diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 2a70fd788f2..e2188994d1c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -8,7 +8,7 @@ TL;DR
 * If you [make a pull request](https://github.com/odoo/odoo/wiki/Contributing#making-pull-requests),
   do not create an issue! Use the PR description for that
 * Issues are handled with a much lower priority than pull requests
-* Use this [template](https://github.com/odoo/odoo/tree/12.0/.github/ISSUE_TEMPLATE.md)
+* Use this [template](https://github.com/odoo/odoo/tree/13.0/.github/ISSUE_TEMPLATE.md)
   when reporting issues. Please search for duplicates first!
 * Pull requests must be made against the [correct version](https://github.com/odoo/odoo/wiki/Contributing#against-which-version-should-i-submit-a-patch)
 * There are restrictions on the kind of [changes allowed in stable series](https://github.com/odoo/odoo/wiki/Contributing#what-does-stable-mean)
diff --git a/SECURITY.md b/SECURITY.md
index 98eb36db26e..d45887b1843 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -4,10 +4,10 @@
 
 | Version | Supported          |
 | ------- | ------------------ |
+| 13.0    | :white_check_mark: |
 | 12.0    | :white_check_mark: |
 | 11.0    | :white_check_mark: |
-| 10.0    | :white_check_mark: |
-| <=9.0   | :x:                |
+| <=10.0  | :x:                |
 
 ## Reporting a Vulnerability
 
diff --git a/addons/base_import/static/src/xml/base_import.xml b/addons/base_import/static/src/xml/base_import.xml
index aa0e956f9fd..edd53600d2b 100644
--- a/addons/base_import/static/src/xml/base_import.xml
+++ b/addons/base_import/static/src/xml/base_import.xml
@@ -99,7 +99,7 @@
                             <i class="fa fa-download"/> <span><t t-esc="template.label"/></span>
                         </a>
                     </div>
-                    <a href="https://www.odoo.com/documentation/user/12.0/general/base_import/import_faq.html" target="new">Import FAQ</a>
+                    <a href="https://www.odoo.com/documentation/user/13.0/general/base_import/import_faq.html" target="new">Import FAQ</a>
                 </div>
             </div>
         </form>
diff --git a/addons/google_calendar/views/res_config_settings_views.xml b/addons/google_calendar/views/res_config_settings_views.xml
index 5028978dd4c..a1f3f2b20a9 100644
--- a/addons/google_calendar/views/res_config_settings_views.xml
+++ b/addons/google_calendar/views/res_config_settings_views.xml
@@ -13,7 +13,7 @@
                             <label for="cal_client_secret" string="Client Secret" class="col-3 col-lg-3 o_light_label"/>
                             <field name="cal_client_secret" password="True" nolabel="1"/>
                         </div>
-                        <a href="https://www.odoo.com/documentation/user/12.0/crm/optimize/google_calendar_credentials.html" class="oe-link" target="_blank"><i class="fa fa-fw fa-arrow-right"/>Tutorial</a>
+                        <a href="https://www.odoo.com/documentation/user/13.0/crm/optimize/google_calendar_credentials.html" class="oe-link" target="_blank"><i class="fa fa-fw fa-arrow-right"/>Tutorial</a>
                     </div>
                 </div>
             </field>
diff --git a/addons/hw_posbox_homepage/views/layout.html b/addons/hw_posbox_homepage/views/layout.html
index d0c1116a227..342c1f08334 100644
--- a/addons/hw_posbox_homepage/views/layout.html
+++ b/addons/hw_posbox_homepage/views/layout.html
@@ -137,7 +137,7 @@
         </div>
         <div class="footer">
             <a href='https://www.odoo.com/help'>Help</a>
-            <a href='https://www.odoo.com/documentation/user/12.0/iot.html'>Documentation</a>
+            <a href='https://www.odoo.com/documentation/user/13.0/iot.html'>Documentation</a>
         </div>
     </body>
 </html>
diff --git a/addons/hw_posbox_upgrade/views/layout.html b/addons/hw_posbox_upgrade/views/layout.html
index 9d9683d7ba8..ad0beae142e 100644
--- a/addons/hw_posbox_upgrade/views/layout.html
+++ b/addons/hw_posbox_upgrade/views/layout.html
@@ -132,7 +132,7 @@
         </div>
         <div class="footer">
             <a href='https://www.odoo.com/help'>Help</a>
-            <a href='https://www.odoo.com/documentation/user/12.0/iot.html'>Documentation</a>
+            <a href='https://www.odoo.com/documentation/user/13.0/iot.html'>Documentation</a>
         </div>
     </body>
 </html>
diff --git a/addons/hw_posbox_upgrade/views/upgrade_page.html b/addons/hw_posbox_upgrade/views/upgrade_page.html
index 895746c2926..959d798cfbe 100644
--- a/addons/hw_posbox_upgrade/views/upgrade_page.html
+++ b/addons/hw_posbox_upgrade/views/upgrade_page.html
@@ -54,7 +54,7 @@
         However the preferred method to upgrade the IoTBox is to flash the sd-card with
         the <a href='http://nightly.odoo.com/master/posbox/iotbox/iotbox-latest.zip'>latest image</a>. The upgrade
         procedure is explained into to the
-        <a href='https://www.odoo.com/documentation/user/12.0/iot.html'>IoTBox manual</a>
+        <a href='https://www.odoo.com/documentation/user/13.0/iot.html'>IoTBox manual</a>
     </p>
     <p>
         To upgrade the IoTBox, click on the upgrade button. The upgrade will take a few minutes. <b>Do not reboot</b> the IoTBox during the upgrade.
diff --git a/addons/payment/views/payment_acquirer_onboarding_templates.xml b/addons/payment/views/payment_acquirer_onboarding_templates.xml
index f00c6cfb636..a9d201a585f 100644
--- a/addons/payment/views/payment_acquirer_onboarding_templates.xml
+++ b/addons/payment/views/payment_acquirer_onboarding_templates.xml
@@ -45,7 +45,7 @@
                                     <span>Start selling directly without an account; an email will be sent by Paypal to create your new account and collect your payments.</span>
                                 </p>
                                 <p attrs="{'invisible': [('paypal_user_type', '=', 'new_user')]}">
-                                    <a href="https://www.odoo.com/documentation/user/12.0/ecommerce/shopper_experience/paypal.html" target="_blank">
+                                    <a href="https://www.odoo.com/documentation/user/13.0/ecommerce/shopper_experience/paypal.html" target="_blank">
                                         <span class="fa fa-arrow-right"> How to configure your PayPal account</span>
                                     </a>
                                 </p>
diff --git a/addons/point_of_sale/views/pos_config_view.xml b/addons/point_of_sale/views/pos_config_view.xml
index e89869af254..6b23c2dbd2d 100644
--- a/addons/point_of_sale/views/pos_config_view.xml
+++ b/addons/point_of_sale/views/pos_config_view.xml
@@ -288,7 +288,7 @@
                                     <div class="mt16">
                                         <field name="iface_tax_included" class="o_light_label" widget="radio"/>
                                     </div>
-                                    <a attrs="{'invisible': [('iface_tax_included', '!=', 'total')]}" href="https://www.odoo.com/documentation/user/12.0/accounting/others/taxes/tax_included.html"  target="_blank" class="oe-link"><i class="fa fa-fw fa-arrow-right"/>How to manage tax-included prices</a>
+                                    <a attrs="{'invisible': [('iface_tax_included', '!=', 'total')]}" href="https://www.odoo.com/documentation/user/13.0/accounting/others/taxes/tax_included.html"  target="_blank" class="oe-link"><i class="fa fa-fw fa-arrow-right"/>How to manage tax-included prices</a>
                                 </div>
                             </div>
                         </div>
diff --git a/addons/website/views/res_config_settings_views.xml b/addons/website/views/res_config_settings_views.xml
index fe1592bc35b..a292b193c9b 100644
--- a/addons/website/views/res_config_settings_views.xml
+++ b/addons/website/views/res_config_settings_views.xml
@@ -158,7 +158,7 @@
                                         </div>
                                     </div>
                                     <div attrs="{'invisible': [('has_google_analytics', '=', False)]}">
-                                        <a href="https://www.odoo.com/documentation/user/12.0/website/optimize/google_analytics.html"
+                                        <a href="https://www.odoo.com/documentation/user/13.0/website/optimize/google_analytics.html"
                                                 class="oe_link" target="_blank">
                                             <i class="fa fa-arrow-right"/>
                                             How to get my Tracking ID
diff --git a/doc/_extensions/odoo_ext/sub-menu_list.html b/doc/_extensions/odoo_ext/sub-menu_list.html
index ba1a2ad9542..179c57bd455 100644
--- a/doc/_extensions/odoo_ext/sub-menu_list.html
+++ b/doc/_extensions/odoo_ext/sub-menu_list.html
@@ -1,8 +1,8 @@
 {# note: if odoo.com/page/docs sub-menu's structure change, these links have to change as well #}
 
-<li><a href="https://www.odoo.com/documentation/user/12.0/index.html">User</a></li>
-<li><a href="https://www.odoo.com/documentation/12.0/index.html">Developer</a></li>
-<li><a href="https://www.odoo.com/documentation/12.0/setup/install.html">Installation</a></li>
+<li><a href="https://www.odoo.com/documentation/user/13.0/index.html">User</a></li>
+<li><a href="https://www.odoo.com/documentation/13.0/index.html">Developer</a></li>
+<li><a href="https://www.odoo.com/documentation/13.0/setup/install.html">Installation</a></li>
 <li><a href="https://odoo.com/slides">eLearning</a></li>
 <li><a href="https://www.odoo.com/page/odoo-white-paper">White Papers</a></li>
 <li><a href="https://www.odoo.com/page/legal">Legal</a></li>
diff --git a/doc/conf.py b/doc/conf.py
index 3c50d394318..ebee78ccbf6 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -54,9 +54,9 @@ copyright = u'Odoo S.A.'
 # built documents.
 #
 # The short X.Y version.
-version = '12.0'
+version = '13.0'
 # The full version, including alpha/beta/rc tags.
-release = '12.0'
+release = '13.0'
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
diff --git a/doc/howtos/backend/exercise-creation b/doc/howtos/backend/exercise-creation
index b5cf555845f..52de611b686 100644
--- a/doc/howtos/backend/exercise-creation
+++ b/doc/howtos/backend/exercise-creation
@@ -22,7 +22,7 @@ Index: addons/openacademy/__manifest__.py
 +    'website': "http://www.yourcompany.com",
 +
 +    # Categories can be used to filter modules in modules listing
-+    # Check https://github.com/odoo/odoo/blob/12.0/odoo/addons/base/data/ir_module_category_data.xml
++    # Check https://github.com/odoo/odoo/blob/13.0/odoo/addons/base/data/ir_module_category_data.xml
 +    # for the full list
 +    'category': 'Test',
 +    'version': '0.1',
diff --git a/doc/howtos/website/module-empty b/doc/howtos/website/module-empty
index db169c753aa..2632ab2e1fb 100644
--- a/doc/howtos/website/module-empty
+++ b/doc/howtos/website/module-empty
@@ -31,7 +31,7 @@ new file mode 100644
 +    'website': "https://www.yourcompany.com",
 +
 +    # Categories can be used to filter modules in modules listing
-+    # Check https://github.com/odoo/odoo/blob/12.0/odoo/addons/base/data/ir_module_category_data.xml
++    # Check https://github.com/odoo/odoo/blob/13.0/odoo/addons/base/data/ir_module_category_data.xml
 +    # for the full list
 +    'category': 'Uncategorized',
 +    'version': '0.1',
diff --git a/doc/reference/module.rst b/doc/reference/module.rst
index 437d2c411ee..eb0abb3004f 100644
--- a/doc/reference/module.rst
+++ b/doc/reference/module.rst
@@ -130,4 +130,4 @@ Available manifest fields are:
 
 .. _semantic versioning: https://semver.org
 .. _existing categories:
-     https://github.com/odoo/odoo/blob/12.0/odoo/addons/base/data/ir_module_category_data.xml
+     https://github.com/odoo/odoo/blob/13.0/odoo/addons/base/data/ir_module_category_data.xml
diff --git a/doc/setup/email_gateway.rst b/doc/setup/email_gateway.rst
index 3567ad9c9bf..bc73535ab09 100644
--- a/doc/setup/email_gateway.rst
+++ b/doc/setup/email_gateway.rst
@@ -40,4 +40,4 @@ For Exim
     - `Exim <https://www.exim.org/docs.html>`
 
 
-.. note:: If you don't have access/manage your email server, use `inbound messages<https://www.odoo.com/documentation/user/12.0/discuss/email_servers.html#how-to-manage-inbound-messages>`.
+.. note:: If you don't have access/manage your email server, use `inbound messages<https://www.odoo.com/documentation/user/13.0/discuss/email_servers.html#how-to-manage-inbound-messages>`.
diff --git a/doc/setup/install.rst b/doc/setup/install.rst
index d42becb4f90..4b9d0735a26 100644
--- a/doc/setup/install.rst
+++ b/doc/setup/install.rst
@@ -110,7 +110,7 @@ Linux
 Debian/Ubuntu
 '''''''''''''
 
-Odoo 12.0 'deb' package currently supports `Debian Stretch`_, `Ubuntu 18.04`_ or above.
+Odoo 13.0 'deb' package currently supports `Debian Buster`_, `Ubuntu 18.04`_ or above.
 
 Prepare
 ^^^^^^^
@@ -143,7 +143,7 @@ following commands as root:
 .. code-block:: console
 
     # wget -O - https://nightly.odoo.com/odoo.key | apt-key add -
-    # echo "deb http://nightly.odoo.com/12.0/nightly/deb/ ./" >> /etc/apt/sources.list.d/odoo.list
+    # echo "deb http://nightly.odoo.com/13.0/nightly/deb/ ./" >> /etc/apt/sources.list.d/odoo.list
     # apt-get update && apt-get install odoo
 
 You can then use the usual ``apt-get upgrade`` command to keep your installation up-to-date.
@@ -176,7 +176,7 @@ Or ``dpkg``:
 This will install Odoo as a service, create the necessary PostgreSQL_ user
 and automatically start the server.
 
-.. warning:: The python3-xlwt Debian package does not exists in Debian Stretch nor Ubuntu 18.04.
+.. warning:: The python3-xlwt Debian package does not exists in Debian Buster nor Ubuntu 18.04.
              This python module is needed to export into xls format.
 
 If you need the feature, you can install it manually.
@@ -200,9 +200,9 @@ If you need this feature, you can install the python module like this:
 Fedora
 ''''''
 
-Odoo 12.0 'rpm' package supports Fedora 26.
+Odoo 13.0 'rpm' package supports Fedora 26.
 As of 2017, CentOS does not have the minimum Python requirements (3.5) for
-Odoo 12.0.
+Odoo 13.0.
 
 Prepare
 ^^^^^^^
@@ -234,7 +234,7 @@ commands:
 
 .. code-block:: console
 
-    $ sudo dnf config-manager --add-repo=https://nightly.odoo.com/12.0/nightly/rpm/odoo.repo
+    $ sudo dnf config-manager --add-repo=https://nightly.odoo.com/13.0/nightly/rpm/odoo.repo
     $ sudo dnf install -y odoo
     $ sudo systemctl enable odoo
     $ sudo systemctl start odoo
@@ -252,7 +252,7 @@ Once downloaded, the package can be installed using the 'dnf' package manager:
 
 .. code-block:: console
 
-    $ sudo dnf localinstall odoo_12.0.latest.noarch.rpm
+    $ sudo dnf localinstall odoo_13.0.latest.noarch.rpm
     $ sudo systemctl enable odoo
     $ sudo systemctl start odoo
 
@@ -734,7 +734,7 @@ Docker
 The full documentation on how to use Odoo with Docker can be found on the
 official Odoo `docker image <https://registry.hub.docker.com/_/odoo/>`_ page.
 
-.. _Debian Stretch: https://www.debian.org/releases/stretch/
+.. _Debian Buster: https://www.debian.org/releases/buster/
 .. _demo: https://demo.odoo.com
 .. _docker: https://www.docker.com
 .. _download: https://www.odoo.com/page/download
diff --git a/doc/setup/update.rst b/doc/setup/update.rst
index b036837ca65..9438b1ab884 100644
--- a/doc/setup/update.rst
+++ b/doc/setup/update.rst
@@ -20,7 +20,7 @@ definitions:
 
 Updating (an Odoo installation)
   Refers to the process of obtaining the latest revision of the source code for
-  your current Odoo Edition. For example, updating your Odoo Enterprise 12.0 to the
+  your current Odoo Edition. For example, updating your Odoo Enterprise 13.0 to the
   latest revision.
   This does not directly cause any change to the contents of your Odoo database, and
   can be undone by reinstalling the previous revision of the source code.
@@ -110,7 +110,7 @@ to replace the installation directory with a newer version. First download the l
 from Odoo.com. They are updated daily and include the latest security fixes (see step #1)
 After downloading the package, extract it to a temporary location on your server.
 
-You will get a folder labelled with the version of the source code, for example "odoo-12.0+e.20180719",
+You will get a folder labelled with the version of the source code, for example "odoo-13.0+e.20190719",
 that contains a folder "odoo.egg-info" and the actual source code folder named "odoo" (for Odoo 10
 and later) or "openerp" for older versions.
 You can ignore the odoo.egg-info folder. Locate the folder where your current installation is deployed,
diff --git a/doc/webservices/localization.rst b/doc/webservices/localization.rst
index 38cb6c0947c..e957f18b11c 100644
--- a/doc/webservices/localization.rst
+++ b/doc/webservices/localization.rst
@@ -138,7 +138,7 @@ Each ``account.account.template`` is able to create an ``account.account`` for e
 Some of the described fields above deserve a bit more explanation.
 
 The ``user_type_id`` field requires a value of type ``account.account.type``.
-Although some additional types could be created in a localization module, we encourage the usage of the existing types in the `account/data/data_account_type.xml <https://github.com/odoo/odoo/blob/12.0/addons/account/data/data_account_type.xml>`_ file.
+Although some additional types could be created in a localization module, we encourage the usage of the existing types in the `account/data/data_account_type.xml <https://github.com/odoo/odoo/blob/13.0/addons/account/data/data_account_type.xml>`_ file.
 The usage of these generic types ensures the generic reports working correctly in addition to those that you could create in your localization module.
 
 .. warning::
diff --git a/doc/webservices/upgrade.rst b/doc/webservices/upgrade.rst
index 0e166b74be0..13f7e8472ce 100644
--- a/doc/webservices/upgrade.rst
+++ b/doc/webservices/upgrade.rst
@@ -55,7 +55,7 @@ The ``create`` method
 
     :param str contract: (required) your enterprise contract reference
     :param str email: (required) your email address
-    :param str target: (required) the Odoo version you want to upgrade to. Valid choices: 10.0, 11.0, 12.0
+    :param str target: (required) the Odoo version you want to upgrade to. Valid choices: 11.0, 12.0, 13.0
     :param str aim: (required) the purpose of your upgrade database request. Valid choices: test, production.
     :param str filename: (required) a purely informative name for you database dump file
     :param str timezone: (optional) the timezone used by your server. Only for Odoo source version < 6.1
@@ -96,9 +96,9 @@ See a sample output aside.
               "failures": [
                 {
                   "expected": [
-                    "10.0",
                     "11.0",
                     "12.0",
+                    "13.0",
                   ],
                   "message": "Invalid value \"5.0\"",
                   "reason": "TARGET:INVALID",
diff --git a/odoo/addons/base/models/res_users.py b/odoo/addons/base/models/res_users.py
index 910b584ac78..3777716f097 100644
--- a/odoo/addons/base/models/res_users.py
+++ b/odoo/addons/base/models/res_users.py
@@ -869,7 +869,7 @@ class Users(models.Model):
                     "and *might* be a proxy. If your Odoo is behind a proxy, "
                     "it may be mis-configured. Check that you are running "
                     "Odoo in Proxy Mode and that the proxy is properly configured, see "
-                    "https://www.odoo.com/documentation/12.0/setup/deploy.html#https for details.",
+                    "https://www.odoo.com/documentation/13.0/setup/deploy.html#https for details.",
                     source
                 )
             raise AccessDenied(_("Too many login failures, please wait a bit before trying again."))
diff --git a/odoo/cli/templates/default/__manifest__.py.template b/odoo/cli/templates/default/__manifest__.py.template
index 0144b34c78c..3cb2adac44b 100644
--- a/odoo/cli/templates/default/__manifest__.py.template
+++ b/odoo/cli/templates/default/__manifest__.py.template
@@ -14,7 +14,7 @@
     'website': "http://www.yourcompany.com",
 
     # Categories can be used to filter modules in modules listing
-    # Check https://github.com/odoo/odoo/blob/12.0/odoo/addons/base/data/ir_module_category_data.xml
+    # Check https://github.com/odoo/odoo/blob/13.0/odoo/addons/base/data/ir_module_category_data.xml
     # for the full list
     'category': 'Uncategorized',
     'version': '0.1',
diff --git a/odoo/http.py b/odoo/http.py
index 721746ee7ce..6f650a59195 100644
--- a/odoo/http.py
+++ b/odoo/http.py
@@ -778,7 +778,7 @@ class HttpRequest(WebRequest):
 
 Odoo URLs are CSRF-protected by default (when accessed with unsafe
 HTTP methods). See
-https://www.odoo.com/documentation/12.0/reference/http.html#csrf for
+https://www.odoo.com/documentation/13.0/reference/http.html#csrf for
 more details.
 
 * if this endpoint is accessed through Odoo via py-QWeb form, embed a CSRF