diff --git a/docs/releasenotes.rst b/docs/releasenotes.rst
index 6f251f9e3b2a0e22604c2f2be07fb94ca225e329..36c71a5bff9f7978b074f23389522dbdbfeb84bd 100644
--- a/docs/releasenotes.rst
+++ b/docs/releasenotes.rst
@@ -5,6 +5,12 @@ Release notes
 x.y.z
 -----
 
+**Breaking changes:**
+
+* All roles
+
+  * Dropped support for Debian 11 (Bullseye).
+
 **New features/improvements**
 
 * ``backup_client`` role