diff --git a/CHANGELOG b/CHANGELOG
index 06cb82268b..3ee21564b6 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+Version 6.6.0 - 2022-10-31
+--------------------------
+* Bug fixes (see mercurial logs for details)
+
 Version 6.4.0 - 2022-05-02
 --------------------------
 * Bug fixes (see mercurial logs for details)
diff --git a/tryton.cfg b/tryton.cfg
index d714449cd8..569862bca5 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -1,5 +1,5 @@
 [tryton]
-version=6.5.0
+version=6.6.0
 depends:
     ir
     res