diff --git a/CHANGELOG b/CHANGELOG
index e0ccc4e1a4..6d99f0ac1f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+Version 5.2.0 - 2019-05-06
+* Bug fixes (see mercurial logs for details)
 * Add domain inversion for reference fields
 * Add list-form view
 * Remove support for Python 3.4
diff --git a/COPYRIGHT b/COPYRIGHT
index e61ea379a9..85562bcfa6 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,11 +1,11 @@
 Copyright (C) 2004-2008 Tiny SPRL.
 Copyright (C) 2007-2009 Lorenzo Gil Sanchez.
 Copyright (C) 2007-2013 Bertrand Chenal.
-Copyright (C) 2007-2018 Cédric Krier.
+Copyright (C) 2007-2019 Cédric Krier.
 Copyright (C) 2008-2011 Udo Spallek.
 Copyright (C) 2008-2011 virtual things - Preisler & Spallek GbR.
-Copyright (C) 2008-2018 B2CK SPRL.
-Copyright (C) 2010-2018 Nicolas Évrard.
+Copyright (C) 2008-2019 B2CK SPRL.
+Copyright (C) 2010-2019 Nicolas Évrard.
 Copyright (C) 2011-2012 Rodrigo Hübner.
 Copyright (C) 2012-2013 Antoine Smolders.
 
diff --git a/doc/conf.py b/doc/conf.py
index 2467fea617..d53c384fab 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -47,9 +47,9 @@ copyright = '2008-2011,  Anne Krings, Bertrand Chenal, Cédric Krier, \
 # built documents.
 #
 # The short X.Y version.
-version = '5.1'
+version = '5.2'
 # The full version, including alpha/beta/rc tags.
-release = '5.1'
+release = '5.2'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/tryton/__init__.py b/tryton/__init__.py
index b12f4cb50c..ee0594e4e2 100644
--- a/tryton/__init__.py
+++ b/tryton/__init__.py
@@ -1,6 +1,6 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-__version__ = "5.1.0"
+__version__ = "5.2.0"
 import gi
 
 gi.require_version('Gtk', '3.0')
diff --git a/tryton/gui/window/about.py b/tryton/gui/window/about.py
index daf2016fdc..5875f76787 100644
--- a/tryton/gui/window/about.py
+++ b/tryton/gui/window/about.py
@@ -10,7 +10,7 @@ from tryton.common import get_toplevel_window
 from tryton import __version__
 
 COPYRIGHT = '''\
-Copyright (C) 2004-2018 Tryton.
+Copyright (C) 2004-2019 Tryton.
 '''
 AUTHORS = [
         'Bertrand Chenal <bertrand.chenal@b2ck.com>',