Added stub 2.1 release notes.

docs/releases/2.1.txt

+============================================
+Django 2.1 release notes - UNDER DEVELOPMENT
+============================================
+
+Welcome to Django 2.1!
+
+These release notes cover the :ref:`new features <whats-new-2.1>`, as well as
+some :ref:`backwards incompatible changes <backwards-incompatible-2.1>` you'll
+want to be aware of when upgrading from Django 2.0 or earlier. We've
+:ref:`dropped some features<removed-features-2.1>` that have reached the end of
+their deprecation cycle, and we've :ref:`begun the deprecation process for some
+features <deprecated-features-2.1>`.
+
+See the :doc:`/howto/upgrade-version` guide if you're updating an existing
+project.
+
+Python compatibility
+====================
+
+Django 2.1 supports Python 3.5, 3.6, and 3.7. Django 2.0 is the last version to
+support Python 3.4.  We **highly recommend** and only officially support the
+latest release of each series.
+
+.. _whats-new-2.1:
+
+What's new in Django 2.1
+========================
+
+Minor features
+--------------
+
+:mod:`django.contrib.admin`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.admindocs`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.auth`
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.contenttypes`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.gis`
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.messages`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.postgres`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.redirects`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.sessions`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.sitemaps`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.sites`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.staticfiles`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+:mod:`django.contrib.syndication`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+Cache
+~~~~~
+
+* ...
+
+CSRF
+~~~~
+
+* ...
+
+Database backends
+~~~~~~~~~~~~~~~~~
+
+* ...
+
+Email
+~~~~~
+
+* ...
+
+File Storage
+~~~~~~~~~~~~
+
+* ...
+
+File Uploads
+~~~~~~~~~~~~
+
+* ...
+
+
+Forms
+~~~~~
+
+* ...
+
+Generic Views
+~~~~~~~~~~~~~
+
+* ...
+
+Internationalization
+~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+Management Commands
+~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+Migrations
+~~~~~~~~~~
+
+* ...
+
+Models
+~~~~~~
+
+* ...
+
+Requests and Responses
+~~~~~~~~~~~~~~~~~~~~~~
+
+* ...
+
+Serialization
+~~~~~~~~~~~~~
+
+* ...
+
+Signals
+~~~~~~~
+
+* ...
+
+Templates
+~~~~~~~~~
+
+* ...
+
+Tests
+~~~~~
+
+* ...
+
+URLs
+~~~~
+
+* ...
+
+Validators
+~~~~~~~~~~
+
+* ...
+
+.. _backwards-incompatible-2.1:
+
+Backwards incompatible changes in 2.1
+=====================================
+
+Database backend API
+--------------------
+
+* ...
+
+Miscellaneous
+-------------
+
+* ...
+
+.. _deprecated-features-2.1:
+
+Features deprecated in 2.1
+==========================
+
+Miscellaneous
+-------------
+
+* ...
+
+.. _removed-features-2.1:
+
+Features removed in 2.1
+=======================
+
+These features have reached the end of their deprecation cycle and are removed
+in Django 2.1. See :ref:`deprecated-features-1.11` for details, including how
+to remove usage of these features.

docs/releases/index.txt

@@ -20,6 +20,13 @@ versions of the documentation contain the release notes for any later releases.
 
 .. _development_release_notes:
 
+2.1 release
+-----------
+.. toctree::
+   :maxdepth: 1
+
+   2.1
+
 2.0 release
 -----------
 .. toctree::