THEN 'Liability'
+				WHEN (debit_or_credit='Debit' and is_pl_account = 'Yes') THEN 'Expense'
+				WHEN (debit_or_credit='Credit' and is_pl_account = 'Yes') THEN 'Income'
+				END
+			WHERE ifnull(parent_account, '') = ''
+		""")
+
+	else:
+		for key, root_type in (("asset", "Asset"), ("liabilities", "Liability"), ("expense", "Expense"),
+			("income", "Income")):
+			frappe.db.sql("""update tabAccount set root_type=%s where name like %s
+				and ifnull(parent_account, '')=''""", (root_type, "%" + key + "%"))
+
+	for root in frappe.db.sql("""SELECT name, lft, rgt, root_type FROM `tabAccount`
+		WHERE ifnull(parent_account, '')=''""",	as_dict=True):
+			if root.root_type:
+				frappe.db.sql("""UPDATE tabAccount SET root_type=%s WHERE lft>%s and rgt<%s""",
+					(root.root_type, root.lft, root.rgt))
+			else:
+				print b"Root type not found for {0}".format(root.name.encode("utf-8"))
diff --git a/erpnext/patches/v4_0/update_custom_print_formats_for_renamed_fields.py b/erpnext/patches/v4_0/update_custom_print_formats_for_renamed_fields.py
new file mode 100644
index 0000000..60d45cf
--- /dev/null
+++ b/erpnext/patches/v4_0/update_custom_print_formats_for_renamed_fields.py
@@ -0,0 +1,36 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+import re
+
+def execute():
+	# NOTE: sequence is important
+	fields_list = (
+		("amount", "base_amount"),
+		("ref_rate", "price_list_rate"),
+		("base_ref_rate", "base_price_list_rate"),
+		("adj_rate", "discount_percentage"),
+		("export_rate", "rate"),
+		("basic_rate", "base_rate"),
+		("export_amount", "amount"),
+		("reserved_warehouse", "warehouse"),
+		("import_ref_rate", "price_list_rate"),
+		("purchase_ref_rate", "base_price_list_rate"),
+		("discount_rate", "discount_percentage"),
+		("import_rate", "rate"),
+		("purchase_rate", "base_rate"),
+		("import_amount", "amount")
+	)
+
+	condition = " or ".join("""html like "%%{}%%" """.format(d[0].replace("_", "\\_")) for d in fields_list
+		if d[0] != "amount")
+
+	for name, html in frappe.db.sql("""select name, html from `tabPrint Format`
+		where standard = 'No' and ({}) and html not like '%%frappe.%%'""".format(condition)):
+			html = html.replace("wn.", "frappe.")
+			for from_field, to_field in fields_list:
+				html = re.sub(r"\b{}\b".format(from_field), to_field, html)
+
+			frappe.db.set_value("Print Format", name, "html", html)
diff --git a/erpnext/patches/v4_0/update_incharge_name_to_sales_person_in_maintenance_schedule.py b/erpnext/patches/v4_0/update_incharge_name_to_sales_person_in_maintenance_schedule.py
new file mode 100644
index 0000000..11f0090
--- /dev/null
+++ b/erpnext/patches/v4_0/update_incharge_name_to_sales_person_in_maintenance_schedule.py
@@ -0,0 +1,12 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("support", "doctype", "maintenance_schedule_detail")
+	frappe.reload_doc("support", "doctype", "maintenance_schedule_item")
+	
+	frappe.db.sql("""update `tabMaintenance Schedule Detail` set sales_person=incharge_name""")
+	frappe.db.sql("""update `tabMaintenance Schedule Item` set sales_person=incharge_name""")
\ No newline at end of file
diff --git a/erpnext/patches/v4_0/update_other_charges_in_custom_purchase_print_formats.py b/erpnext/patches/v4_0/update_other_charges_in_custom_purchase_print_formats.py
new file mode 100644
index 0000000..c0f9ee0
--- /dev/null
+++ b/erpnext/patches/v4_0/update_other_charges_in_custom_purchase_print_formats.py
@@ -0,0 +1,12 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+import re
+
+def execute():
+	for name, html in frappe.db.sql("""select name, html from `tabPrint Format`
+		where standard = 'No' and html like '%%purchase\\_tax\\_details%%'"""):
+			html = re.sub(r"\bpurchase_tax_details\b", "other_charges", html)
+			frappe.db.set_value("Print Format", name, "html", html)
diff --git a/erpnext/patches/v4_0/update_tax_amount_after_discount.py b/erpnext/patches/v4_0/update_tax_amount_after_discount.py
new file mode 100644
index 0000000..e935bc4
--- /dev/null
+++ b/erpnext/patches/v4_0/update_tax_amount_after_discount.py
@@ -0,0 +1,20 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("accounts", "doctype", "sales_taxes_and_charges")
+	docs_with_discount_amount = frappe._dict()
+	for dt in ["Quotation", "Sales Order", "Delivery Note", "Sales Invoice"]:
+		records = frappe.db.sql_list("""select name from `tab%s`
+			where ifnull(discount_amount, 0) > 0 and docstatus=1""" % dt)
+		docs_with_discount_amount[dt] = records
+
+	for dt, discounted_records in docs_with_discount_amount.items():
+		frappe.db.sql("""update `tabSales Taxes and Charges`
+			set tax_amount_after_discount_amount = tax_amount
+			where parenttype = %s and parent not in (%s)""" %
+			('%s', ', '.join(['%s']*(len(discounted_records)+1))),
+			tuple([dt, ''] + discounted_records))
diff --git a/erpnext/patches/v4_0/update_user_properties.py b/erpnext/patches/v4_0/update_user_properties.py
new file mode 100644
index 0000000..a5b7bfd
--- /dev/null
+++ b/erpnext/patches/v4_0/update_user_properties.py
@@ -0,0 +1,51 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+import frappe.permissions
+import frappe.defaults
+
+def execute():
+	frappe.reload_doc("core", "doctype", "docfield")
+	frappe.reload_doc("hr", "doctype", "employee")
+
+	set_print_email_permissions()
+	migrate_user_properties_to_user_permissions()
+
+	frappe.clear_cache()
+
+def migrate_user_properties_to_user_permissions():
+	for d in frappe.db.sql("""select parent, defkey, defvalue from tabDefaultValue
+		where parent not in ('__global', '__default')""", as_dict=True):
+		df = frappe.db.sql("""select options from tabDocField
+			where fieldname=%s and fieldtype='Link'""", d.defkey, as_dict=True)
+
+		if df:
+			frappe.db.sql("""update tabDefaultValue
+				set defkey=%s, parenttype='User Permission'
+				where defkey=%s and
+				parent not in ('__global', '__default')""", (df[0].options, d.defkey))
+
+def set_print_email_permissions():
+	# reset Page perms
+	from frappe.core.page.permission_manager.permission_manager import reset
+	reset("Page")
+	reset("Report")
+
+	if "allow_print" not in frappe.db.get_table_columns("DocType"):
+		return
+
+	# patch to move print, email into DocPerm
+	# NOTE: allow_print and allow_email are misnamed. They were used to hide print / hide email
+	for doctype, hide_print, hide_email in frappe.db.sql("""select name, ifnull(allow_print, 0), ifnull(allow_email, 0)
+		from `tabDocType` where ifnull(issingle, 0)=0 and ifnull(istable, 0)=0 and
+		(ifnull(allow_print, 0)=0 or ifnull(allow_email, 0)=0)"""):
+
+		if not hide_print:
+			frappe.db.sql("""update `tabDocPerm` set `print`=1
+				where permlevel=0 and `read`=1 and parent=%s""", doctype)
+
+		if not hide_email:
+			frappe.db.sql("""update `tabDocPerm` set `email`=1
+				where permlevel=0 and `read`=1 and parent=%s""", doctype)
diff --git a/erpnext/patches/v4_0/update_users_report_view_settings.py b/erpnext/patches/v4_0/update_users_report_view_settings.py
new file mode 100644
index 0000000..8883dc2
--- /dev/null
+++ b/erpnext/patches/v4_0/update_users_report_view_settings.py
@@ -0,0 +1,12 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+
+from frappe.model import update_users_report_view_settings
+from erpnext.patches.v4_0.fields_to_be_renamed import rename_map
+
+def execute():
+	for dt, field_list in rename_map.items():
+		for field in field_list:
+			update_users_report_view_settings(dt, field[0], field[1])
diff --git a/erpnext/patches/v4_0/validate_v3_patch.py b/erpnext/patches/v4_0/validate_v3_patch.py
new file mode 100644
index 0000000..21258b6
--- /dev/null
+++ b/erpnext/patches/v4_0/validate_v3_patch.py
@@ -0,0 +1,11 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	from frappe.modules.patch_handler import executed
+	last_v3_patch = 'patches.1401.fix_pos_outstanding'
+	if not executed(last_v3_patch):
+		raise Exception, "site not ready to migrate to version 4"
diff --git a/erpnext/patches/v4_1/__init__.py b/erpnext/patches/v4_1/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/patches/v4_1/__init__.py
diff --git a/erpnext/patches/v4_1/fix_delivery_and_billing_status.py b/erpnext/patches/v4_1/fix_delivery_and_billing_status.py
new file mode 100644
index 0000000..2dbc825
--- /dev/null
+++ b/erpnext/patches/v4_1/fix_delivery_and_billing_status.py
@@ -0,0 +1,12 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.db.sql("""update `tabSales Order` set delivery_status = 'Not Delivered'
+		where delivery_status = 'Delivered' and ifnull(per_delivered, 0) = 0 and ifnull(docstatus, 0) in (0, 1)""")
+
+	frappe.db.sql("""update `tabSales Order` set billing_status = 'Not Billed'
+		where billing_status = 'Billed' and ifnull(per_billed, 0) = 0 and ifnull(docstatus, 0) in (0, 1)""")
diff --git a/erpnext/patches/v4_1/fix_jv_remarks.py b/erpnext/patches/v4_1/fix_jv_remarks.py
new file mode 100644
index 0000000..3b2f342
--- /dev/null
+++ b/erpnext/patches/v4_1/fix_jv_remarks.py
@@ -0,0 +1,21 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	reference_date = guess_reference_date()
+	for name in frappe.db.sql_list("""select name from `tabJournal Voucher`
+		where date(creation)>=%s""", reference_date):
+		jv = frappe.get_doc("Journal Voucher", name)
+		try:
+			jv.create_remarks()
+		except frappe.MandatoryError:
+			pass
+		else:
+			frappe.db.set_value("Journal Voucher", jv.name, "remark", jv.remark)
+
+def guess_reference_date():
+	return (frappe.db.get_value("Patch Log", {"patch": "erpnext.patches.v4_0.validate_v3_patch"}, "creation")
+		or "2014-05-06")
diff --git a/erpnext/patches/v4_1/fix_sales_order_delivered_status.py b/erpnext/patches/v4_1/fix_sales_order_delivered_status.py
new file mode 100644
index 0000000..f66d856
--- /dev/null
+++ b/erpnext/patches/v4_1/fix_sales_order_delivered_status.py
@@ -0,0 +1,15 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	for si in frappe.db.sql_list("""select name
+		from `tabSales Invoice`
+		where ifnull(update_stock,0) = 1 and docstatus = 1 and exists(
+			select name from `tabSales Invoice Item` where parent=`tabSales Invoice`.name and
+				ifnull(so_detail, "") != "")"""):
+
+		invoice = frappe.get_doc("Sales Invoice", si)
+		invoice.update_qty()
diff --git a/erpnext/patches/v4_1/set_outgoing_email_footer.py b/erpnext/patches/v4_1/set_outgoing_email_footer.py
new file mode 100644
index 0000000..73d8d60
--- /dev/null
+++ b/erpnext/patches/v4_1/set_outgoing_email_footer.py
@@ -0,0 +1,12 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from erpnext.setup.install import default_mail_footer
+
+def execute():
+	return
+	mail_footer = frappe.db.get_default('mail_footer') or ''
+	mail_footer += default_mail_footer
+	frappe.db.set_value("Outgoing Email Settings", "Outgoing Email Settings", "footer", mail_footer)
diff --git a/erpnext/patches/v4_2/__init__.py b/erpnext/patches/v4_2/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/patches/v4_2/__init__.py
diff --git a/erpnext/patches/v4_2/add_currency_turkish_lira.py b/erpnext/patches/v4_2/add_currency_turkish_lira.py
new file mode 100644
index 0000000..d768d58
--- /dev/null
+++ b/erpnext/patches/v4_2/add_currency_turkish_lira.py
@@ -0,0 +1,11 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.geo.country_info import get_country_info
+from erpnext.setup.install import add_country_and_currency
+
+def execute():
+	country = get_country_info(country="Turkey")
+	add_country_and_currency("Turkey", country)
diff --git a/erpnext/patches/v4_2/default_website_style.py b/erpnext/patches/v4_2/default_website_style.py
new file mode 100644
index 0000000..6f375b9
--- /dev/null
+++ b/erpnext/patches/v4_2/default_website_style.py
@@ -0,0 +1,10 @@
+import frappe
+from frappe.templates.pages.style_settings import default_properties
+
+def execute():
+	frappe.reload_doc('website', 'doctype', 'style_settings')
+	style_settings = frappe.get_doc("Style Settings", "Style Settings")
+	if not style_settings.apply_style:
+		style_settings.update(default_properties)
+		style_settings.apply_style = 1
+		style_settings.save()
diff --git a/erpnext/patches/v4_2/delete_old_print_formats.py b/erpnext/patches/v4_2/delete_old_print_formats.py
new file mode 100644
index 0000000..75c3619
--- /dev/null
+++ b/erpnext/patches/v4_2/delete_old_print_formats.py
@@ -0,0 +1,23 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	old_formats = ("Sales Invoice", "Sales Invoice Spartan", "Sales Invoice Modern",
+		"Sales Invoice Classic",
+		"Sales Order Spartan", "Sales Order Modern", "Sales Order Classic",
+		"Purchase Order Spartan", "Purchase Order Modern", "Purchase Order Classic",
+		"Quotation Spartan", "Quotation Modern", "Quotation Classic",
+		"Delivery Note Spartan", "Delivery Note Modern", "Delivery Note Classic")
+
+	for fmt in old_formats:
+		# update property setter
+		for ps in frappe.db.sql_list("""select name from `tabProperty Setter`
+			where property='default_print_format' and value=%s""", fmt):
+			ps = frappe.get_doc("Property Setter", ps)
+			ps.value = "Standard"
+			ps.save(ignore_permissions = True)
+
+		frappe.delete_doc_if_exists("Print Format", fmt)
diff --git a/erpnext/patches/v4_2/fix_account_master_type.py b/erpnext/patches/v4_2/fix_account_master_type.py
new file mode 100644
index 0000000..d4603f2
--- /dev/null
+++ b/erpnext/patches/v4_2/fix_account_master_type.py
@@ -0,0 +1,12 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	for d in frappe.db.sql("""select name from `tabAccount`
+		where ifnull(master_type, '') not in ('Customer', 'Supplier', 'Employee', '') and docstatus=0"""):
+			ac = frappe.get_doc("Account", d[0])
+			ac.master_type = None
+			ac.save()
diff --git a/erpnext/patches/v4_2/fix_gl_entries_for_stock_transactions.py b/erpnext/patches/v4_2/fix_gl_entries_for_stock_transactions.py
new file mode 100644
index 0000000..a72b954
--- /dev/null
+++ b/erpnext/patches/v4_2/fix_gl_entries_for_stock_transactions.py
@@ -0,0 +1,52 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.utils import flt
+
+def execute():
+	from erpnext.utilities.repost_stock import repost
+	repost(allow_zero_rate=True, only_actual=True)
+
+	warehouse_account = frappe.db.sql("""select name, master_name from tabAccount
+		where ifnull(account_type, '') = 'Warehouse'""")
+	if warehouse_account:
+		warehouses = [d[1] for d in warehouse_account]
+		accounts = [d[0] for d in warehouse_account]
+
+		stock_vouchers = frappe.db.sql("""select distinct sle.voucher_type, sle.voucher_no
+			from `tabStock Ledger Entry` sle
+			where sle.warehouse in (%s)
+			order by sle.posting_date""" %
+			', '.join(['%s']*len(warehouses)), tuple(warehouses))
+
+		rejected = []
+		for voucher_type, voucher_no in stock_vouchers:
+			stock_bal = frappe.db.sql("""select sum(stock_value_difference) from `tabStock Ledger Entry`
+				where voucher_type=%s and voucher_no =%s and warehouse in (%s)""" %
+				('%s', '%s', ', '.join(['%s']*len(warehouses))), tuple([voucher_type, voucher_no] + warehouses))
+
+			account_bal = frappe.db.sql("""select ifnull(sum(ifnull(debit, 0) - ifnull(credit, 0)), 0)
+				from `tabGL Entry`
+				where voucher_type=%s and voucher_no =%s and account in (%s)
+				group by voucher_type, voucher_no""" %
+				('%s', '%s', ', '.join(['%s']*len(accounts))), tuple([voucher_type, voucher_no] + accounts))
+
+			if stock_bal and account_bal and abs(flt(stock_bal[0][0]) - flt(account_bal[0][0])) > 0.1:
+				try:
+					print voucher_type, voucher_no, stock_bal[0][0], account_bal[0][0]
+
+					frappe.db.sql("""delete from `tabGL Entry`
+						where voucher_type=%s and voucher_no=%s""", (voucher_type, voucher_no))
+
+					voucher = frappe.get_doc(voucher_type, voucher_no)
+					voucher.make_gl_entries(repost_future_gle=False)
+					frappe.db.commit()
+				except Exception, e:
+					print frappe.get_traceback()
+					rejected.append([voucher_type, voucher_no])
+					frappe.db.rollback()
+
+		print "Failed to repost: "
+		print rejected
diff --git a/erpnext/patches/v4_2/party_model.py b/erpnext/patches/v4_2/party_model.py
new file mode 100644
index 0000000..7bcb6ce
--- /dev/null
+++ b/erpnext/patches/v4_2/party_model.py
@@ -0,0 +1,97 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("accounts", "doctype", "account")
+	frappe.reload_doc("setup", "doctype", "company")
+	frappe.reload_doc("accounts", "doctype", "journal_voucher_detail")
+	frappe.reload_doc("accounts", "doctype", "gl_entry")
+	receivable_payable_accounts = create_receivable_payable_account()
+	if receivable_payable_accounts:
+		set_party_in_jv_and_gl_entry(receivable_payable_accounts)
+		delete_individual_party_account()
+		remove_customer_supplier_account_report()
+
+
+def link_warehouse_account():
+	frappe.db.sql("""update tabAccount set warehouse=master_name
+		where ifnull(account_type, '') = 'Warehouse' and ifnull(master_name, '') != ''""")
+
+def create_receivable_payable_account():
+	receivable_payable_accounts = frappe._dict()
+
+	def _create_account(args):
+		account = frappe.new_doc("Account")
+		account.group_or_ledger = "Ledger"
+		account.update(args)
+		account.insert()
+
+		frappe.db.set_value("Company", args["company"], ("default_receivable_account"
+			if args["account_type"]=="Receivable" else "default_payable_account"), account.name)
+
+		receivable_payable_accounts.setdefault(args["company"], {}).setdefault(args["account_type"], account.name)
+
+	for company in frappe.db.sql_list("select name from tabCompany"):
+		_create_account({
+				"account_name": "Debtors",
+				"account_type": "Receivable",
+				"company": company,
+				"parent_account": get_parent_account(company, "Customer")
+			})
+
+		_create_account({
+			"account_name": "Creditors",
+			"account_type": "Payable",
+			"company": company,
+			"parent_account": get_parent_account(company, "Supplier")
+		})
+
+	return receivable_payable_accounts
+
+def get_parent_account(company, master_type):
+	parent_account = frappe.db.get_value("Company", company,
+		"receivables_group" if master_type=="Customer" else "payables_group")
+	if not parent_account:
+		parent_account = frappe.db.get_value("Account", {"company": company,
+			"account_name": "Accounts Receivable" if master_type=="Customer" else "Accounts Payable"})
+
+	if not parent_account:
+		parent_account = frappe.db.sql_list("""select parent_account from tabAccount
+			where company=%s and ifnull(master_type, '')=%s and ifnull(master_name, '')!='' limit 1""",
+			(company, master_type))
+		parent_account = parent_account[0][0] if parent_account else None
+
+	return parent_account
+
+def set_party_in_jv_and_gl_entry(receivable_payable_accounts):
+	accounts = frappe.db.sql("""select name, master_type, master_name, company from `tabAccount`
+		where ifnull(master_type, '') in ('Customer', 'Supplier') and ifnull(master_name, '') != ''""", as_dict=1)
+
+	account_map = frappe._dict()
+	for d in accounts:
+		account_map.setdefault(d.name, d)
+
+	if not account_map:
+		return
+
+	for dt in ["Journal Voucher Detail", "GL Entry"]:
+		records = frappe.db.sql("""select name, account from `tab%s` where account in (%s)""" %
+			(dt, ", ".join(['%s']*len(account_map))), tuple(account_map.keys()), as_dict=1)
+		for d in records:
+			account_details = account_map.get(d.account, {})
+			account_type = "Receivable" if account_details.get("master_type")=="Customer" else "Payable"
+			new_account = receivable_payable_accounts[account_details.get("company")][account_type]
+
+			frappe.db.sql("update `tab{0}` set account=%s, party_type=%s, party=%s where name=%s".format(dt),
+				(new_account, account_details.get("master_type"), account_details.get("master_name"), d.name))
+
+def delete_individual_party_account():
+	frappe.db.sql("""delete from `tabAccount` where ifnull(master_type, '') in ('Customer', 'Supplier')
+		and ifnull(master_name, '') != ''""")
+
+def remove_customer_supplier_account_report():
+	for d in ["Customer Account Head", "Supplier Account Head"]:
+		frappe.delete_doc("Report", d)
diff --git a/erpnext/patches/v4_2/recalculate_bom_cost.py b/erpnext/patches/v4_2/recalculate_bom_cost.py
new file mode 100644
index 0000000..3a194ff
--- /dev/null
+++ b/erpnext/patches/v4_2/recalculate_bom_cost.py
@@ -0,0 +1,16 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	for d in frappe.db.sql("select name from `tabBOM` where docstatus < 2"):
+		try:	
+			document = frappe.get_doc('BOM', d[0])
+			if document.docstatus == 1:
+				document.ignore_validate_update_after_submit = True
+				document.calculate_cost()
+			document.save()
+		except:
+			pass
\ No newline at end of file
diff --git a/erpnext/patches/v4_2/repost_stock_reconciliation.py b/erpnext/patches/v4_2/repost_stock_reconciliation.py
new file mode 100644
index 0000000..73cb36d
--- /dev/null
+++ b/erpnext/patches/v4_2/repost_stock_reconciliation.py
@@ -0,0 +1,31 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+import json
+
+def execute():
+	existing_allow_negative_stock = frappe.db.get_value("Stock Settings", None, "allow_negative_stock")
+	frappe.db.set_value("Stock Settings", None, "allow_negative_stock", 1)
+
+	head_row = ["Item Code", "Warehouse", "Quantity", "Valuation Rate"]
+	stock_reco_to_be_reposted = []
+	for d in frappe.db.sql("""select name, reconciliation_json from `tabStock Reconciliation`
+		where docstatus=1 and creation > '2014-03-01'""", as_dict=1):
+			data = json.loads(d.reconciliation_json)
+			for row in data[data.index(head_row)+1:]:
+				if row[3] in ["", None]:
+					stock_reco_to_be_reposted.append(d.name)
+					break
+
+	for dn in stock_reco_to_be_reposted:
+		reco = frappe.get_doc("Stock Reconciliation", dn)
+		reco.docstatus = 2
+		reco.on_cancel()
+
+		reco.docstatus = 1
+		reco.validate()
+		reco.on_submit()
+
+	frappe.db.set_value("Stock Settings", None, "allow_negative_stock", existing_allow_negative_stock)
diff --git a/erpnext/patches/v4_2/seprate_manufacture_and_repack.py b/erpnext/patches/v4_2/seprate_manufacture_and_repack.py
new file mode 100644
index 0000000..5b36289
--- /dev/null
+++ b/erpnext/patches/v4_2/seprate_manufacture_and_repack.py
@@ -0,0 +1,9 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.db.sql("""update `tabStock Entry` set purpose='Manufacture' where purpose='Manufacture/Repack' and ifnull(production_order,"")!="" """)
+	frappe.db.sql("""update `tabStock Entry` set purpose='Repack' where purpose='Manufacture/Repack' and ifnull(production_order,"")="" """)
\ No newline at end of file
diff --git a/erpnext/patches/v4_2/set_company_country.py b/erpnext/patches/v4_2/set_company_country.py
new file mode 100644
index 0000000..6992f02
--- /dev/null
+++ b/erpnext/patches/v4_2/set_company_country.py
@@ -0,0 +1,15 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	country = frappe.db.get_single_value("Global Defaults", "country")
+	if not country:
+		print "Country not specified in Global Defaults"
+		return
+
+	for company in frappe.db.sql_list("""select name from `tabCompany`
+		where ifnull(country, '')=''"""):
+		frappe.db.set_value("Company", company, "country", country)
diff --git a/erpnext/patches/v4_2/toggle_rounded_total.py b/erpnext/patches/v4_2/toggle_rounded_total.py
new file mode 100644
index 0000000..aa63fdc
--- /dev/null
+++ b/erpnext/patches/v4_2/toggle_rounded_total.py
@@ -0,0 +1,9 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	global_defaults = frappe.get_doc("Global Defaults", "Global Defaults")
+	global_defaults.toggle_rounded_total()
diff --git a/erpnext/patches/v4_2/update_project_milestones.py b/erpnext/patches/v4_2/update_project_milestones.py
new file mode 100644
index 0000000..4f93eb9
--- /dev/null
+++ b/erpnext/patches/v4_2/update_project_milestones.py
@@ -0,0 +1,8 @@
+import frappe
+
+def execute():
+	for project in frappe.db.sql_list("select name from tabProject"):
+		frappe.reload_doc("projects", "doctype", "project")
+		p = frappe.get_doc("Project", project)
+		p.update_milestones_completed()
+		p.db_set("percent_milestones_completed", p.percent_milestones_completed)
diff --git a/erpnext/patches/v4_2/update_requested_and_ordered_qty.py b/erpnext/patches/v4_2/update_requested_and_ordered_qty.py
new file mode 100644
index 0000000..d6cabd8
--- /dev/null
+++ b/erpnext/patches/v4_2/update_requested_and_ordered_qty.py
@@ -0,0 +1,24 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	from erpnext.utilities.repost_stock import update_bin_qty, get_indented_qty, get_ordered_qty
+
+	count=0
+	for item_code, warehouse in frappe.db.sql("""select distinct item_code, warehouse from
+		(select item_code, warehouse from tabBin
+		union
+		select item_code, warehouse from `tabStock Ledger Entry`) a"""):
+			try:
+				count += 1
+				update_bin_qty(item_code, warehouse, {
+					"indented_qty": get_indented_qty(item_code, warehouse),
+					"ordered_qty": get_ordered_qty(item_code, warehouse)
+				})
+				if count % 200 == 0:
+					frappe.db.commit()
+			except:
+				frappe.db.rollback()
diff --git a/erpnext/patches/v4_2/update_sales_order_invoice_field_name.py b/erpnext/patches/v4_2/update_sales_order_invoice_field_name.py
new file mode 100644
index 0000000..a8303a0
--- /dev/null
+++ b/erpnext/patches/v4_2/update_sales_order_invoice_field_name.py
@@ -0,0 +1,6 @@
+import frappe
+
+def execute():
+	frappe.reload_doc('accounts', 'doctype', 'sales_invoice')
+	frappe.db.sql("""update `tabSales Invoice` set from_date = invoice_period_from_date,
+		to_date = invoice_period_to_date, is_recurring = convert_into_recurring_invoice""")