diff --git a/HISTORY.rst b/HISTORY.rst
index 75b9212817..849f2c0811 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,3 +1,8 @@
+2.5.2 (2017-07-08)
+==================
+- Improve new document creation signal handling.
+  Fixes issue with duplicate scanning at upload.
+
 2.5.1 (2017-07-08)
 ==================
 - Update release target due to changes in PyPI.
diff --git a/docs/releases/2.5.2.rst b/docs/releases/2.5.2.rst
new file mode 100644
index 0000000000..6e8fb4e52e
--- /dev/null
+++ b/docs/releases/2.5.2.rst
@@ -0,0 +1,74 @@
+===============================
+Mayan EDMS v2.5.2 release notes
+===============================
+
+Released: July 08, 2017
+
+What's new
+==========
+
+Improve duplicate document scan
+-------------------------------
+Previously the way document creation code was enclosed in a single database
+transactions. This cause the duplicate scan at upload code to received a
+document reference to uncommitted database data. The single database
+transaction was split into smaller units to make sure the duplicate scan
+recevies saved and committed data.
+
+
+Removals
+--------
+* None
+
+Upgrading from a previous version
+---------------------------------
+
+Using PIP
+~~~~~~~~~
+
+Type in the console::
+
+    $ pip install -U mayan-edms
+
+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.
+
+Next upgrade/add the new requirements::
+
+    $ pip install --upgrade -r requirements.txt
+
+Common steps
+~~~~~~~~~~~~
+
+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
+===========================
+
+* None
+
+.. _PyPI: https://pypi.python.org/pypi/mayan-edms/
diff --git a/docs/releases/index.rst b/docs/releases/index.rst
index f3831f12ba..465eaf6ec3 100644
--- a/docs/releases/index.rst
+++ b/docs/releases/index.rst
@@ -22,6 +22,7 @@ versions of the documentation contain the release notes for any later releases.
 .. toctree::
    :maxdepth: 1
 
+   2.5.2
    2.5.1
    2.5
    2.4
diff --git a/mayan/__init__.py b/mayan/__init__.py
index 0c10619b82..bdd20405f4 100644
--- a/mayan/__init__.py
+++ b/mayan/__init__.py
@@ -1,8 +1,8 @@
 from __future__ import unicode_literals
 
 __title__ = 'Mayan EDMS'
-__version__ = '2.5.1'
-__build__ = 0x020501
+__version__ = '2.5.2'
+__build__ = 0x020502
 __author__ = 'Roberto Rosario'
 __author_email__ = 'roberto.rosario@mayan-edms.com'
 __description__ = 'Free Open Source Electronic Document Management System'