diff --git a/CHANGELOG b/CHANGELOG
new file mode 100644
index 0000000000..34f88f269a
--- /dev/null
+++ b/CHANGELOG
@@ -0,0 +1,2 @@
+Version 4.0.0 - 2016-05-02
+* Initial release
\ No newline at end of file
diff --git a/tryton.cfg b/tryton.cfg
index 30fc888934..288b0cc114 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -1,5 +1,5 @@
 [tryton]
-version=3.9.0
+version=4.0.0
 depends:
     company
     ir