diff --git a/docs/changelog.rst b/docs/changelog.rst
index 0c7ac9a..883156e 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,19 +1,33 @@
 Changelog
 =========
 
+* :release:`0.12.0 <2020-04-10>`
+* :support:`-` add architecture diagramm for documentation
+* :support:`-` drop environment specific settings
+* :support:`-` update to Python 3
+* :support:`-` use Pipenv for dependency management
+* :support:`-` switch result backend to Redis
 * :support:`-` use separate test vhost for celery queues
 * :support:`-` switch licensing to AGPLv3+
 * :support:`-` add a Vagrant setup to ease development
-* :support:`-` add example provisioning defined as saltstack states
+* :support:`-` add Docker setup for local development 
 * :feature:`-` let all celery tasks run asynchronously and move task processing
   to signal handlers
 * :feature:`-` add unit tests for all the code
 * :feature:`-` add proper configuration for coverage, flake8 and pep8
-* :feature:`-` update to Django 1.9.1
+* :feature:`-` update to Django 2.2.12
 * :support:`-` use gvacommon from separate repository
-* :feature:`17` add DNS zone management
 * :support:`-` update documentation
 
+* :release:`0.11.6 <2020-02-14>`
+* :support:`-` Update dependencies to versions that work with Debian Stretch
+
+* :release:`0.11.5 <2018-12-26>`
+* :support:`-` Remove Xing support from settings and templates
+
+* :release:`0.11.4 <2016-12-31>`
+* :bug:`-` fix wrong tag in password reset done template
+
 * :release:`0.11.3 <2015-02-21>`
 * :bug:`-` fix handling of OpenSSH formatted keys with whitespace in comments
 * :bug:`-` the ssh key list does not show SSH keys of other users anymore
diff --git a/docs/conf.py b/docs/conf.py
index 11a3fa5..e778564 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -22,6 +22,7 @@ import django
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 sys.path.insert(0, os.path.abspath(os.path.join('..', 'gnuviechadmin')))
 
+os.environ['DJANGO_SETTINGS_MODULE'] = 'gnuviechadmin.settings'
 os.environ['GVA_SITE_ADMINMAIL'] = 'admin@gva.example.org'
 
 django.setup()
@@ -38,8 +39,8 @@ extensions = [
     'sphinxcontrib.blockdiag']
 
 # configuration for releases extension
-releases_issue_uri = 'https://dev.gnuviech-server.de/gva/ticket/%s'
-releases_release_uri = 'https://dev.gnuviech-server.de/gva/browser/?rev=%s'
+releases_issue_uri = 'https://git.dittberner.info/gnuviech/gva/issues/%s'
+releases_release_uri = 'https://git.dittberner.info/gnuviech/gva/src/tag/%s'
 
 # configuration for blockdiag extension
 blockdiag_fontpath = '/usr/share/fonts/truetype/dejavu/'
@@ -58,7 +59,7 @@ master_doc = 'index'
 
 # General information about the project.
 project = u'gnuviechadmin'
-copyright = u'2014, 2015, 2016 Jan Dittberner'
+copyright = u'2014-2020, Jan Dittberner'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
diff --git a/docs/install.rst b/docs/install.rst
index 2ac2b6e..3b22344 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -1,59 +1,22 @@
-Installation
-============
+.. index:: installation
 
-You have several options in setting up your working environment.  We recommend
-using virtualenv to separate the dependencies of your project from your
-system's python environment.  If on Linux or Mac OS X, you can also use
-virtualenvwrapper to help manage multiple virtualenvs across different
-projects.
+=======
+Install
+=======
 
-Virtualenv Only
----------------
+Working Environment
+===================
 
-First, make sure you are using virtualenv (http://www.virtualenv.org). Once
-that's installed, create your virtualenv::
+To get a running work environment use `pipenv`_.
 
-    $ virtualenv --distribute gnuviechadmin
+.. _pipenv: https://pipenv.kennethreitz.org/en/latest/
 
-You will also need to ensure that the virtualenv has the project directory
-added to the path. Adding the project directory will allow `django-admin.py` to
-be able to change settings using the `--settings` flag.
+To get started install `pip` and `pipenv` and use `pipenv install --dev`:
 
-Virtualenv with virtualenvwrapper
-------------------------------------
+.. code-block:: sh
 
-In Linux and Mac OSX, you can install virtualenvwrapper
-(http://virtualenvwrapper.readthedocs.org/en/latest/), which will take care of
-managing your virtual environments and adding the project path to the
-`site-directory` for you::
+   $ apt install python3-pip
+   $ python3 -m pip install --user -U pipenv
+   $ pipenv install --dev
 
-    $ mkdir gnuviechadmin
-    $ mkvirtualenv -a gnuviechadmin gnuviechadmin-dev
     $ cd gnuviechadmin && add2virtualenv `pwd`
-
-Installation of Dependencies
-=============================
-
-Depending on where you are installing dependencies:
-
-In development::
-
-    $ pip install -r requirements/local.txt
-
-For production::
-
-    $ pip install -r requirements.txt
-
-PowerDNS setup
-==============
-
-The models in :py:mod:`domains.models` are meant to be used together with a
-PowerDNS setup with the generic PostgreSQL backend
-(https://doc.powerdns.com/md/authoritative/backend-generic-mypgsql/). The
-database schema differs a bit from the original schema to fit the Django model
-conventions. To make PowerDNS work you have to redefine the SQL statements by
-copying the following content to
-:file:`/etc/powerdns/pdns.d/pdns.local.gva_queries.conf`.
-
-.. literalinclude:: pdns.local.gva_queries.conf
-   :language: properties
diff --git a/gnuviechadmin/gnuviechadmin/__init__.py b/gnuviechadmin/gnuviechadmin/__init__.py
index f02ae64..4f7caa1 100644
--- a/gnuviechadmin/gnuviechadmin/__init__.py
+++ b/gnuviechadmin/gnuviechadmin/__init__.py
@@ -1,4 +1,4 @@
 # import celery_app to initialize it
 from gnuviechadmin.celery import app as celery_app  # NOQA
 
-__version__ = '0.12.0-alpha'
+__version__ = '0.12.0'