diff --git a/mercurial.spec b/mercurial.spec
index 7d31f46..70cd93a 100644
--- a/mercurial.spec
+++ b/mercurial.spec
@@ -1,5 +1,5 @@
 Name:          mercurial
-Version:       3.9.2
+Version:       4.0
 Release:       1mamba
 Summary:       A scalable distributed Source Control Management system
 Group:         Applications/Development
@@ -66,6 +66,9 @@ rm -f .packlist
 %{_bindir}/hgk
 
 %changelog
+* Wed Nov 02 2016 Automatic Build System <autodist@mambasoft.it> 4.0-1mamba
+- automatic version update by autodist
+
 * Thu Oct 13 2016 Automatic Build System <autodist@mambasoft.it> 3.9.2-1mamba
 - automatic version update by autodist