diff --git a/frappe/patches/v4_0/__init__.py b/frappe/patches/v4_0/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/frappe/patches/v4_0/add_delete_permission.py b/frappe/patches/v4_0/add_delete_permission.py
new file mode 100644
index 0000000000..7811217d97
--- /dev/null
+++ b/frappe/patches/v4_0/add_delete_permission.py
@@ -0,0 +1,12 @@
+import frappe
+
+def execute():
+	frappe.reload_doc("core", "doctype", "docperm")
+	
+	# delete same as cancel (map old permissions)
+	frappe.db.sql("""update tabDocPerm set `delete`=ifnull(`cancel`,0)""")
+	
+	# can't cancel if can't submit
+	frappe.db.sql("""update tabDocPerm set `cancel`=0 where ifnull(`submit`,0)=0""")
+	
+	frappe.clear_cache()
\ No newline at end of file
diff --git a/frappe/patches/v4_0/change_varchar_length.py b/frappe/patches/v4_0/change_varchar_length.py
new file mode 100644
index 0000000000..d9da8221e9
--- /dev/null
+++ b/frappe/patches/v4_0/change_varchar_length.py
@@ -0,0 +1,23 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	for dt in frappe.db.sql_list("""select name from `tabDocType` where ifnull(issingle, 0)=0"""):
+		desc = dict((d["Field"], d) for d in frappe.db.sql("desc `tab{}`".format(dt), as_dict=True))
+		alter_table = []
+
+		if desc["name"]["Type"] != "varchar(255)":
+			alter_table.append("change `name` `name` varchar(255) not null")
+
+		for fieldname in ("modified_by", "owner", "parent", "parentfield", "parenttype"):
+			if desc[fieldname]["Type"] != "varchar(255)":
+				alter_table.append("change `{fieldname}` `{fieldname}` varchar(255)".format(fieldname=fieldname))
+
+		if alter_table:
+			alter_table_query = "alter table `tab{doctype}` {alter_table}".format(doctype=dt, alter_table=",\n".join(alter_table))
+			# print alter_table_query
+			frappe.db.sql_ddl(alter_table_query)
+
diff --git a/frappe/patches/v4_0/create_custom_field_for_owner_match.py b/frappe/patches/v4_0/create_custom_field_for_owner_match.py
new file mode 100644
index 0000000000..2ac51c18ef
--- /dev/null
+++ b/frappe/patches/v4_0/create_custom_field_for_owner_match.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 frappe.core.doctype.custom_field.custom_field import create_custom_field
+
+def execute():
+	if "match" in frappe.db.get_table_columns("DocPerm"):
+		create_custom_field_for_owner_match()
+
+def create_custom_field_for_owner_match():
+	frappe.db.sql("""update `tabDocPerm` set apply_user_permissions=1 where `match`='owner'""")
+
+	for dt in frappe.db.sql_list("""select distinct parent from `tabDocPerm`
+		where `match`='owner' and permlevel=0 and parent != 'User'"""):
+
+		# a link field pointing to User already exists
+		if (frappe.db.get_value("DocField", {"parent": dt, "fieldtype": "Link", "options": "User", "default": "__user"})
+			or frappe.db.get_value("Custom Field", {"dt": dt, "fieldtype": "Link", "options": "User", "default": "__user"})):
+			print "User link field already exists for", dt
+			continue
+
+		fieldname = "{}_owner".format(frappe.scrub(dt))
+
+		create_custom_field(dt, frappe._dict({
+			"permlevel": 0,
+			"label": "{} Owner".format(dt),
+			"fieldname": fieldname,
+			"fieldtype": "Link",
+			"options": "User",
+			"default": "__user"
+		}))
+
+		frappe.db.sql("""update `tab{doctype}` set `{fieldname}`=owner""".format(doctype=dt,
+			fieldname=fieldname))
+
+		# commit is required so that we don't lose these changes because of an error in next loop's ddl
+		frappe.db.commit()
diff --git a/frappe/patches/v4_0/deprecate_control_panel.py b/frappe/patches/v4_0/deprecate_control_panel.py
new file mode 100644
index 0000000000..7bccf4bf2b
--- /dev/null
+++ b/frappe/patches/v4_0/deprecate_control_panel.py
@@ -0,0 +1,10 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.db.sql("update `tabDefaultValue` set parenttype='__default' where parenttype='Control Panel'")
+	frappe.db.sql("update `tabDefaultValue` set parent='__default' where parent='Control Panel'")
+	frappe.clear_cache()
diff --git a/frappe/patches/v4_0/deprecate_link_selects.py b/frappe/patches/v4_0/deprecate_link_selects.py
new file mode 100644
index 0000000000..317333b019
--- /dev/null
+++ b/frappe/patches/v4_0/deprecate_link_selects.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
+
+def execute():
+	for name in frappe.db.sql_list("""select name from `tabCustom Field`
+		where fieldtype="Select" and options like "link:%" """):
+		custom_field = frappe.get_doc("Custom Field", name)
+		custom_field.fieldtype = "Link"
+		custom_field.options = custom_field.options[5:]
+		custom_field.save()
diff --git a/frappe/patches/v4_0/enable_scheduler_in_system_settings.py b/frappe/patches/v4_0/enable_scheduler_in_system_settings.py
new file mode 100644
index 0000000000..bc2f167ece
--- /dev/null
+++ b/frappe/patches/v4_0/enable_scheduler_in_system_settings.py
@@ -0,0 +1,14 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.utils.scheduler import disable_scheduler, enable_scheduler
+from frappe.utils import cint
+
+def execute():
+	frappe.reload_doc("core", "doctype", "system_settings")
+	if cint(frappe.db.get_global("disable_scheduler")):
+		disable_scheduler()
+	else:
+		enable_scheduler()
diff --git a/frappe/patches/v4_0/file_manager_hooks.py b/frappe/patches/v4_0/file_manager_hooks.py
new file mode 100644
index 0000000000..ef043d4d31
--- /dev/null
+++ b/frappe/patches/v4_0/file_manager_hooks.py
@@ -0,0 +1,36 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+
+import frappe
+import os
+from frappe.utils import get_files_path
+from frappe.utils.file_manager import get_content_hash, get_file
+
+
+def execute():
+	frappe.reload_doc('core', 'doctype', 'file_data')
+	for name, file_name, file_url in frappe.db.sql(
+			"""select name, file_name, file_url from `tabFile Data`
+			where file_name is not null"""):
+		b = frappe.get_doc('File Data', name)
+		old_file_name = b.file_name
+		b.file_name = os.path.basename(old_file_name)
+		if old_file_name.startswith('files/') or old_file_name.startswith('/files/'):
+			b.file_url = os.path.normpath('/' + old_file_name)
+		else:
+			b.file_url = os.path.normpath('/files/' + old_file_name)
+		try:
+			_file_name, content = get_file(name)
+			b.content_hash = get_content_hash(content)
+		except IOError:
+			print 'Warning: Error processing ', name
+			_file_name = old_file_name
+			b.content_hash = None
+
+		try:
+			b.save()
+		except frappe.DuplicateEntryError:
+			frappe.delete_doc(b.doctype, b.name)
+
diff --git a/frappe/patches/v4_0/fix_attach_field_file_url.py b/frappe/patches/v4_0/fix_attach_field_file_url.py
new file mode 100644
index 0000000000..3c5a6aa03c
--- /dev/null
+++ b/frappe/patches/v4_0/fix_attach_field_file_url.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
+
+def execute():
+	attach_fields = (frappe.db.sql("""select parent, fieldname from `tabDocField` where fieldtype='Attach'""") +
+		frappe.db.sql("""select dt, fieldname from `tabCustom Field` where fieldtype='Attach'"""))
+
+	for doctype, fieldname in attach_fields:
+		frappe.db.sql("""update `tab{doctype}` set `{fieldname}`=concat("/", `{fieldname}`)
+			where `{fieldname}` like 'files/%'""".format(doctype=doctype, fieldname=fieldname))
diff --git a/frappe/patches/v4_0/private_backups.py b/frappe/patches/v4_0/private_backups.py
new file mode 100644
index 0000000000..f82209c31e
--- /dev/null
+++ b/frappe/patches/v4_0/private_backups.py
@@ -0,0 +1,11 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.installer import make_site_dirs
+
+def execute():
+	make_site_dirs()
+	if frappe.local.conf.backup_path and frappe.local.conf.backup_path.startswith("public"):
+		raise Exception, "Backups path in conf set to public directory"
diff --git a/frappe/patches/v4_0/remove_index_sitemap.py b/frappe/patches/v4_0/remove_index_sitemap.py
new file mode 100644
index 0000000000..00d37eaf2e
--- /dev/null
+++ b/frappe/patches/v4_0/remove_index_sitemap.py
@@ -0,0 +1,4 @@
+import frappe
+
+def execute():
+	pass
diff --git a/frappe/patches/v4_0/remove_old_parent.py b/frappe/patches/v4_0/remove_old_parent.py
new file mode 100644
index 0000000000..588cda9121
--- /dev/null
+++ b/frappe/patches/v4_0/remove_old_parent.py
@@ -0,0 +1,10 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	for doctype in frappe.db.sql_list("""select name from `tabDocType` where istable=1"""):
+		frappe.db.sql("""delete from `tab{0}` where parent like "old_par%:%" """.format(doctype))
+	frappe.db.sql("""delete from `tabDocField` where parent="0" """)
diff --git a/frappe/patches/v4_0/remove_user_owner_custom_field.py b/frappe/patches/v4_0/remove_user_owner_custom_field.py
new file mode 100644
index 0000000000..4f3e478f98
--- /dev/null
+++ b/frappe/patches/v4_0/remove_user_owner_custom_field.py
@@ -0,0 +1,10 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	user_owner = frappe.db.get_value("Custom Field", {"fieldname": "user_owner"})
+	if user_owner:
+		frappe.delete_doc("Custom Field", user_owner)
diff --git a/frappe/patches/v4_0/rename_profile_to_user.py b/frappe/patches/v4_0/rename_profile_to_user.py
new file mode 100644
index 0000000000..c7165961e7
--- /dev/null
+++ b/frappe/patches/v4_0/rename_profile_to_user.py
@@ -0,0 +1,14 @@
+import frappe
+
+from frappe.model import rename_field
+from frappe.model.meta import get_table_columns
+
+def execute():
+	tables = frappe.db.sql_list("show tables")
+	if "tabUser" not in tables:
+		frappe.rename_doc("DocType", "Profile", "User", force=True)
+
+	frappe.reload_doc("website", "doctype", "blogger")
+
+	if "profile" in get_table_columns("Blogger"):
+		rename_field("Blogger", "profile", "user")
diff --git a/frappe/patches/v4_0/rename_sitemap_to_route.py b/frappe/patches/v4_0/rename_sitemap_to_route.py
new file mode 100644
index 0000000000..9c7114fcb9
--- /dev/null
+++ b/frappe/patches/v4_0/rename_sitemap_to_route.py
@@ -0,0 +1,24 @@
+import frappe
+
+from frappe.model import rename_field
+
+def execute():
+	tables = frappe.db.sql_list("show tables")
+	for doctype in ("Website Sitemap", "Website Sitemap Config"):
+		if "tab{}".format(doctype) in tables:
+			frappe.delete_doc("DocType", doctype, force=1)
+			frappe.db.sql("drop table `tab{}`".format(doctype))
+
+	for d in ("Blog Category", "Blog Post", "Web Page"):
+		frappe.reload_doc("website", "doctype", frappe.scrub(d))
+		rename_field_if_exists(d, "parent_website_sitemap", "parent_website_route")
+
+	for d in ("blog_category", "blog_post", "web_page", "post", "user_vote"):
+		frappe.reload_doc("website", "doctype", d)
+
+def rename_field_if_exists(doctype, old_fieldname, new_fieldname):
+	try:
+		rename_field(doctype, old_fieldname, new_fieldname)
+	except Exception, e:
+		if e.args[0] != 1054:
+			raise
diff --git a/frappe/patches/v4_0/replace_deprecated_timezones.py b/frappe/patches/v4_0/replace_deprecated_timezones.py
new file mode 100644
index 0000000000..4574dc19f8
--- /dev/null
+++ b/frappe/patches/v4_0/replace_deprecated_timezones.py
@@ -0,0 +1,21 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.utils.momentjs import data as momentjs_data
+
+def execute():
+	frappe.reload_doc("core", "doctype", "user")
+
+	ss = frappe.get_doc("System Settings", "System Settings")
+	if ss.time_zone in momentjs_data.get("links"):
+		ss.time_zone = momentjs_data["links"][ss.time_zone]
+		ss.ignore_mandatory = True
+		ss.save()
+
+	for user, time_zone in frappe.db.sql("select name, time_zone from `tabUser` where ifnull(time_zone, '')!=''"):
+		if time_zone in momentjs_data.get("links"):
+			user = frappe.get_doc("User", user)
+			user.time_zone = momentjs_data["links"][user.time_zone]
+			user.save()
diff --git a/frappe/patches/v4_0/set_module_in_report.py b/frappe/patches/v4_0/set_module_in_report.py
new file mode 100644
index 0000000000..107d868eba
--- /dev/null
+++ b/frappe/patches/v4_0/set_module_in_report.py
@@ -0,0 +1,10 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("core", "doctype", "report")
+	frappe.db.sql("""update `tabReport` r set r.module=(select d.module from `tabDocType` d
+		where d.name=r.ref_doctype) where ifnull(r.module, '')=''""")
\ No newline at end of file
diff --git a/frappe/patches/v4_0/set_todo_checked_as_closed.py b/frappe/patches/v4_0/set_todo_checked_as_closed.py
new file mode 100644
index 0000000000..cc4b87a0bc
--- /dev/null
+++ b/frappe/patches/v4_0/set_todo_checked_as_closed.py
@@ -0,0 +1,8 @@
+import frappe
+
+def execute():
+	frappe.reload_doc("core", "doctype", "todo")
+	try:
+		frappe.db.sql("""update tabToDo set status = if(ifnull(checked,0)=0, 'Open', 'Closed')""")
+	except:
+		pass
diff --git a/frappe/patches/v4_0/set_user_gravatar.py b/frappe/patches/v4_0/set_user_gravatar.py
new file mode 100644
index 0000000000..78bd72f4dc
--- /dev/null
+++ b/frappe/patches/v4_0/set_user_gravatar.py
@@ -0,0 +1,11 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	for name in frappe.db.sql_list("select name from `tabUser` where ifnull(user_image, '')=''"):
+		user = frappe.get_doc("User", name)
+		user.update_gravatar()
+		user.db_set("user_image", user.user_image)
diff --git a/frappe/patches/v4_0/set_user_permissions.py b/frappe/patches/v4_0/set_user_permissions.py
new file mode 100644
index 0000000000..b25f68c09c
--- /dev/null
+++ b/frappe/patches/v4_0/set_user_permissions.py
@@ -0,0 +1,24 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+import frappe.permissions
+
+def execute():
+	frappe.reload_doc("core", "doctype", "docperm")
+	table_columns = frappe.db.get_table_columns("DocPerm")
+
+	if "restricted" in table_columns:
+		frappe.db.sql("""update `tabDocPerm` set apply_user_permissions=1 where ifnull(apply_user_permissions, 0)=0
+			and restricted=1""")
+
+	if "match" in table_columns:
+		frappe.db.sql("""update `tabDocPerm` set apply_user_permissions=1
+			where ifnull(apply_user_permissions, 0)=0 and ifnull(`match`, '')!=''""")
+
+	# change Restriction to User Permission in tabDefaultValue
+	frappe.db.sql("""update `tabDefaultValue` set parenttype='User Permission' where parenttype='Restriction'""")
+
+	frappe.clear_cache()
+
diff --git a/frappe/patches/v4_0/set_website_route_idx.py b/frappe/patches/v4_0/set_website_route_idx.py
new file mode 100644
index 0000000000..82f64756a4
--- /dev/null
+++ b/frappe/patches/v4_0/set_website_route_idx.py
@@ -0,0 +1,24 @@
+import frappe
+
+def execute():
+	pass
+	# from frappe.website.doctype.website_template.website_template import \
+	# 	get_pages_and_generators, get_template_controller
+	#
+	# frappe.reload_doc("website", "doctype", "website_template")
+	# frappe.reload_doc("website", "doctype", "website_route")
+	#
+	# for app in frappe.get_installed_apps():
+	# 	pages, generators = get_pages_and_generators(app)
+	# 	for g in generators:
+	# 		doctype = frappe.get_attr(get_template_controller(app, g["path"], g["fname"]) + ".doctype")
+	# 		module = frappe.db.get_value("DocType", doctype, "module")
+	# 		frappe.reload_doc(frappe.scrub(module), "doctype", frappe.scrub(doctype))
+	#
+	# frappe.db.sql("""update `tabBlog Category` set `title`=`name` where ifnull(`title`, '')=''""")
+	# frappe.db.sql("""update `tabWebsite Route` set idx=null""")
+	# for doctype in ["Blog Category", "Blog Post", "Web Page", "Website Group"]:
+	# 	frappe.db.sql("""update `tab{}` set idx=null""".format(doctype))
+	#
+	# from frappe.website.doctype.website_template.website_template import rebuild_website_template
+	# rebuild_website_template()
diff --git a/frappe/patches/v4_0/update_custom_field_insert_after.py b/frappe/patches/v4_0/update_custom_field_insert_after.py
new file mode 100644
index 0000000000..0e820cd0e3
--- /dev/null
+++ b/frappe/patches/v4_0/update_custom_field_insert_after.py
@@ -0,0 +1,18 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	for d in frappe.db.sql("""select name, dt, insert_after from `tabCustom Field`
+		where docstatus < 2""", as_dict=1):
+			dt_meta = frappe.get_meta(d.dt)
+			if not dt_meta.get_field(d.insert_after):
+				cf = frappe.get_doc("Custom Field", d.name)
+				df = dt_meta.get("fields", {"label": d.insert_after})
+				if df:
+					cf.insert_after = df[0].fieldname
+				else:
+					cf.insert_after = None
+				cf.save()
diff --git a/frappe/patches/v4_0/update_datetime.py b/frappe/patches/v4_0/update_datetime.py
new file mode 100644
index 0000000000..672dd1940b
--- /dev/null
+++ b/frappe/patches/v4_0/update_datetime.py
@@ -0,0 +1,11 @@
+import frappe
+
+def execute():
+	for table in frappe.db.sql_list("show tables"):
+		for field in frappe.db.sql("desc `%s`" % table):
+			if field[1]=="datetime":
+				frappe.db.sql("alter table `%s` change `%s` `%s` datetime(6)" % \
+					 (table, field[0], field[0]))
+			elif field[1]=="time":
+				frappe.db.sql("alter table `%s` change `%s` `%s` time(6)" % \
+					 (table, field[0], field[0]))
diff --git a/frappe/patches/v4_0/webnotes_to_frappe.py b/frappe/patches/v4_0/webnotes_to_frappe.py
new file mode 100644
index 0000000000..c70b2fdbde
--- /dev/null
+++ b/frappe/patches/v4_0/webnotes_to_frappe.py
@@ -0,0 +1,11 @@
+import frappe, json
+
+def execute():
+	frappe.clear_cache()
+	installed = frappe.get_installed_apps()
+	if "webnotes" in installed:
+		installed.remove("webnotes")
+	if "frappe" not in installed:
+		installed = ["frappe"] + installed
+	frappe.db.set_global("installed_apps", json.dumps(installed))
+	frappe.clear_cache()
diff --git a/frappe/patches/v4_0/website_sitemap_hierarchy.py b/frappe/patches/v4_0/website_sitemap_hierarchy.py
new file mode 100644
index 0000000000..324b13ea4a
--- /dev/null
+++ b/frappe/patches/v4_0/website_sitemap_hierarchy.py
@@ -0,0 +1,21 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+
+import frappe
+
+def execute():
+	# frappe.db.sql("""update `tabWebsite Route` ws set ref_doctype=(select wsc.ref_doctype
+	# 	from `tabWebsite Template` wsc where wsc.name=ws.website_template)
+	# 	where ifnull(page_or_generator, '')!='Page'""")
+
+	frappe.reload_doc("website", "doctype", "website_settings")
+
+	# original_home_page = frappe.db.get_value("Website Settings", "Website Settings", "home_page")
+	#
+	# home_page = frappe.db.sql("""select name from `tabWebsite Route`
+	# 	where (name=%s or docname=%s) and name!='index'""", (original_home_page, original_home_page))
+	# home_page = home_page[0][0] if home_page else original_home_page
+	#
+	# frappe.db.set_value("Website Settings", "Website Settings", "home_page", home_page)
diff --git a/frappe/patches/v4_1/__init__.py b/frappe/patches/v4_1/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/frappe/patches/v4_1/enable_outgoing_email_settings.py b/frappe/patches/v4_1/enable_outgoing_email_settings.py
new file mode 100644
index 0000000000..472a8109e3
--- /dev/null
+++ b/frappe/patches/v4_1/enable_outgoing_email_settings.py
@@ -0,0 +1,10 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("core", "doctype", "outgoing_email_settings")
+	if (frappe.db.get_value("Outgoing Email Settings", "Outgoing Email Settings", "mail_server") or "").strip():
+		frappe.db.set_value("Outgoing Email Settings", "Outgoing Email Settings", "enabled", 1)
diff --git a/frappe/patches/v4_1/enable_print_as_pdf.py b/frappe/patches/v4_1/enable_print_as_pdf.py
new file mode 100644
index 0000000000..877a2b61f7
--- /dev/null
+++ b/frappe/patches/v4_1/enable_print_as_pdf.py
@@ -0,0 +1,26 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("core", "doctype", "print_settings")
+	print_settings = frappe.get_doc("Print Settings")
+	print_settings.print_style = "Modern"
+
+	try:
+		import pdfkit
+	except ImportError:
+		pass
+	else:
+		# if someone has already configured in Outgoing Email Settings
+		outgoing_email_settings = frappe.db.get_singles_dict("Outgoing Email Settings")
+		if "send_print_as_pdf" in outgoing_email_settings:
+			print_settings.send_print_as_pdf = outgoing_email_settings.send_print_as_pdf
+			print_settings.pdf_page_size = outgoing_email_settings.pdf_page_size
+
+		else:
+			print_settings.send_print_as_pdf = 1
+
+	print_settings.save()
diff --git a/frappe/patches/v4_1/file_manager_fix.py b/frappe/patches/v4_1/file_manager_fix.py
new file mode 100644
index 0000000000..5315284109
--- /dev/null
+++ b/frappe/patches/v4_1/file_manager_fix.py
@@ -0,0 +1,98 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+
+import frappe
+import os
+from frappe.utils.file_manager import get_content_hash, get_file, get_file_name
+from frappe.utils import get_files_path, get_site_path
+
+# The files missed by the previous patch might have been replaced with new files
+# with the same filename
+#
+# This patch does the following,
+# * Detect which files were replaced and rename them with name{hash:5}.extn and
+#   update filedata record for the new file
+#
+# * make missing_files.txt in site dir with files that should be recovered from
+#   a backup from a time before version 3 migration
+#
+# * Patch remaining unpatched file data records.
+
+def execute():
+	frappe.db.auto_commit_on_many_writes = True
+	rename_replacing_files()
+	for name, file_name, file_url in frappe.db.sql(
+			"""select name, file_name, file_url from `tabFile Data`
+			where ifnull(file_name, '')!='' and ifnull(content_hash, '')=''"""):
+		b = frappe.get_doc('File Data', name)
+		old_file_name = b.file_name
+		b.file_name = os.path.basename(old_file_name)
+		if old_file_name.startswith('files/') or old_file_name.startswith('/files/'):
+			b.file_url = os.path.normpath('/' + old_file_name)
+		else:
+			b.file_url = os.path.normpath('/files/' + old_file_name)
+		try:
+			_file_name, content = get_file(name)
+			b.content_hash = get_content_hash(content)
+		except IOError:
+			print 'Warning: Error processing ', name
+			b.content_hash = None
+		b.ignore_duplicate_entry_error = True
+		b.save()
+	frappe.db.auto_commit_on_many_writes = False
+
+def get_replaced_files():
+	ret = []
+	new_files = dict(frappe.db.sql("select name, file_name from `tabFile Data` where file_name not like 'files/%'"))
+	old_files = dict(frappe.db.sql("select name, file_name from `tabFile Data` where ifnull(content_hash, '')=''"))
+	invfiles = invert_dict(new_files)
+
+	for nname, nfilename in new_files.iteritems():
+		if 'files/' + nfilename in old_files.values():
+			ret.append((nfilename, invfiles[nfilename]))
+	return ret
+
+def rename_replacing_files():
+	replaced_files = get_replaced_files()
+	if len(replaced_files):
+		missing_files = [v[0] for v in replaced_files]
+		with open(get_site_path('missing_files.txt'), 'w') as f:
+			f.write(('\n'.join(missing_files) + '\n').encode('utf-8'))
+
+	for file_name, file_datas in replaced_files:
+		print 'processing ' + file_name
+		content_hash = frappe.db.get_value('File Data', file_datas[0], 'content_hash')
+		if not content_hash:
+			continue
+		new_file_name = get_file_name(file_name, content_hash)
+		if os.path.exists(get_files_path(new_file_name)):
+			continue
+			print 'skipping ' + file_name
+		try:
+			os.rename(get_files_path(file_name), get_files_path(new_file_name))
+		except OSError:
+			print 'Error renaming ', file_name
+		for name in file_datas:
+			f = frappe.get_doc('File Data', name)
+			f.file_name = new_file_name
+			f.file_url = '/files/' + new_file_name
+			f.save()
+
+def invert_dict(ddict):
+	ret = {}
+	for k,v in ddict.iteritems():
+		if not ret.get(v):
+			ret[v] = [k]
+		else:
+			ret[v].append(k)
+	return ret
+
+def get_file_name(fname, hash):
+		if '.' in fname:
+			partial, extn = fname.rsplit('.', 1)
+		else:
+			partial = fname
+			extn = ''
+		return '{partial}{suffix}.{extn}'.format(partial=partial, extn=extn, suffix=hash[:5])
diff --git a/frappe/patches/v4_2/__init__.py b/frappe/patches/v4_2/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/frappe/patches/v4_2/print_with_letterhead.py b/frappe/patches/v4_2/print_with_letterhead.py
new file mode 100644
index 0000000000..ad2a144d95
--- /dev/null
+++ b/frappe/patches/v4_2/print_with_letterhead.py
@@ -0,0 +1,11 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# MIT License. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("core", "doctype", "print_settings")
+	print_settings = frappe.get_doc("Print Settings")
+	print_settings.with_letterhead = 1
+	print_settings.save()
diff --git a/frappe/patches/v4_2/refactor_website_routing.py b/frappe/patches/v4_2/refactor_website_routing.py
new file mode 100644
index 0000000000..9cb39beaf0
--- /dev/null
+++ b/frappe/patches/v4_2/refactor_website_routing.py
@@ -0,0 +1,7 @@
+import frappe
+
+def execute():
+	# clear all static web pages
+	frappe.delete_doc("DocType", "Website Route", force=1)
+	frappe.delete_doc("Page", "sitemap-browser", force=1)
+	frappe.db.sql("drop table if exists `tabWebsite Route`")
diff --git a/frappe/patches/v4_2/set_assign_in_doc.py b/frappe/patches/v4_2/set_assign_in_doc.py
new file mode 100644
index 0000000000..664c997eaf
--- /dev/null
+++ b/frappe/patches/v4_2/set_assign_in_doc.py
@@ -0,0 +1,10 @@
+import frappe
+
+def execute():
+	for name in frappe.db.sql_list("""select name from `tabToDo`
+		where ifnull(reference_type, '')!='' and ifnull(reference_name, '')!=''"""):
+		try:
+			frappe.get_doc("ToDo", name).on_update()
+		except Exception, e:
+			if e.args[0]!=1146:
+				raise