diff --git a/README.md b/README.md
index 4ab9a66c..f8a280c8 100644
--- a/README.md
+++ b/README.md
@@ -4,3 +4,7 @@ A repository for Ansible roles used by Evolix.
 
 It contains only roles, everything else is available at
 https://forge.evolix.org/projects/ansible-public
+
+The **stable** branch contains roles that we consider ready for production.
+
+The **unstable** branch contains not sufficiently tested roles (or evolutions on existing roles) that we don't consider ready for production yet.