diff --git a/docs/releasenotes.rst b/docs/releasenotes.rst
index e31d9566b7ecefe1c0170bf18148387b9a9410c1..6f251f9e3b2a0e22604c2f2be07fb94ca225e329 100644
--- a/docs/releasenotes.rst
+++ b/docs/releasenotes.rst
@@ -5,6 +5,15 @@ Release notes
 x.y.z
 -----
 
+**New features/improvements**
+
+* ``backup_client`` role
+
+  * Switched to using Paramiko + SFTP backend (instead of pexpect +
+    SFTP), which should improve the backup performance.
+
+**Bug fixes:**
+
 * ``common`` role
 
   * Fixed permission errors with Python cache directories in the pip