diff --git a/CHANGELOG b/CHANGELOG
index a3ec8e7280..0bdf772381 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+Version 6.4.0 - 2022-05-02
+* Bug fixes (see mercurial logs for details)
 * Add support for Python 3.10
 * Remove support for Python 3.6
 
diff --git a/COPYRIGHT b/COPYRIGHT
index d9166f48a0..af3ff1ed70 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,6 +1,6 @@
 Copyright (C) 2009-2013 Bertrand Chenal.
-Copyright (C) 2009-2021 Cédric Krier.
-Copyright (C) 2009-2021 B2CK SPRL.
+Copyright (C) 2009-2022 Cédric Krier.
+Copyright (C) 2009-2022 B2CK SPRL.
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/tryton.cfg b/tryton.cfg
index 3b7420d3b1..6d8f6d4f0a 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -1,5 +1,5 @@
 [tryton]
-version=6.3.0
+version=6.4.0
 depends:
     ir
     company