Update release notes for upcoming 3.1.5 version.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

docs/releases/3.1.5.rst

@@ -0,0 +1,83 @@
+===============================
+Mayan EDMS v3.1.5 release notes
+===============================
+
+Released: October XX, 2018
+
+* Consolidate some document indexing test code into a new mixin.
+* Split the code of the mountindex command to be able to add tests.
+* Fix the way the children of IndexInstanceNode are accessed. Fixes
+  GitLab issue #518. Thanks to TheOneValen @TheOneValen for the report.
+* Remove newlines from the index name levels before using them as FUSE
+  directories.
+* Fixed duplicated FUSE directory removal.
+
+Removals
+--------
+
+* None
+
+Upgrading from a previous version
+---------------------------------
+
+
+If installed via Python's PIP
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Remove deprecated requirements::
+
+    $ curl https://gitlab.com/mayan-edms/mayan-edms/raw/master/removals.txt | pip uninstall -r /dev/stdin
+
+Type in the console::
+
+    $ pip install mayan-edms==3.1.5
+
+the requirements will also be updated automatically.
+
+
+Using Git
+~~~~~~~~~
+
+If you installed Mayan EDMS by cloning the Git repository issue the commands::
+
+    $ git reset --hard HEAD
+    $ git pull
+
+otherwise download the compressed archived and uncompress it overriding the
+existing installation.
+
+Remove deprecated requirements::
+
+    $ pip uninstall -y -r removals.txt
+
+Next upgrade/add the new requirements::
+
+    $ pip install --upgrade -r requirements.txt
+
+
+Common steps
+~~~~~~~~~~~~
+Perform these steps after updating the code from either step above.
+
+Migrate existing database schema with::
+
+    $ mayan-edms.py performupgrade
+
+Add new static media::
+
+    $ mayan-edms.py collectstatic --noinput
+
+The upgrade procedure is now complete.
+
+
+Backward incompatible changes
+-----------------------------
+
+* None
+
+Bugs fixed or issues closed
+===========================
+
+* `GitLab issue #518 <https://gitlab.com/mayan-edms/mayan-edms/issues/518>`_ mountindex broken (3.1.x)
+
+.. _PyPI: https://pypi.python.org/pypi/mayan-edms/

docs/releases/index.rst

@@ -22,6 +22,7 @@ versions of the documentation contain the release notes for any later releases.
 .. toctree::
    :maxdepth: 1
 
+   3.1.5
    3.1.4
    3.1.3
    3.1.2